diff options
Diffstat (limited to 'gnulib/import/m4')
156 files changed, 4748 insertions, 1865 deletions
diff --git a/gnulib/import/m4/00gnulib.m4 b/gnulib/import/m4/00gnulib.m4 index bb37e32aa3c..e3e0fb6daa2 100644 --- a/gnulib/import/m4/00gnulib.m4 +++ b/gnulib/import/m4/00gnulib.m4 @@ -1,5 +1,5 @@ # 00gnulib.m4 serial 3 -dnl Copyright (C) 2009-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/__inline.m4 b/gnulib/import/m4/__inline.m4 new file mode 100644 index 00000000000..e1aa310c957 --- /dev/null +++ b/gnulib/import/m4/__inline.m4 @@ -0,0 +1,22 @@ +# Test for __inline keyword +dnl Copyright 2017-2019 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl___INLINE], +[ + AC_CACHE_CHECK([whether the compiler supports the __inline keyword], + [gl_cv_c___inline], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[typedef int foo_t; + static __inline foo_t foo (void) { return 0; }]], + [[return foo ();]])], + [gl_cv_c___inline=yes], + [gl_cv_c___inline=no])]) + if test $gl_cv_c___inline = yes; then + AC_DEFINE([HAVE___INLINE], [1], + [Define to 1 if the compiler supports the keyword '__inline'.]) + fi +]) diff --git a/gnulib/import/m4/absolute-header.m4 b/gnulib/import/m4/absolute-header.m4 index 7ffc38d7a2b..a8f2cba173f 100644 --- a/gnulib/import/m4/absolute-header.m4 +++ b/gnulib/import/m4/absolute-header.m4 @@ -1,5 +1,5 @@ # absolute-header.m4 serial 16 -dnl Copyright (C) 2006-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2006-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/alloca.m4 b/gnulib/import/m4/alloca.m4 index 2382ff1eeea..29bd289b02a 100644 --- a/gnulib/import/m4/alloca.m4 +++ b/gnulib/import/m4/alloca.m4 @@ -1,5 +1,5 @@ -# alloca.m4 serial 14 -dnl Copyright (C) 2002-2004, 2006-2007, 2009-2016 Free Software Foundation, +# alloca.m4 serial 15 +dnl Copyright (C) 2002-2004, 2006-2007, 2009-2019 Free Software Foundation, dnl Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -37,6 +37,13 @@ AC_DEFUN([gl_FUNC_ALLOCA], fi AC_SUBST([ALLOCA_H]) AM_CONDITIONAL([GL_GENERATE_ALLOCA_H], [test -n "$ALLOCA_H"]) + + if test $ac_cv_working_alloca_h = yes; then + HAVE_ALLOCA_H=1 + else + HAVE_ALLOCA_H=0 + fi + AC_SUBST([HAVE_ALLOCA_H]) ]) # Prerequisites of lib/alloca.c. @@ -44,12 +51,12 @@ AC_DEFUN([gl_FUNC_ALLOCA], AC_DEFUN([gl_PREREQ_ALLOCA], [:]) # This works around a bug in autoconf <= 2.68. -# See <http://lists.gnu.org/archive/html/bug-gnulib/2011-06/msg00277.html>. +# See <https://lists.gnu.org/r/bug-gnulib/2011-06/msg00277.html>. m4_version_prereq([2.69], [] ,[ # This is taken from the following Autoconf patch: -# http://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=6cd9f12520b0d6f76d3230d7565feba1ecf29497 +# https://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commitdiff;h=6cd9f12520b0d6f76d3230d7565feba1ecf29497 # _AC_LIBOBJ_ALLOCA # ----------------- diff --git a/gnulib/import/m4/arpa_inet_h.m4 b/gnulib/import/m4/arpa_inet_h.m4 index 5387f28409d..645011d6670 100644 --- a/gnulib/import/m4/arpa_inet_h.m4 +++ b/gnulib/import/m4/arpa_inet_h.m4 @@ -1,5 +1,5 @@ -# arpa_inet_h.m4 serial 13 -dnl Copyright (C) 2006, 2008-2016 Free Software Foundation, Inc. +# arpa_inet_h.m4 serial 14 +dnl Copyright (C) 2006, 2008-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -24,6 +24,8 @@ AC_DEFUN([gl_HEADER_ARPA_INET], AC_REQUIRE([gl_FEATURES_H]) + gl_PREREQ_SYS_H_WS2TCPIP + dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use. gl_WARN_ON_USE_PREPARE([[ diff --git a/gnulib/import/m4/builtin-expect.m4 b/gnulib/import/m4/builtin-expect.m4 new file mode 100644 index 00000000000..b65fbf87a62 --- /dev/null +++ b/gnulib/import/m4/builtin-expect.m4 @@ -0,0 +1,49 @@ +dnl Check for __builtin_expect. + +dnl Copyright 2016-2019 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Written by Paul Eggert. + +AC_DEFUN([gl___BUILTIN_EXPECT], +[ + AC_CACHE_CHECK([for __builtin_expect], + [gl_cv___builtin_expect], + [AC_LINK_IFELSE( + [AC_LANG_SOURCE([[ + int + main (int argc, char **argv) + { + argc = __builtin_expect (argc, 100); + return argv[argc != 100][0]; + }]])], + [gl_cv___builtin_expect=yes], + [AC_LINK_IFELSE( + [AC_LANG_SOURCE([[ + #include <builtins.h> + int + main (int argc, char **argv) + { + argc = __builtin_expect (argc, 100); + return argv[argc != 100][0]; + }]])], + [gl_cv___builtin_expect="in <builtins.h>"], + [gl_cv___builtin_expect=no])])]) + if test "$gl_cv___builtin_expect" = yes; then + AC_DEFINE([HAVE___BUILTIN_EXPECT], [1]) + elif test "$gl_cv___builtin_expect" = "in <builtins.h>"; then + AC_DEFINE([HAVE___BUILTIN_EXPECT], [2]) + fi + AH_VERBATIM([HAVE___BUILTIN_EXPECT], + [/* Define to 1 if the compiler supports __builtin_expect, + and to 2 if <builtins.h> does. */ +#undef HAVE___BUILTIN_EXPECT +#ifndef HAVE___BUILTIN_EXPECT +# define __builtin_expect(e, c) (e) +#elif HAVE___BUILTIN_EXPECT == 2 +# include <builtins.h> +#endif + ]) +]) diff --git a/gnulib/import/m4/canonicalize.m4 b/gnulib/import/m4/canonicalize.m4 index cbbf3e26724..cb0896fbd8b 100644 --- a/gnulib/import/m4/canonicalize.m4 +++ b/gnulib/import/m4/canonicalize.m4 @@ -1,6 +1,6 @@ -# canonicalize.m4 serial 28 +# canonicalize.m4 serial 31 -dnl Copyright (C) 2003-2007, 2009-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2003-2007, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -35,8 +35,8 @@ AC_DEFUN([gl_CANONICALIZE_LGPL], HAVE_REALPATH=0 else case "$gl_cv_func_realpath_works" in - *yes) ;; - *) REPLACE_REALPATH=1 ;; + *yes) ;; + *) REPLACE_REALPATH=1 ;; esac fi else @@ -113,8 +113,12 @@ AC_DEFUN([gl_FUNC_REALPATH_WORKS], [case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_realpath_works="guessing yes" ;; - # If we don't know, assume the worst. - *) gl_cv_func_realpath_works="guessing no" ;; + # Guess yes on musl systems. + *-musl*) gl_cv_func_realpath_works="guessing yes" ;; + # Guess no on native Windows. + mingw*) gl_cv_func_realpath_works="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_realpath_works="$gl_cross_guess_normal" ;; esac ]) rm -rf conftest.a conftest.d diff --git a/gnulib/import/m4/chdir-long.m4 b/gnulib/import/m4/chdir-long.m4 index 85e7a2284c6..64b5ef9411a 100644 --- a/gnulib/import/m4/chdir-long.m4 +++ b/gnulib/import/m4/chdir-long.m4 @@ -1,4 +1,4 @@ -#serial 15 +#serial 16 # Use Gnulib's robust chdir function. # It can handle arbitrarily long directory names, which means @@ -6,7 +6,7 @@ # never fails with ENAMETOOLONG. # Arrange to compile chdir-long.c only on systems that define PATH_MAX. -dnl Copyright (C) 2004-2007, 2009-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2004-2007, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -17,14 +17,14 @@ AC_DEFUN([gl_FUNC_CHDIR_LONG], [ AC_REQUIRE([gl_PATHMAX_SNIPPET_PREREQ]) AC_CACHE_CHECK([whether this system has an arbitrary file name length limit], - gl_cv_have_arbitrary_file_name_length_limit, + [gl_cv_have_arbitrary_file_name_length_limit], [AC_EGREP_CPP([have_arbitrary_file_name_length_limit], gl_PATHMAX_SNIPPET[ #ifdef PATH_MAX have_arbitrary_file_name_length_limit #endif], - gl_cv_have_arbitrary_file_name_length_limit=yes, - gl_cv_have_arbitrary_file_name_length_limit=no)]) + [gl_cv_have_arbitrary_file_name_length_limit=yes], + [gl_cv_have_arbitrary_file_name_length_limit=no])]) ]) AC_DEFUN([gl_PREREQ_CHDIR_LONG], [:]) diff --git a/gnulib/import/m4/close.m4 b/gnulib/import/m4/close.m4 index 310f076bed8..7013a130433 100644 --- a/gnulib/import/m4/close.m4 +++ b/gnulib/import/m4/close.m4 @@ -1,5 +1,5 @@ -# close.m4 serial 8 -dnl Copyright (C) 2008-2016 Free Software Foundation, Inc. +# close.m4 serial 9 +dnl Copyright (C) 2008-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -7,10 +7,12 @@ dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_CLOSE], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) - AC_REQUIRE([gl_MSVC_INVAL]) - if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then - REPLACE_CLOSE=1 - fi + m4_ifdef([gl_MSVC_INVAL], [ + AC_REQUIRE([gl_MSVC_INVAL]) + if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then + REPLACE_CLOSE=1 + fi + ]) m4_ifdef([gl_PREREQ_SYS_H_WINSOCK2], [ gl_PREREQ_SYS_H_WINSOCK2 if test $UNISTD_H_HAVE_WINSOCK2_H = 1; then diff --git a/gnulib/import/m4/closedir.m4 b/gnulib/import/m4/closedir.m4 index 0c9fd82de2a..37dc541446b 100644 --- a/gnulib/import/m4/closedir.m4 +++ b/gnulib/import/m4/closedir.m4 @@ -1,5 +1,5 @@ -# closedir.m4 serial 5 -dnl Copyright (C) 2011-2016 Free Software Foundation, Inc. +# closedir.m4 serial 6 +dnl Copyright (C) 2011-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -7,6 +7,7 @@ dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_CLOSEDIR], [ AC_REQUIRE([gl_DIRENT_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CHECK_FUNCS([closedir]) if test $ac_cv_func_closedir = no; then diff --git a/gnulib/import/m4/codeset.m4 b/gnulib/import/m4/codeset.m4 index bc98201e39d..280f556fe83 100644 --- a/gnulib/import/m4/codeset.m4 +++ b/gnulib/import/m4/codeset.m4 @@ -1,6 +1,6 @@ # codeset.m4 serial 5 (gettext-0.18.2) -dnl Copyright (C) 2000-2002, 2006, 2008-2014, 2016 Free Software Foundation, -dnl Inc. +dnl Copyright (C) 2000-2002, 2006, 2008-2014, 2016, 2019 Free Software +dnl Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/configmake.m4 b/gnulib/import/m4/configmake.m4 deleted file mode 100644 index 80b92548ca3..00000000000 --- a/gnulib/import/m4/configmake.m4 +++ /dev/null @@ -1,55 +0,0 @@ -# configmake.m4 serial 2 -dnl Copyright (C) 2010-2016 Free Software Foundation, Inc. -dnl This file is free software; the Free Software Foundation -dnl gives unlimited permission to copy and/or distribute it, -dnl with or without modifications, as long as this notice is preserved. - -# gl_CONFIGMAKE_PREP -# ------------------ -# Guarantee all of the standard directory variables, even when used with -# autoconf 2.59 (datarootdir wasn't supported until 2.59c, and runstatedir -# in 2.70) or automake 1.9.6 (pkglibexecdir wasn't supported until 1.10b, -# and runstatedir in 1.14.1). -AC_DEFUN([gl_CONFIGMAKE_PREP], -[ - dnl Technically, datadir should default to datarootdir. But if - dnl autoconf is too old to provide datarootdir, then reversing the - dnl definition is a reasonable compromise. Only AC_SUBST a variable - dnl if it was not already defined earlier by autoconf. - if test "x$datarootdir" = x; then - AC_SUBST([datarootdir], ['${datadir}']) - fi - dnl Copy the approach used in autoconf 2.60. - if test "x$docdir" = x; then - AC_SUBST([docdir], [m4_ifset([AC_PACKAGE_TARNAME], - ['${datarootdir}/doc/${PACKAGE_TARNAME}'], - ['${datarootdir}/doc/${PACKAGE}'])]) - fi - dnl The remaining variables missing from autoconf 2.59 are easier. - if test "x$htmldir" = x; then - AC_SUBST([htmldir], ['${docdir}']) - fi - if test "x$dvidir" = x; then - AC_SUBST([dvidir], ['${docdir}']) - fi - if test "x$pdfdir" = x; then - AC_SUBST([pdfdir], ['${docdir}']) - fi - if test "x$psdir" = x; then - AC_SUBST([psdir], ['${docdir}']) - fi - if test "x$lispdir" = x; then - AC_SUBST([lispdir], ['${datarootdir}/emacs/site-lisp']) - fi - if test "x$localedir" = x; then - AC_SUBST([localedir], ['${datarootdir}/locale']) - fi - dnl Added in autoconf 2.70 - if test "x$runstatedir" = x; then - AC_SUBST([runstatedir], ['${localstatedir}/run']) - fi - - dnl Automake 1.9.6 only lacks pkglibexecdir; and since 1.11 merely - dnl provides it without AC_SUBST, this blind use of AC_SUBST is safe. - AC_SUBST([pkglibexecdir], ['${libexecdir}/${PACKAGE}']) -]) diff --git a/gnulib/import/m4/d-ino.m4 b/gnulib/import/m4/d-ino.m4 index f3ce54c9d88..882fc4cb45b 100644 --- a/gnulib/import/m4/d-ino.m4 +++ b/gnulib/import/m4/d-ino.m4 @@ -1,11 +1,11 @@ -# serial 15 +# serial 20 dnl From Jim Meyering. dnl dnl Check whether struct dirent has a member named d_ino. dnl -# Copyright (C) 1997, 1999-2001, 2003-2004, 2006-2007, 2009-2016 Free Software +# Copyright (C) 1997, 1999-2001, 2003-2004, 2006-2007, 2009-2019 Free Software # Foundation, Inc. # This file is free software; the Free Software Foundation @@ -15,7 +15,7 @@ dnl AC_DEFUN([gl_CHECK_TYPE_STRUCT_DIRENT_D_INO], [AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([for d_ino member in directory struct], - gl_cv_struct_dirent_d_ino, + [gl_cv_struct_dirent_d_ino], [AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[#include <sys/types.h> @@ -29,21 +29,25 @@ AC_DEFUN([gl_CHECK_TYPE_STRUCT_DIRENT_D_INO], return 1; e = readdir (dp); if (! e) - return 2; + { closedir (dp); return 2; } if (lstat (e->d_name, &st) != 0) - return 3; + { closedir (dp); return 3; } if (e->d_ino != st.st_ino) - return 4; + { closedir (dp); return 4; } closedir (dp); return 0; ]])], [gl_cv_struct_dirent_d_ino=yes], [gl_cv_struct_dirent_d_ino=no], [case "$host_os" in - # Guess yes on glibc systems with Linux kernel. - linux*-gnu*) gl_cv_struct_dirent_d_ino="guessing yes" ;; - # If we don't know, assume the worst. - *) gl_cv_struct_dirent_d_ino="guessing no" ;; + # Guess yes on glibc systems with Linux kernel. + linux*-gnu*) gl_cv_struct_dirent_d_ino="guessing yes" ;; + # Guess yes on musl systems with Linux kernel. + linux*-musl*) gl_cv_struct_dirent_d_ino="guessing yes" ;; + # Guess no on native Windows. + mingw*) gl_cv_struct_dirent_d_ino="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_struct_dirent_d_ino="$gl_cross_guess_normal" ;; esac ])]) case "$gl_cv_struct_dirent_d_ino" in diff --git a/gnulib/import/m4/d-type.m4 b/gnulib/import/m4/d-type.m4 index eda762c47f9..4ca56d61910 100644 --- a/gnulib/import/m4/d-type.m4 +++ b/gnulib/import/m4/d-type.m4 @@ -1,11 +1,11 @@ -# serial 11 +# serial 12 dnl From Jim Meyering. dnl dnl Check whether struct dirent has a member named d_type. dnl -# Copyright (C) 1997, 1999-2004, 2006, 2009-2016 Free Software Foundation, Inc. +# Copyright (C) 1997, 1999-2004, 2006, 2009-2019 Free Software Foundation, Inc. # # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, @@ -13,7 +13,7 @@ dnl AC_DEFUN([gl_CHECK_TYPE_STRUCT_DIRENT_D_TYPE], [AC_CACHE_CHECK([for d_type member in directory struct], - gl_cv_struct_dirent_d_type, + [gl_cv_struct_dirent_d_type], [AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #include <sys/types.h> #include <dirent.h> diff --git a/gnulib/import/m4/dirent_h.m4 b/gnulib/import/m4/dirent_h.m4 index 68836a4066b..732aa554c20 100644 --- a/gnulib/import/m4/dirent_h.m4 +++ b/gnulib/import/m4/dirent_h.m4 @@ -1,5 +1,5 @@ # dirent_h.m4 serial 16 -dnl Copyright (C) 2008-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2008-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/dirfd.m4 b/gnulib/import/m4/dirfd.m4 index 1d7cb080d8e..5c7586997fd 100644 --- a/gnulib/import/m4/dirfd.m4 +++ b/gnulib/import/m4/dirfd.m4 @@ -1,8 +1,8 @@ -# serial 24 -*- Autoconf -*- +# serial 26 -*- Autoconf -*- dnl Find out how to get the file descriptor associated with an open DIR*. -# Copyright (C) 2001-2006, 2008-2016 Free Software Foundation, Inc. +# Copyright (C) 2001-2006, 2008-2019 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. @@ -12,6 +12,7 @@ dnl From Jim Meyering AC_DEFUN([gl_FUNC_DIRFD], [ AC_REQUIRE([gl_DIRENT_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles dnl Persuade glibc <dirent.h> to declare dirfd(). AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) @@ -25,15 +26,15 @@ AC_DEFUN([gl_FUNC_DIRFD], fi AC_CACHE_CHECK([whether dirfd is a macro], - gl_cv_func_dirfd_macro, + [gl_cv_func_dirfd_macro], [AC_EGREP_CPP([dirent_header_defines_dirfd], [ #include <sys/types.h> #include <dirent.h> #ifdef dirfd dirent_header_defines_dirfd #endif], - gl_cv_func_dirfd_macro=yes, - gl_cv_func_dirfd_macro=no)]) + [gl_cv_func_dirfd_macro=yes], + [gl_cv_func_dirfd_macro=no])]) # Use the replacement if we have no function or macro with that name, # or if OS/2 kLIBC whose dirfd() does not work. diff --git a/gnulib/import/m4/dirname.m4 b/gnulib/import/m4/dirname.m4 index 6f8bec32c48..32141ae6ff0 100644 --- a/gnulib/import/m4/dirname.m4 +++ b/gnulib/import/m4/dirname.m4 @@ -1,5 +1,5 @@ #serial 10 -*- autoconf -*- -dnl Copyright (C) 2002-2006, 2009-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2002-2006, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/double-slash-root.m4 b/gnulib/import/m4/double-slash-root.m4 index dfd3921d1ec..0c5afb17156 100644 --- a/gnulib/import/m4/double-slash-root.m4 +++ b/gnulib/import/m4/double-slash-root.m4 @@ -1,5 +1,5 @@ # double-slash-root.m4 serial 4 -*- Autoconf -*- -dnl Copyright (C) 2006, 2008-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2006, 2008-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/dup.m4 b/gnulib/import/m4/dup.m4 index e30348c8cd4..005f1ea7e0a 100644 --- a/gnulib/import/m4/dup.m4 +++ b/gnulib/import/m4/dup.m4 @@ -1,5 +1,5 @@ -# dup.m4 serial 4 -dnl Copyright (C) 2011-2016 Free Software Foundation, Inc. +# dup.m4 serial 6 +dnl Copyright (C) 2011-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -7,10 +7,13 @@ dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_DUP], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) - AC_REQUIRE([gl_MSVC_INVAL]) - if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then - REPLACE_DUP=1 - fi + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + m4_ifdef([gl_MSVC_INVAL], [ + AC_REQUIRE([gl_MSVC_INVAL]) + if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then + REPLACE_DUP=1 + fi + ]) dnl Replace dup() for supporting the gnulib-defined fchdir() function, dnl to keep fchdir's bookkeeping up-to-date. m4_ifdef([gl_FUNC_FCHDIR], [ @@ -31,7 +34,12 @@ AC_DEFUN([gl_FUNC_DUP], ], [gl_cv_func_dup_works=yes], [gl_cv_func_dup_works=no], - [gl_cv_func_dup_works='guessing yes']) + [case "$host_os" in + # Guess no on native Windows. + mingw*) gl_cv_func_dup_works="guessing no" ;; + *) gl_cv_func_dup_works="guessing yes" ;; + esac + ]) ]) case "$gl_cv_func_dup_works" in *yes) ;; diff --git a/gnulib/import/m4/dup2.m4 b/gnulib/import/m4/dup2.m4 index 5b68312b1e7..b314247d3bc 100644 --- a/gnulib/import/m4/dup2.m4 +++ b/gnulib/import/m4/dup2.m4 @@ -1,5 +1,5 @@ #serial 25 -dnl Copyright (C) 2002, 2005, 2007, 2009-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2002, 2005, 2007, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/eealloc.m4 b/gnulib/import/m4/eealloc.m4 index 63d74defece..2a4b120a172 100644 --- a/gnulib/import/m4/eealloc.m4 +++ b/gnulib/import/m4/eealloc.m4 @@ -1,5 +1,5 @@ # eealloc.m4 serial 3 -dnl Copyright (C) 2003, 2009-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2003, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/environ.m4 b/gnulib/import/m4/environ.m4 index 9a0ea7e2144..c1a6fa37468 100644 --- a/gnulib/import/m4/environ.m4 +++ b/gnulib/import/m4/environ.m4 @@ -1,5 +1,5 @@ -# environ.m4 serial 6 -dnl Copyright (C) 2001-2004, 2006-2016 Free Software Foundation, Inc. +# environ.m4 serial 7 +dnl Copyright (C) 2001-2004, 2006-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -29,16 +29,14 @@ AC_DEFUN_ONCE([gl_ENVIRON], AC_DEFUN([gt_CHECK_VAR_DECL], [ define([gt_cv_var], [gt_cv_var_]$2[_declaration]) - AC_MSG_CHECKING([if $2 is properly declared]) - AC_CACHE_VAL([gt_cv_var], [ - AC_COMPILE_IFELSE( - [AC_LANG_PROGRAM( - [[$1 - extern struct { int foo; } $2;]], - [[$2.foo = 1;]])], - [gt_cv_var=no], - [gt_cv_var=yes])]) - AC_MSG_RESULT([$gt_cv_var]) + AC_CACHE_CHECK([if $2 is properly declared], [gt_cv_var], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[$1 + extern struct { int foo; } $2;]], + [[$2.foo = 1;]])], + [gt_cv_var=no], + [gt_cv_var=yes])]) if test $gt_cv_var = yes; then AC_DEFINE([HAVE_]m4_translit($2, [a-z], [A-Z])[_DECL], 1, [Define if you have the declaration of $2.]) diff --git a/gnulib/import/m4/errno_h.m4 b/gnulib/import/m4/errno_h.m4 index b111fce0532..2388854e057 100644 --- a/gnulib/import/m4/errno_h.m4 +++ b/gnulib/import/m4/errno_h.m4 @@ -1,9 +1,11 @@ -# errno_h.m4 serial 12 -dnl Copyright (C) 2004, 2006, 2008-2016 Free Software Foundation, Inc. +# errno_h.m4 serial 13 +dnl Copyright (C) 2004, 2006, 2008-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. +AC_PREREQ([2.61]) + AC_DEFUN_ONCE([gl_HEADER_ERRNO_H], [ AC_REQUIRE([AC_PROG_CC]) @@ -129,9 +131,3 @@ yes AC_SUBST($1[_VALUE]) fi ]) - -dnl Autoconf >= 2.61 has AC_COMPUTE_INT built-in. -dnl Remove this when we can assume autoconf >= 2.61. -m4_ifdef([AC_COMPUTE_INT], [], [ - AC_DEFUN([AC_COMPUTE_INT], [_AC_COMPUTE_INT([$2],[$1],[$3],[$4])]) -]) diff --git a/gnulib/import/m4/error.m4 b/gnulib/import/m4/error.m4 index f772bcf580e..393adb54c64 100644 --- a/gnulib/import/m4/error.m4 +++ b/gnulib/import/m4/error.m4 @@ -1,6 +1,6 @@ #serial 14 -# Copyright (C) 1996-1998, 2001-2004, 2009-2016 Free Software Foundation, Inc. +# Copyright (C) 1996-1998, 2001-2004, 2009-2019 Free Software Foundation, Inc. # # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, diff --git a/gnulib/import/m4/exponentd.m4 b/gnulib/import/m4/exponentd.m4 index 7869a7d6cb7..90870dfa406 100644 --- a/gnulib/import/m4/exponentd.m4 +++ b/gnulib/import/m4/exponentd.m4 @@ -1,5 +1,5 @@ # exponentd.m4 serial 3 -dnl Copyright (C) 2007-2008, 2010-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2007-2008, 2010-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/exponentl.m4 b/gnulib/import/m4/exponentl.m4 index c49cf2c3edf..4064981b37e 100644 --- a/gnulib/import/m4/exponentl.m4 +++ b/gnulib/import/m4/exponentl.m4 @@ -1,11 +1,12 @@ -# exponentl.m4 serial 3 -dnl Copyright (C) 2007-2016 Free Software Foundation, Inc. +# exponentl.m4 serial 4 +dnl Copyright (C) 2007-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_LONG_DOUBLE_EXPONENT_LOCATION], [ AC_REQUIRE([gl_BIGENDIAN]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([where to find the exponent in a 'long double'], [gl_cv_cc_long_double_expbit0], [ @@ -79,9 +80,24 @@ int main () [gl_cv_cc_long_double_expbit0=`cat conftest.out`], [gl_cv_cc_long_double_expbit0="unknown"], [ - dnl When cross-compiling, we don't know. It depends on the + dnl When cross-compiling, in general we don't know. It depends on the dnl ABI and compiler version. There are too many cases. gl_cv_cc_long_double_expbit0="unknown" + case "$host_os" in + mingw*) # On native Windows (little-endian), we know the result + # in two cases: mingw, MSVC. + AC_EGREP_CPP([Known], [ +#ifdef __MINGW32__ + Known +#endif + ], [gl_cv_cc_long_double_expbit0="word 2 bit 0"]) + AC_EGREP_CPP([Known], [ +#ifdef _MSC_VER + Known +#endif + ], [gl_cv_cc_long_double_expbit0="word 1 bit 20"]) + ;; + esac ]) rm -f conftest.out ]) diff --git a/gnulib/import/m4/extensions.m4 b/gnulib/import/m4/extensions.m4 index e114a6f7290..fd1ce817f06 100644 --- a/gnulib/import/m4/extensions.m4 +++ b/gnulib/import/m4/extensions.m4 @@ -1,7 +1,7 @@ -# serial 15 -*- Autoconf -*- +# serial 18 -*- Autoconf -*- # Enable extensions on systems that normally disable them. -# Copyright (C) 2003, 2006-2016 Free Software Foundation, Inc. +# Copyright (C) 2003, 2006-2019 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. @@ -68,6 +68,14 @@ dnl configure.ac when using autoheader 2.62. #ifndef _GNU_SOURCE # undef _GNU_SOURCE #endif +/* Enable NetBSD extensions on NetBSD. */ +#ifndef _NETBSD_SOURCE +# undef _NETBSD_SOURCE +#endif +/* Enable OpenBSD extensions on NetBSD. */ +#ifndef _OPENBSD_SOURCE +# undef _OPENBSD_SOURCE +#endif /* Enable threading extensions on Solaris. */ #ifndef _POSIX_PTHREAD_SEMANTICS # undef _POSIX_PTHREAD_SEMANTICS @@ -110,6 +118,11 @@ dnl configure.ac when using autoheader 2.62. #ifndef _XOPEN_SOURCE # undef _XOPEN_SOURCE #endif +/* Enable X/Open compliant socket functions that do not require linking + with -lxnet on HP-UX 11.11. */ +#ifndef _HPUX_ALT_XOPEN_SOCKET_API +# undef _HPUX_ALT_XOPEN_SOCKET_API +#endif /* Enable general extensions on Solaris. */ #ifndef __EXTENSIONS__ # undef __EXTENSIONS__ @@ -128,6 +141,8 @@ dnl configure.ac when using autoheader 2.62. AC_DEFINE([_ALL_SOURCE]) AC_DEFINE([_DARWIN_C_SOURCE]) AC_DEFINE([_GNU_SOURCE]) + AC_DEFINE([_NETBSD_SOURCE]) + AC_DEFINE([_OPENBSD_SOURCE]) AC_DEFINE([_POSIX_PTHREAD_SEMANTICS]) AC_DEFINE([__STDC_WANT_IEC_60559_ATTRIBS_EXT__]) AC_DEFINE([__STDC_WANT_IEC_60559_BFP_EXT__]) @@ -153,6 +168,7 @@ dnl configure.ac when using autoheader 2.62. [ac_cv_should_define__xopen_source=yes])])]) test $ac_cv_should_define__xopen_source = yes && AC_DEFINE([_XOPEN_SOURCE], [500]) + AC_DEFINE([_HPUX_ALT_XOPEN_SOCKET_API]) ])# AC_USE_SYSTEM_EXTENSIONS # gl_USE_SYSTEM_EXTENSIONS diff --git a/gnulib/import/m4/extern-inline.m4 b/gnulib/import/m4/extern-inline.m4 index 1e578f3deb4..84421cef847 100644 --- a/gnulib/import/m4/extern-inline.m4 +++ b/gnulib/import/m4/extern-inline.m4 @@ -1,6 +1,6 @@ dnl 'extern inline' a la ISO C99. -dnl Copyright 2012-2016 Free Software Foundation, Inc. +dnl Copyright 2012-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -11,7 +11,7 @@ AC_DEFUN([gl_EXTERN_INLINE], [/* Please see the Gnulib manual for how to use these macros. Suppress extern inline with HP-UX cc, as it appears to be broken; see - <http://lists.gnu.org/archive/html/bug-texinfo/2013-02/msg00030.html>. + <https://lists.gnu.org/r/bug-texinfo/2013-02/msg00030.html>. Suppress extern inline with Sun C in standards-conformance mode, as it mishandles inline functions that call each other. E.g., for 'inline void f @@ -25,20 +25,32 @@ AC_DEFUN([gl_EXTERN_INLINE], if isdigit is mistakenly implemented via a static inline function, a program containing an extern inline function that calls isdigit may not work since the C standard prohibits extern inline functions - from calling static functions. This bug is known to occur on: + from calling static functions (ISO C 99 section 6.7.4.(3). + This bug is known to occur on: OS X 10.8 and earlier; see: - http://lists.gnu.org/archive/html/bug-gnulib/2012-12/msg00023.html + https://lists.gnu.org/r/bug-gnulib/2012-12/msg00023.html DragonFly; see - http://muscles.dragonflybsd.org/bulk/bleeding-edge-potential/latest-per-pkg/ah-tty-0.3.12.log + http://muscles.dragonflybsd.org/bulk/clang-master-potential/20141111_102002/logs/ah-tty-0.3.12.log FreeBSD; see: - http://lists.gnu.org/archive/html/bug-gnulib/2014-07/msg00104.html + https://lists.gnu.org/r/bug-gnulib/2014-07/msg00104.html OS X 10.9 has a macro __header_inline indicating the bug is fixed for C and - for clang but remains for g++; see <http://trac.macports.org/ticket/41033>. - Assume DragonFly and FreeBSD will be similar. */ + for clang but remains for g++; see <https://trac.macports.org/ticket/41033>. + Assume DragonFly and FreeBSD will be similar. + + GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99 + inline semantics, unless -fgnu89-inline is used. It defines a macro + __GNUC_STDC_INLINE__ to indicate this situation or a macro + __GNUC_GNU_INLINE__ to indicate the opposite situation. + GCC 4.2 with -std=c99 or -std=gnu99 implements the GNU C inline + semantics but warns, unless -fgnu89-inline is used: + warning: C99 inline functions are not supported; using GNU89 + warning: to disable this warning use -fgnu89-inline or the gnu_inline function attribute + It defines a macro __GNUC_GNU_INLINE__ to indicate this situation. + */ #if (((defined __APPLE__ && defined __MACH__) \ || defined __DragonFly__ || defined __FreeBSD__) \ && (defined __header_inline \ diff --git a/gnulib/import/m4/fchdir.m4 b/gnulib/import/m4/fchdir.m4 index 4264166a81f..ed295621b80 100644 --- a/gnulib/import/m4/fchdir.m4 +++ b/gnulib/import/m4/fchdir.m4 @@ -1,5 +1,5 @@ -# fchdir.m4 serial 21 -dnl Copyright (C) 2006-2016 Free Software Foundation, Inc. +# fchdir.m4 serial 25 +dnl Copyright (C) 2006-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -31,10 +31,14 @@ AC_DEFUN([gl_FUNC_FCHDIR], [gl_cv_func_open_directory_works=yes], [gl_cv_func_open_directory_works=no], [case "$host_os" in - # Guess yes on glibc systems. - *-gnu*) gl_cv_func_open_directory_works="guessing yes" ;; - # If we don't know, assume the worst. - *) gl_cv_func_open_directory_works="guessing no" ;; + # Guess yes on Linux systems. + linux-* | linux) gl_cv_func_open_directory_works="guessing yes" ;; + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_open_directory_works="guessing yes" ;; + # Guess no on native Windows. + mingw*) gl_cv_func_open_directory_works="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_open_directory_works="$gl_cross_guess_normal" ;; esac ])]) case "$gl_cv_func_open_directory_works" in diff --git a/gnulib/import/m4/fcntl-o.m4 b/gnulib/import/m4/fcntl-o.m4 index 24fcf88d094..6ab3387dafa 100644 --- a/gnulib/import/m4/fcntl-o.m4 +++ b/gnulib/import/m4/fcntl-o.m4 @@ -1,23 +1,22 @@ -# fcntl-o.m4 serial 4 -dnl Copyright (C) 2006, 2009-2016 Free Software Foundation, Inc. +# fcntl-o.m4 serial 6 +dnl Copyright (C) 2006, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl Written by Paul Eggert. +AC_PREREQ([2.60]) + # Test whether the flags O_NOATIME and O_NOFOLLOW actually work. # Define HAVE_WORKING_O_NOATIME to 1 if O_NOATIME works, or to 0 otherwise. # Define HAVE_WORKING_O_NOFOLLOW to 1 if O_NOFOLLOW works, or to 0 otherwise. AC_DEFUN([gl_FCNTL_O_FLAGS], [ dnl Persuade glibc <fcntl.h> to define O_NOATIME and O_NOFOLLOW. - dnl AC_USE_SYSTEM_EXTENSIONS was introduced in autoconf 2.60 and obsoletes - dnl AC_GNU_SOURCE. - m4_ifdef([AC_USE_SYSTEM_EXTENSIONS], - [AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])], - [AC_REQUIRE([AC_GNU_SOURCE])]) + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CHECK_HEADERS_ONCE([unistd.h]) AC_CHECK_FUNCS_ONCE([symlink]) AC_CACHE_CHECK([for working fcntl.h], [gl_cv_header_working_fcntl_h], @@ -116,7 +115,13 @@ AC_DEFUN([gl_FCNTL_O_FLAGS], 68) gl_cv_header_working_fcntl_h='no (bad O_NOATIME, O_NOFOLLOW)';; #( *) gl_cv_header_working_fcntl_h='no';; esac], - [gl_cv_header_working_fcntl_h=cross-compiling])]) + [case "$host_os" in + # Guess 'no' on native Windows. + mingw*) gl_cv_header_working_fcntl_h='no' ;; + *) gl_cv_header_working_fcntl_h=cross-compiling ;; + esac + ]) + ]) case $gl_cv_header_working_fcntl_h in #( *O_NOATIME* | no | cross-compiling) ac_val=0;; #( diff --git a/gnulib/import/m4/fcntl.m4 b/gnulib/import/m4/fcntl.m4 index bb61470b2e1..e409e96b1c8 100644 --- a/gnulib/import/m4/fcntl.m4 +++ b/gnulib/import/m4/fcntl.m4 @@ -1,5 +1,5 @@ # fcntl.m4 serial 9 -dnl Copyright (C) 2009-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/fcntl_h.m4 b/gnulib/import/m4/fcntl_h.m4 index ef0d78dde1c..60dc5e21037 100644 --- a/gnulib/import/m4/fcntl_h.m4 +++ b/gnulib/import/m4/fcntl_h.m4 @@ -1,6 +1,6 @@ -# serial 15 +# serial 16 # Configure fcntl.h. -dnl Copyright (C) 2006-2007, 2009-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2006-2007, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -37,6 +37,7 @@ AC_DEFUN([gl_FCNTL_MODULE_INDICATOR], AC_DEFUN([gl_FCNTL_H_DEFAULTS], [ + GNULIB_CREAT=0; AC_SUBST([GNULIB_CREAT]) GNULIB_FCNTL=0; AC_SUBST([GNULIB_FCNTL]) GNULIB_NONBLOCKING=0; AC_SUBST([GNULIB_NONBLOCKING]) GNULIB_OPEN=0; AC_SUBST([GNULIB_OPEN]) @@ -44,6 +45,7 @@ AC_DEFUN([gl_FCNTL_H_DEFAULTS], dnl Assume proper GNU behavior unless another module says otherwise. HAVE_FCNTL=1; AC_SUBST([HAVE_FCNTL]) HAVE_OPENAT=1; AC_SUBST([HAVE_OPENAT]) + REPLACE_CREAT=0; AC_SUBST([REPLACE_CREAT]) REPLACE_FCNTL=0; AC_SUBST([REPLACE_FCNTL]) REPLACE_OPEN=0; AC_SUBST([REPLACE_OPEN]) REPLACE_OPENAT=0; AC_SUBST([REPLACE_OPENAT]) diff --git a/gnulib/import/m4/fdopendir.m4 b/gnulib/import/m4/fdopendir.m4 index cadbee3ca97..ad48e4ef2d5 100644 --- a/gnulib/import/m4/fdopendir.m4 +++ b/gnulib/import/m4/fdopendir.m4 @@ -1,7 +1,7 @@ -# serial 10 +# serial 12 # See if we need to provide fdopendir. -dnl Copyright (C) 2009-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -45,10 +45,12 @@ DIR *fdopendir (int); [gl_cv_func_fdopendir_works=yes], [gl_cv_func_fdopendir_works=no], [case "$host_os" in - # Guess yes on glibc systems. - *-gnu*) gl_cv_func_fdopendir_works="guessing yes" ;; - # If we don't know, assume the worst. - *) gl_cv_func_fdopendir_works="guessing no" ;; + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_fdopendir_works="guessing yes" ;; + # Guess yes on musl systems. + *-musl*) gl_cv_func_fdopendir_works="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_fdopendir_works="$gl_cross_guess_normal" ;; esac ])]) case "$gl_cv_func_fdopendir_works" in diff --git a/gnulib/import/m4/filenamecat.m4 b/gnulib/import/m4/filenamecat.m4 index b7948802e48..351715a7fdb 100644 --- a/gnulib/import/m4/filenamecat.m4 +++ b/gnulib/import/m4/filenamecat.m4 @@ -1,5 +1,5 @@ # filenamecat.m4 serial 11 -dnl Copyright (C) 2002-2006, 2009-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2002-2006, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/flexmember.m4 b/gnulib/import/m4/flexmember.m4 index 155ae9b8120..c245ab025f6 100644 --- a/gnulib/import/m4/flexmember.m4 +++ b/gnulib/import/m4/flexmember.m4 @@ -1,7 +1,7 @@ -# serial 4 +# serial 5 # Check for flexible array member support. -# Copyright (C) 2006, 2009-2016 Free Software Foundation, Inc. +# Copyright (C) 2006, 2009-2019 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. @@ -17,12 +17,15 @@ AC_DEFUN([AC_C_FLEXIBLE_ARRAY_MEMBER], [[#include <stdlib.h> #include <stdio.h> #include <stddef.h> - struct s { int n; double d[]; };]], + struct m { struct m *next, **list; char name[]; }; + struct s { struct s *p; struct m *m; int n; double d[]; };]], [[int m = getchar (); size_t nbytes = offsetof (struct s, d) + m * sizeof (double); nbytes += sizeof (struct s) - 1; nbytes -= nbytes % sizeof (struct s); struct s *p = malloc (nbytes); + p->p = p; + p->m = NULL; p->d[0] = 0.0; return p->d != (double *) NULL;]])], [ac_cv_c_flexmember=yes], @@ -31,12 +34,10 @@ AC_DEFUN([AC_C_FLEXIBLE_ARRAY_MEMBER], AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [], [Define to nothing if C supports flexible array members, and to 1 if it does not. That way, with a declaration like 'struct s - { int n; double d@<:@FLEXIBLE_ARRAY_MEMBER@:>@; };', the struct hack + { int n; short d@<:@FLEXIBLE_ARRAY_MEMBER@:>@; };', the struct hack can be used with pre-C99 compilers. - When computing the size of such an object, don't use 'sizeof (struct s)' - as it overestimates the size. Use 'offsetof (struct s, d)' instead. - Don't use 'offsetof (struct s, d@<:@0@:>@)', as this doesn't work with - MSVC and with C++ compilers.]) + Use 'FLEXSIZEOF (struct s, d, N * sizeof (short))' to calculate + the size in bytes of such a struct containing an N-element array.]) else AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [1]) fi diff --git a/gnulib/import/m4/float_h.m4 b/gnulib/import/m4/float_h.m4 index e2887eb5c64..1cd28a0bd2a 100644 --- a/gnulib/import/m4/float_h.m4 +++ b/gnulib/import/m4/float_h.m4 @@ -1,5 +1,5 @@ -# float_h.m4 serial 9 -dnl Copyright (C) 2007, 2009-2016 Free Software Foundation, Inc. +# float_h.m4 serial 12 +dnl Copyright (C) 2007, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -14,7 +14,7 @@ AC_DEFUN([gl_FLOAT_H], aix* | beos* | openbsd* | mirbsd* | irix*) FLOAT_H=float.h ;; - freebsd*) + freebsd* | dragonfly*) case "$host_cpu" in changequote(,)dnl i[34567]86 ) @@ -24,10 +24,14 @@ changequote([,])dnl x86_64 ) # On x86_64 systems, the C compiler may still be generating # 32-bit code. - AC_EGREP_CPP([yes], - [#if defined __LP64__ || defined __x86_64__ || defined __amd64__ - yes - #endif], + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __LP64__ || defined __x86_64__ || defined __amd64__ + int ok; + #else + error fail + #endif + ]])], [], [FLOAT_H=float.h]) ;; @@ -42,7 +46,7 @@ changequote([,])dnl ;; esac case "$host_os" in - aix* | freebsd* | linux*) + aix* | freebsd* | dragonfly* | linux*) if test -n "$FLOAT_H"; then REPLACE_FLOAT_LDBL=1 fi @@ -69,14 +73,20 @@ int main () [gl_cv_func_itold_works=no], [case "$host" in sparc*-*-linux*) - AC_EGREP_CPP([yes], - [#if defined __LP64__ || defined __arch64__ - yes - #endif], + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __LP64__ || defined __arch64__ + int ok; + #else + error fail + #endif + ]])], [gl_cv_func_itold_works="guessing no"], [gl_cv_func_itold_works="guessing yes"]) ;; - *) gl_cv_func_itold_works="guessing yes" ;; + # Guess yes on native Windows. + mingw*) gl_cv_func_itold_works="guessing yes" ;; + *) gl_cv_func_itold_works="guessing yes" ;; esac ]) ]) diff --git a/gnulib/import/m4/fnmatch.m4 b/gnulib/import/m4/fnmatch.m4 index b38f56c4d5c..75ba55b4e0a 100644 --- a/gnulib/import/m4/fnmatch.m4 +++ b/gnulib/import/m4/fnmatch.m4 @@ -1,6 +1,6 @@ -# Check for fnmatch - serial 9. -*- coding: utf-8 -*- +# Check for fnmatch - serial 14. -*- coding: utf-8 -*- -# Copyright (C) 2000-2007, 2009-2016 Free Software Foundation, Inc. +# Copyright (C) 2000-2007, 2009-2019 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. @@ -13,124 +13,128 @@ AC_DEFUN([gl_FUNC_FNMATCH_POSIX], [ m4_divert_text([DEFAULTS], [gl_fnmatch_required=POSIX]) - dnl Persuade glibc <fnmatch.h> to declare FNM_CASEFOLD etc. - dnl This is only needed if gl_fnmatch_required = GNU. It would be possible - dnl to avoid this dependency for gl_FUNC_FNMATCH_POSIX by putting - dnl gl_FUNC_FNMATCH_GNU into a separate .m4 file. - AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) - - FNMATCH_H= + AC_REQUIRE([gl_FNMATCH_H]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles gl_fnmatch_required_lowercase=` echo $gl_fnmatch_required | LC_ALL=C tr '[[A-Z]]' '[[a-z]]' ` - gl_fnmatch_cache_var="gl_cv_func_fnmatch_${gl_fnmatch_required_lowercase}" - AC_CACHE_CHECK([for working $gl_fnmatch_required fnmatch], - [$gl_fnmatch_cache_var], - [dnl Some versions of Solaris, SCO, and the GNU C Library - dnl have a broken or incompatible fnmatch. - dnl So we run a test program. If we are cross-compiling, take no chance. - dnl Thanks to John Oleynick, François Pinard, and Paul Eggert for this - dnl test. - if test $gl_fnmatch_required = GNU; then - gl_fnmatch_gnu_start= - gl_fnmatch_gnu_end= - else - gl_fnmatch_gnu_start='#if 0' - gl_fnmatch_gnu_end='#endif' - fi - AC_RUN_IFELSE( - [AC_LANG_PROGRAM( - [[#include <fnmatch.h> - static int - y (char const *pattern, char const *string, int flags) - { - return fnmatch (pattern, string, flags) == 0; - } - static int - n (char const *pattern, char const *string, int flags) - { - return fnmatch (pattern, string, flags) == FNM_NOMATCH; - } - ]], - [[char const *Apat = 'A' < '\\\\' ? "[A-\\\\\\\\]" : "[\\\\\\\\-A]"; - char const *apat = 'a' < '\\\\' ? "[a-\\\\\\\\]" : "[\\\\\\\\-a]"; - static char const A_1[] = { 'A' - 1, 0 }; - static char const A01[] = { 'A' + 1, 0 }; - static char const a_1[] = { 'a' - 1, 0 }; - static char const a01[] = { 'a' + 1, 0 }; - static char const bs_1[] = { '\\\\' - 1, 0 }; - static char const bs01[] = { '\\\\' + 1, 0 }; - int result = 0; - if (!n ("a*", "", 0)) - return 1; - if (!y ("a*", "abc", 0)) - return 1; - if (!y ("[/b", "[/b", 0)) /*"]]"*/ /* glibc Bugzilla bug 12378 */ - return 1; - if (!n ("d*/*1", "d/s/1", FNM_PATHNAME)) - return 2; - if (!y ("a\\\\bc", "abc", 0)) - return 3; - if (!n ("a\\\\bc", "abc", FNM_NOESCAPE)) - return 3; - if (!y ("*x", ".x", 0)) - return 4; - if (!n ("*x", ".x", FNM_PERIOD)) - return 4; - if (!y (Apat, "\\\\", 0)) - return 5; - if (!y (Apat, "A", 0)) - return 5; - if (!y (apat, "\\\\", 0)) - return 5; - if (!y (apat, "a", 0)) - return 5; - if (!(n (Apat, A_1, 0) == ('A' < '\\\\'))) - return 5; - if (!(n (apat, a_1, 0) == ('a' < '\\\\'))) - return 5; - if (!(y (Apat, A01, 0) == ('A' < '\\\\'))) - return 5; - if (!(y (apat, a01, 0) == ('a' < '\\\\'))) - return 5; - if (!(y (Apat, bs_1, 0) == ('A' < '\\\\'))) - return 5; - if (!(y (apat, bs_1, 0) == ('a' < '\\\\'))) - return 5; - if (!(n (Apat, bs01, 0) == ('A' < '\\\\'))) - return 5; - if (!(n (apat, bs01, 0) == ('a' < '\\\\'))) - return 5; - $gl_fnmatch_gnu_start - if (!y ("xxXX", "xXxX", FNM_CASEFOLD)) - result |= 8; - if (!y ("a++(x|yy)b", "a+xyyyyxb", FNM_EXTMATCH)) - result |= 16; - if (!n ("d*/*1", "d/s/1", FNM_FILE_NAME)) - result |= 32; - if (!y ("*", "x", FNM_FILE_NAME | FNM_LEADING_DIR)) - result |= 64; - if (!y ("x*", "x/y/z", FNM_FILE_NAME | FNM_LEADING_DIR)) - result |= 64; - if (!y ("*c*", "c/x", FNM_FILE_NAME | FNM_LEADING_DIR)) - result |= 64; - $gl_fnmatch_gnu_end - return result; - ]])], - [eval "$gl_fnmatch_cache_var=yes"], - [eval "$gl_fnmatch_cache_var=no"], - [eval "$gl_fnmatch_cache_var=\"guessing no\""]) - ]) - eval "gl_fnmatch_result=\"\$$gl_fnmatch_cache_var\"" - if test "$gl_fnmatch_result" = yes; then - dnl Not strictly necessary. Only to avoid spurious leftover files if people - dnl don't do "make distclean". - rm -f "$gl_source_base/fnmatch.h" + AC_CHECK_FUNCS_ONCE([fnmatch]) + if test $ac_cv_func_fnmatch = no; then + HAVE_FNMATCH=0 else - FNMATCH_H=fnmatch.h + gl_fnmatch_cache_var="gl_cv_func_fnmatch_${gl_fnmatch_required_lowercase}" + AC_CACHE_CHECK([for working $gl_fnmatch_required fnmatch], + [$gl_fnmatch_cache_var], + [dnl Some versions of Solaris, SCO, and the GNU C Library + dnl have a broken or incompatible fnmatch. + dnl So we run a test program. If we are cross-compiling, take no chance. + dnl Thanks to John Oleynick, François Pinard, and Paul Eggert for this + dnl test. + if test $gl_fnmatch_required = GNU; then + gl_fnmatch_gnu_start= + gl_fnmatch_gnu_end= + else + gl_fnmatch_gnu_start='#if 0' + gl_fnmatch_gnu_end='#endif' + fi + AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <fnmatch.h> + static int + y (char const *pattern, char const *string, int flags) + { + return fnmatch (pattern, string, flags) == 0; + } + static int + n (char const *pattern, char const *string, int flags) + { + return fnmatch (pattern, string, flags) == FNM_NOMATCH; + } + ]], + [[char const *Apat = 'A' < '\\\\' ? "[A-\\\\\\\\]" : "[\\\\\\\\-A]"; + char const *apat = 'a' < '\\\\' ? "[a-\\\\\\\\]" : "[\\\\\\\\-a]"; + static char const A_1[] = { 'A' - 1, 0 }; + static char const A01[] = { 'A' + 1, 0 }; + static char const a_1[] = { 'a' - 1, 0 }; + static char const a01[] = { 'a' + 1, 0 }; + static char const bs_1[] = { '\\\\' - 1, 0 }; + static char const bs01[] = { '\\\\' + 1, 0 }; + int result = 0; + if (!n ("a*", "", 0)) + return 1; + if (!y ("a*", "abc", 0)) + return 1; + if (!y ("[/b", "[/b", 0)) /*"]]"*/ /* glibc Bugzilla bug 12378 */ + return 1; + if (!n ("d*/*1", "d/s/1", FNM_PATHNAME)) + return 2; + if (!y ("a\\\\bc", "abc", 0)) + return 3; + if (!n ("a\\\\bc", "abc", FNM_NOESCAPE)) + return 3; + if (!y ("*x", ".x", 0)) + return 4; + if (!n ("*x", ".x", FNM_PERIOD)) + return 4; + if (!y (Apat, "\\\\", 0)) + return 5; + if (!y (Apat, "A", 0)) + return 5; + if (!y (apat, "\\\\", 0)) + return 5; + if (!y (apat, "a", 0)) + return 5; + if (!(n (Apat, A_1, 0) == ('A' < '\\\\'))) + return 5; + if (!(n (apat, a_1, 0) == ('a' < '\\\\'))) + return 5; + if (!(y (Apat, A01, 0) == ('A' < '\\\\'))) + return 5; + if (!(y (apat, a01, 0) == ('a' < '\\\\'))) + return 5; + if (!(y (Apat, bs_1, 0) == ('A' < '\\\\'))) + return 5; + if (!(y (apat, bs_1, 0) == ('a' < '\\\\'))) + return 5; + if (!(n (Apat, bs01, 0) == ('A' < '\\\\'))) + return 5; + if (!(n (apat, bs01, 0) == ('a' < '\\\\'))) + return 5; + $gl_fnmatch_gnu_start + if (!y ("xxXX", "xXxX", FNM_CASEFOLD)) + result |= 8; + if (!y ("a++(x|yy)b", "a+xyyyyxb", FNM_EXTMATCH)) + result |= 16; + if (!n ("d*/*1", "d/s/1", FNM_FILE_NAME)) + result |= 32; + if (!y ("*", "x", FNM_FILE_NAME | FNM_LEADING_DIR)) + result |= 64; + if (!y ("x*", "x/y/z", FNM_FILE_NAME | FNM_LEADING_DIR)) + result |= 64; + if (!y ("*c*", "c/x", FNM_FILE_NAME | FNM_LEADING_DIR)) + result |= 64; + $gl_fnmatch_gnu_end + return result; + ]])], + [eval "$gl_fnmatch_cache_var=yes"], + [eval "$gl_fnmatch_cache_var=no"], + [case "$host_os" in + # Guess yes on musl systems. + *-musl*) eval "$gl_fnmatch_cache_var=\"guessing yes\"" ;; + # Guess no otherwise, even on glibc systems. + *) eval "$gl_fnmatch_cache_var=\"guessing no\"" ;; + esac + ]) + ]) + eval "gl_fnmatch_result=\"\$$gl_fnmatch_cache_var\"" + case "$gl_fnmatch_result" in + *yes) ;; + *) REPLACE_FNMATCH=1 ;; + esac + fi + if test $HAVE_FNMATCH = 0 || test $REPLACE_FNMATCH = 1; then + gl_REPLACE_FNMATCH_H fi - AC_SUBST([FNMATCH_H]) - AM_CONDITIONAL([GL_GENERATE_FNMATCH_H], [test -n "$FNMATCH_H"]) ]) # Request a POSIX compliant fnmatch function with GNU extensions. @@ -143,11 +147,6 @@ AC_DEFUN([gl_FUNC_FNMATCH_GNU], AC_DEFUN([gl_PREREQ_FNMATCH], [ - dnl We must choose a different name for our function, since on ELF systems - dnl a broken fnmatch() in libc.so would override our fnmatch() if it is - dnl compiled into a shared library. - AC_DEFINE_UNQUOTED([fnmatch], [${gl_fnmatch_required_lowercase}_fnmatch], - [Define to a replacement function name for fnmatch().]) dnl Prerequisites of lib/fnmatch.c. AC_REQUIRE([AC_TYPE_MBSTATE_T]) AC_CHECK_DECLS([isblank], [], [], [[#include <ctype.h>]]) diff --git a/gnulib/import/m4/fnmatch_h.m4 b/gnulib/import/m4/fnmatch_h.m4 new file mode 100644 index 00000000000..fba6f868bfe --- /dev/null +++ b/gnulib/import/m4/fnmatch_h.m4 @@ -0,0 +1,75 @@ +# fnmatch_h.m4 serial 4 +dnl Copyright (C) 2009-2019 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. + +AC_DEFUN_ONCE([gl_FNMATCH_H], +[ + AC_REQUIRE([gl_FNMATCH_H_DEFAULTS]) + m4_ifdef([gl_ANSI_CXX], [AC_REQUIRE([gl_ANSI_CXX])]) + AC_CHECK_HEADERS_ONCE([fnmatch.h]) + gl_CHECK_NEXT_HEADERS([fnmatch.h]) + + dnl Persuade glibc <fnmatch.h> to declare FNM_CASEFOLD etc. + dnl This is only needed if gl_fnmatch_required = GNU. It would be possible + dnl to avoid this dependency for gl_FUNC_FNMATCH_POSIX by putting + dnl gl_FUNC_FNMATCH_GNU into a separate .m4 file. + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + if test $ac_cv_header_fnmatch_h = yes; then + HAVE_FNMATCH_H=1 + else + HAVE_FNMATCH_H=0 + fi + AC_SUBST([HAVE_FNMATCH_H]) + + m4_ifdef([gl_POSIXCHECK], + [FNMATCH_H=fnmatch.h], + [FNMATCH_H='' + if m4_ifdef([gl_ANSI_CXX], [test "$CXX" != no], [false]); then + dnl Override <fnmatch.h> always, to support the C++ GNULIB_NAMESPACE. + FNMATCH_H=fnmatch.h + else + if test $ac_cv_header_fnmatch_h != yes; then + dnl Provide a substitute <fnmatch.h> file. + FNMATCH_H=fnmatch.h + fi + fi + ]) + AC_SUBST([FNMATCH_H]) + AM_CONDITIONAL([GL_GENERATE_FNMATCH_H], [test -n "$FNMATCH_H"]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[#include <fnmatch.h> + ]], + [fnmatch]) +]) + +dnl Unconditionally enables the replacement of <fnmatch.h>. +AC_DEFUN([gl_REPLACE_FNMATCH_H], +[ + AC_REQUIRE([gl_FNMATCH_H_DEFAULTS]) + FNMATCH_H='fnmatch.h' + AM_CONDITIONAL([GL_GENERATE_FNMATCH_H], [test -n "$FNMATCH_H"]) +]) + +AC_DEFUN([gl_FNMATCH_MODULE_INDICATOR], +[ + dnl Use AC_REQUIRE here, so that the default settings are expanded once only. + AC_REQUIRE([gl_FNMATCH_H_DEFAULTS]) + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +AC_DEFUN([gl_FNMATCH_H_DEFAULTS], +[ + GNULIB_FNMATCH=0; AC_SUBST([GNULIB_FNMATCH]) + dnl Assume POSIX behavior unless another module says otherwise. + HAVE_FNMATCH=1; AC_SUBST([HAVE_FNMATCH]) + REPLACE_FNMATCH=0; AC_SUBST([REPLACE_FNMATCH]) +]) diff --git a/gnulib/import/m4/fpieee.m4 b/gnulib/import/m4/fpieee.m4 index e11ac9f09c1..ea1d5dad4a8 100644 --- a/gnulib/import/m4/fpieee.m4 +++ b/gnulib/import/m4/fpieee.m4 @@ -1,5 +1,5 @@ # fpieee.m4 serial 2 -*- coding: utf-8 -*- -dnl Copyright (C) 2007, 2009-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2007, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -33,7 +33,7 @@ AC_DEFUN([gl_FP_IEEE], alpha*) # On Alpha systems, a compiler option provides the behaviour. # See the ieee(3) manual page, also available at - # <http://h30097.www3.hp.com/docs/base_doc/DOCUMENTATION/V51B_HTML/MAN/MAN3/0600____.HTM> + # <https://backdrift.org/man/tru64/man3/ieee.3.html> if test -n "$GCC"; then # GCC has the option -mieee. # For full IEEE compliance (rarely needed), use option -mieee-with-inexact. diff --git a/gnulib/import/m4/frexp.m4 b/gnulib/import/m4/frexp.m4 index 23f5821677e..990fce6caf0 100644 --- a/gnulib/import/m4/frexp.m4 +++ b/gnulib/import/m4/frexp.m4 @@ -1,5 +1,5 @@ -# frexp.m4 serial 15 -dnl Copyright (C) 2007-2016 Free Software Foundation, Inc. +# frexp.m4 serial 16 +dnl Copyright (C) 2007-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -164,8 +164,17 @@ int main() [gl_cv_func_frexp_works=yes], [gl_cv_func_frexp_works=no], [case "$host_os" in - netbsd* | irix* | mingw*) gl_cv_func_frexp_works="guessing no";; - *) gl_cv_func_frexp_works="guessing yes";; + netbsd* | irix*) gl_cv_func_frexp_works="guessing no" ;; + mingw*) # Guess yes with MSVC, no with mingw. + AC_EGREP_CPP([Good], [ +#ifdef _MSC_VER + Good +#endif + ], + [gl_cv_func_frexp_works="guessing yes"], + [gl_cv_func_frexp_works="guessing no"]) + ;; + *) gl_cv_func_frexp_works="guessing yes" ;; esac ]) ]) diff --git a/gnulib/import/m4/frexpl.m4 b/gnulib/import/m4/frexpl.m4 index 0bc6afee31a..53eed55c0e4 100644 --- a/gnulib/import/m4/frexpl.m4 +++ b/gnulib/import/m4/frexpl.m4 @@ -1,5 +1,5 @@ -# frexpl.m4 serial 20 -dnl Copyright (C) 2007-2016 Free Software Foundation, Inc. +# frexpl.m4 serial 21 +dnl Copyright (C) 2007-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -131,7 +131,7 @@ AC_DEFUN([gl_FUNC_FREXPL_WORKS], # undef LDBL_MIN_EXP # define LDBL_MIN_EXP (-16381) #endif -#if defined __i386__ && defined __FreeBSD__ +#if defined __i386__ && (defined __FreeBSD__ || defined __DragonFly__) # undef LDBL_MIN_EXP # define LDBL_MIN_EXP (-16381) #endif diff --git a/gnulib/import/m4/fstat.m4 b/gnulib/import/m4/fstat.m4 index 29f9b81654a..2a59c8ff406 100644 --- a/gnulib/import/m4/fstat.m4 +++ b/gnulib/import/m4/fstat.m4 @@ -1,22 +1,22 @@ -# fstat.m4 serial 4 -dnl Copyright (C) 2011-2016 Free Software Foundation, Inc. +# fstat.m4 serial 6 +dnl Copyright (C) 2011-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_FSTAT], [ + AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) - AC_REQUIRE([gl_MSVC_INVAL]) - if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then - REPLACE_FSTAT=1 - fi - - AC_REQUIRE([gl_HEADER_SYS_STAT_H]) - if test $WINDOWS_64_BIT_ST_SIZE = 1; then - REPLACE_FSTAT=1 - fi + case "$host_os" in + mingw* | solaris*) + dnl On MinGW, the original stat() returns st_atime, st_mtime, + dnl st_ctime values that are affected by the time zone. + dnl Solaris stat can return a negative tv_nsec. + REPLACE_FSTAT=1 + ;; + esac dnl Replace fstat() for supporting the gnulib-defined open() on directories. m4_ifdef([gl_FUNC_FCHDIR], [ @@ -32,5 +32,8 @@ AC_DEFUN([gl_FUNC_FSTAT], ]) ]) -# Prerequisites of lib/fstat.c. -AC_DEFUN([gl_PREREQ_FSTAT], [:]) +# Prerequisites of lib/fstat.c and lib/stat-w32.c. +AC_DEFUN([gl_PREREQ_FSTAT], [ + AC_REQUIRE([gl_HEADER_SYS_STAT_H]) + : +]) diff --git a/gnulib/import/m4/fstatat.m4 b/gnulib/import/m4/fstatat.m4 index 84177f02cf0..489a55a3151 100644 --- a/gnulib/import/m4/fstatat.m4 +++ b/gnulib/import/m4/fstatat.m4 @@ -1,5 +1,5 @@ -# fstatat.m4 serial 3 -dnl Copyright (C) 2004-2016 Free Software Foundation, Inc. +# fstatat.m4 serial 4 +dnl Copyright (C) 2004-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -13,14 +13,14 @@ AC_DEFUN([gl_FUNC_FSTATAT], AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_REQUIRE([gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK]) - AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_REQUIRE([AC_CANONICAL_HOST]) AC_CHECK_FUNCS_ONCE([fstatat]) if test $ac_cv_func_fstatat = no; then HAVE_FSTATAT=0 else dnl Test for an AIX 7.1 bug; see - dnl <http://lists.gnu.org/archive/html/bug-tar/2011-09/msg00015.html>. + dnl <https://lists.gnu.org/r/bug-tar/2011-09/msg00015.html>. AC_CACHE_CHECK([whether fstatat (..., 0) works], [gl_cv_func_fstatat_zero_flag], [AC_RUN_IFELSE( @@ -46,15 +46,20 @@ AC_DEFUN([gl_FUNC_FSTATAT], case $gl_cv_func_fstatat_zero_flag+$gl_cv_func_lstat_dereferences_slashed_symlink in *yes+*yes) ;; - *) REPLACE_FSTATAT=1 - case $gl_cv_func_fstatat_zero_flag in - *yes) + *) REPLACE_FSTATAT=1 ;; + esac + + case $host_os in + solaris*) + REPLACE_FSTATAT=1 ;; + esac + + case $REPLACE_FSTATAT,$gl_cv_func_fstatat_zero_flag in + 1,*yes) AC_DEFINE([HAVE_WORKING_FSTATAT_ZERO_FLAG], [1], [Define to 1 if fstatat (..., 0) works. For example, it does not work in AIX 7.1.]) ;; - esac - ;; esac fi ]) diff --git a/gnulib/import/m4/getcwd-abort-bug.m4 b/gnulib/import/m4/getcwd-abort-bug.m4 index b73f47430b6..7227f08c354 100644 --- a/gnulib/import/m4/getcwd-abort-bug.m4 +++ b/gnulib/import/m4/getcwd-abort-bug.m4 @@ -1,9 +1,9 @@ -# serial 7 +# serial 11 # Determine whether getcwd aborts when the length of the working directory # name is unusually large. Any length between 4k and 16k trigger the bug # when using glibc-2.4.90-9 or older. -# Copyright (C) 2006, 2009-2016 Free Software Foundation, Inc. +# Copyright (C) 2006, 2009-2019 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. @@ -13,12 +13,19 @@ # gl_FUNC_GETCWD_ABORT_BUG([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]) AC_DEFUN([gl_FUNC_GETCWD_ABORT_BUG], [ + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CHECK_DECLS_ONCE([getcwd]) AC_CHECK_HEADERS_ONCE([unistd.h]) AC_REQUIRE([gl_PATHMAX_SNIPPET_PREREQ]) - AC_CHECK_FUNCS([getpagesize]) + + gl_CHECK_FUNC_GETPAGESIZE + if test $gl_cv_func_getpagesize = yes; then + AC_DEFINE_UNQUOTED([HAVE_GETPAGESIZE], [1], + [Define to 1 if the system has the 'getpagesize' function.]) + fi + AC_CACHE_CHECK([whether getcwd aborts when 4k < cwd_length < 16k], - gl_cv_func_getcwd_abort_bug, + [gl_cv_func_getcwd_abort_bug], [# Remove any remnants of a previous test. rm -rf confdir-14B--- # Arrange for deletion of the temporary directory this test creates. @@ -121,20 +128,34 @@ main () return fail; } ]])], - [gl_cv_func_getcwd_abort_bug=no], - [dnl An abort will provoke an exit code of something like 134 (128 + 6). - dnl An exit code of 4 can also occur (in OpenBSD 4.9, NetBSD 5.1 for - dnl example): getcwd (NULL, 0) fails rather than returning a string - dnl longer than PATH_MAX. This may be POSIX compliant (in some - dnl interpretations of POSIX). But gnulib's getcwd module wants to - dnl provide a non-NULL value in this case. - ret=$? - if test $ret -ge 128 || test $ret = 4; then - gl_cv_func_getcwd_abort_bug=yes - else - gl_cv_func_getcwd_abort_bug=no - fi], - [gl_cv_func_getcwd_abort_bug=yes]) - ]) - AS_IF([test $gl_cv_func_getcwd_abort_bug = yes], [$1], [$2]) + [gl_cv_func_getcwd_abort_bug=no], + [dnl An abort will provoke an exit code of something like 134 (128 + 6). + dnl An exit code of 4 can also occur (in OpenBSD 4.9, NetBSD 5.1 for + dnl example): getcwd (NULL, 0) fails rather than returning a string + dnl longer than PATH_MAX. This may be POSIX compliant (in some + dnl interpretations of POSIX). But gnulib's getcwd module wants to + dnl provide a non-NULL value in this case. + ret=$? + if test $ret -ge 128 || test $ret = 4; then + gl_cv_func_getcwd_abort_bug=yes + else + gl_cv_func_getcwd_abort_bug=no + fi + ], + [case "$host_os" in + # Guess no on musl systems. + *-musl*) gl_cv_func_getcwd_abort_bug="guessing no" ;; + # Guess yes otherwise, even on glibc systems. + *) gl_cv_func_getcwd_abort_bug="guessing yes" + esac + ]) + ]) + case "$gl_cv_func_getcwd_abort_bug" in + *yes) + $1 + ;; + *) + $2 + ;; + esac ]) diff --git a/gnulib/import/m4/getcwd-path-max.m4 b/gnulib/import/m4/getcwd-path-max.m4 index 90bbc77dea1..95a55bef3a6 100644 --- a/gnulib/import/m4/getcwd-path-max.m4 +++ b/gnulib/import/m4/getcwd-path-max.m4 @@ -1,4 +1,4 @@ -# serial 19 +# serial 23 # Check for several getcwd bugs with long file names. # If so, arrange to compile the wrapper function. @@ -6,7 +6,7 @@ # I've heard that this is due to a Linux kernel bug, and that it has # been fixed between 2.4.21-pre3 and 2.4.21-pre4. -# Copyright (C) 2003-2007, 2009-2016 Free Software Foundation, Inc. +# Copyright (C) 2003-2007, 2009-2019 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. @@ -21,7 +21,7 @@ AC_DEFUN([gl_FUNC_GETCWD_PATH_MAX], AC_CHECK_HEADERS_ONCE([unistd.h]) AC_REQUIRE([gl_PATHMAX_SNIPPET_PREREQ]) AC_CACHE_CHECK([whether getcwd handles long file names properly], - gl_cv_func_getcwd_path_max, + [gl_cv_func_getcwd_path_max], [# Arrange for deletion of the temporary directory this test creates. ac_clean_files="$ac_clean_files confdir3" dnl Please keep this in sync with tests/test-getcwd.c. @@ -111,12 +111,20 @@ main () /* If mkdir or chdir fails, it could be that this system cannot create any file with an absolute name longer than PATH_MAX, such as cygwin. If so, leave fail as 0, because the current working directory can't - be too long for getcwd if it can't even be created. For other - errors, be pessimistic and consider that as a failure, too. */ + be too long for getcwd if it can't even be created. On Linux with + the 9p file system, mkdir fails with error EINVAL when cwd_len gets + too long; ignore this failure because the getcwd() system call + produces good results whereas the gnulib substitute calls getdents64 + which fails with error EPROTO. + For other errors, be pessimistic and consider that as a failure, + too. */ if (mkdir (DIR_NAME, S_IRWXU) < 0 || chdir (DIR_NAME) < 0) { if (! (errno == ERANGE || is_ENAMETOOLONG (errno))) - fail = 20; + #ifdef __linux__ + if (! (errno == EINVAL)) + #endif + fail = 20; break; } @@ -202,28 +210,28 @@ main () #endif } ]])], - [gl_cv_func_getcwd_path_max=yes], - [case $? in - 10|11|12) gl_cv_func_getcwd_path_max='no, but it is partly working';; - 31) gl_cv_func_getcwd_path_max='no, it has the AIX bug';; - 32) gl_cv_func_getcwd_path_max='yes, but with shorter paths';; - *) gl_cv_func_getcwd_path_max=no;; - esac], - [# Cross-compilation guesses: - case "$host_os" in - aix*) # On AIX, it has the AIX bug. - gl_cv_func_getcwd_path_max='no, it has the AIX bug' ;; - gnu*) # On Hurd, it is 'yes'. - gl_cv_func_getcwd_path_max=yes ;; - linux* | kfreebsd*) - # On older Linux+glibc it's 'no, but it is partly working', - # on newer Linux+glibc it's 'yes'. - # On Linux+musl libc, it's 'no, but it is partly working'. - # On kFreeBSD+glibc, it's 'no, but it is partly working'. - gl_cv_func_getcwd_path_max='no, but it is partly working' ;; - *) # If we don't know, assume the worst. - gl_cv_func_getcwd_path_max=no ;; - esac + [gl_cv_func_getcwd_path_max=yes], + [case $? in + 10|11|12) gl_cv_func_getcwd_path_max='no, but it is partly working';; + 31) gl_cv_func_getcwd_path_max='no, it has the AIX bug';; + 32) gl_cv_func_getcwd_path_max='yes, but with shorter paths';; + *) gl_cv_func_getcwd_path_max=no;; + esac], + [# Cross-compilation guesses: + case "$host_os" in + aix*) # On AIX, it has the AIX bug. + gl_cv_func_getcwd_path_max='guessing no, it has the AIX bug' ;; + gnu*) # On Hurd, it is 'yes'. + gl_cv_func_getcwd_path_max='guessing yes' ;; + linux* | kfreebsd*) + # On older Linux+glibc it's 'no, but it is partly working', + # on newer Linux+glibc it's 'yes'. + # On Linux+musl libc, it's 'no, but it is partly working'. + # On kFreeBSD+glibc, it's 'no, but it is partly working'. + gl_cv_func_getcwd_path_max='guessing no, but it is partly working' ;; + *) # If we don't know, obey --enable-cross-guesses. + gl_cv_func_getcwd_path_max="$gl_cross_guess_normal" ;; + esac + ]) ]) - ]) ]) diff --git a/gnulib/import/m4/getcwd.m4 b/gnulib/import/m4/getcwd.m4 index 566c3c13ea8..3b3f7554587 100644 --- a/gnulib/import/m4/getcwd.m4 +++ b/gnulib/import/m4/getcwd.m4 @@ -1,12 +1,12 @@ # getcwd.m4 - check for working getcwd that is compatible with glibc -# Copyright (C) 2001, 2003-2007, 2009-2016 Free Software Foundation, Inc. +# Copyright (C) 2001, 2003-2007, 2009-2019 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # Written by Paul Eggert. -# serial 13 +# serial 18 AC_DEFUN([gl_FUNC_GETCWD_NULL], [ @@ -25,7 +25,7 @@ AC_DEFUN([gl_FUNC_GETCWD_NULL], char *getcwd (); # endif ]], [[ -#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ +#if defined _WIN32 && ! defined __CYGWIN__ /* mingw cwd does not start with '/', but getcwd does allocate. However, mingw fails to honor non-zero size. */ #else @@ -37,9 +37,9 @@ AC_DEFUN([gl_FUNC_GETCWD_NULL], if (! f) return 2; if (f[0] != '/') - return 3; + { free (f); return 3; } if (f[1] != '\0') - return 4; + { free (f); return 4; } free (f); return 0; } @@ -48,12 +48,14 @@ AC_DEFUN([gl_FUNC_GETCWD_NULL], [gl_cv_func_getcwd_null=yes], [gl_cv_func_getcwd_null=no], [[case "$host_os" in - # Guess yes on glibc systems. - *-gnu*) gl_cv_func_getcwd_null="guessing yes";; - # Guess yes on Cygwin. - cygwin*) gl_cv_func_getcwd_null="guessing yes";; - # If we don't know, assume the worst. - *) gl_cv_func_getcwd_null="guessing no";; + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_getcwd_null="guessing yes";; + # Guess yes on musl systems. + *-musl*) gl_cv_func_getcwd_null="guessing yes";; + # Guess yes on Cygwin. + cygwin*) gl_cv_func_getcwd_null="guessing yes";; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_getcwd_null="$gl_cross_guess_normal";; esac ]])]) ]) @@ -125,7 +127,7 @@ AC_DEFUN([gl_FUNC_GETCWD], dnl Define HAVE_MINIMALLY_WORKING_GETCWD and HAVE_PARTLY_WORKING_GETCWD dnl if appropriate. case "$gl_cv_func_getcwd_path_max" in - "no"|"no, it has the AIX bug") ;; + *"no" | *"no, it has the AIX bug") ;; *) AC_DEFINE([HAVE_MINIMALLY_WORKING_GETCWD], [1], [Define to 1 if getcwd minimally works, that is, its result can be @@ -133,12 +135,12 @@ AC_DEFUN([gl_FUNC_GETCWD], ;; esac case "$gl_cv_func_getcwd_path_max" in - "no, but it is partly working") + *"no, but it is partly working") AC_DEFINE([HAVE_PARTLY_WORKING_GETCWD], [1], [Define to 1 if getcwd works, except it sometimes fails when it shouldn't, setting errno to ERANGE, ENAMETOOLONG, or ENOENT.]) ;; - "yes, but with shorter paths") + *"yes, but with shorter paths") AC_DEFINE([HAVE_GETCWD_SHORTER], [1], [Define to 1 if getcwd works, but with shorter paths than is generally tested with the replacement.]) diff --git a/gnulib/import/m4/getdtablesize.m4 b/gnulib/import/m4/getdtablesize.m4 index 1bf4db043e6..96aa241b192 100644 --- a/gnulib/import/m4/getdtablesize.m4 +++ b/gnulib/import/m4/getdtablesize.m4 @@ -1,5 +1,5 @@ -# getdtablesize.m4 serial 6 -dnl Copyright (C) 2008-2016 Free Software Foundation, Inc. +# getdtablesize.m4 serial 7 +dnl Copyright (C) 2008-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -12,29 +12,43 @@ AC_DEFUN([gl_FUNC_GETDTABLESIZE], AC_CHECK_DECLS_ONCE([getdtablesize]) if test $ac_cv_func_getdtablesize = yes && test $ac_cv_have_decl_getdtablesize = yes; then - # Cygwin 1.7.25 automatically increases the RLIMIT_NOFILE soft limit - # up to an unchangeable hard limit; all other platforms correctly - # require setrlimit before getdtablesize() can report a larger value. AC_CACHE_CHECK([whether getdtablesize works], [gl_cv_func_getdtablesize_works], - [AC_RUN_IFELSE([ - AC_LANG_PROGRAM([[#include <unistd.h>]], - [int size = getdtablesize(); - if (dup2 (0, getdtablesize()) != -1) - return 1; - if (size != getdtablesize()) - return 2; - ])], - [gl_cv_func_getdtablesize_works=yes], - [gl_cv_func_getdtablesize_works=no], - [case "$host_os" in - cygwin*) # on cygwin 1.5.25, getdtablesize() automatically grows - gl_cv_func_getdtablesize_works="guessing no" ;; - *) gl_cv_func_getdtablesize_works="guessing yes" ;; - esac]) + [dnl There are two concepts: the "maximum possible file descriptor value + 1" + dnl and the "maximum number of open file descriptors in a process". + dnl Per SUSv2 and POSIX, getdtablesize() should return the first one. + dnl On most platforms, the first and the second concept are the same. + dnl On OpenVMS, however, they are different and getdtablesize() returns + dnl the second one; thus the test below fails. But we don't care + dnl because there's no good way to write a replacement getdtablesize(). + case "$host_os" in + vms*) gl_cv_func_getdtablesize_works="no (limitation)" ;; + *) + dnl Cygwin 1.7.25 automatically increases the RLIMIT_NOFILE soft + dnl limit up to an unchangeable hard limit; all other platforms + dnl correctly require setrlimit before getdtablesize() can report + dnl a larger value. + AC_RUN_IFELSE([ + AC_LANG_PROGRAM([[#include <unistd.h>]], + [int size = getdtablesize(); + if (dup2 (0, getdtablesize()) != -1) + return 1; + if (size != getdtablesize()) + return 2; + ])], + [gl_cv_func_getdtablesize_works=yes], + [gl_cv_func_getdtablesize_works=no], + [case "$host_os" in + cygwin*) # on cygwin 1.5.25, getdtablesize() automatically grows + gl_cv_func_getdtablesize_works="guessing no" ;; + *) gl_cv_func_getdtablesize_works="guessing yes" ;; + esac + ]) + ;; + esac ]) case "$gl_cv_func_getdtablesize_works" in - *yes) ;; + *yes | "no (limitation)") ;; *) REPLACE_GETDTABLESIZE=1 ;; esac else diff --git a/gnulib/import/m4/getlogin.m4 b/gnulib/import/m4/getlogin.m4 new file mode 100644 index 00000000000..c13d2e0be9d --- /dev/null +++ b/gnulib/import/m4/getlogin.m4 @@ -0,0 +1,32 @@ +# getlogin.m4 serial 5 +dnl Copyright (C) 2010-2019 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_GETLOGIN], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + AC_CHECK_DECLS_ONCE([getlogin]) + if test $ac_cv_have_decl_getlogin = no; then + HAVE_DECL_GETLOGIN=0 + fi + AC_CHECK_FUNCS_ONCE([getlogin]) + if test $ac_cv_func_getlogin = no; then + HAVE_GETLOGIN=0 + fi +]) + +dnl Determines the library needed by the implementation of the +dnl getlogin and getlogin_r functions. +AC_DEFUN([gl_LIB_GETLOGIN], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + case $host_os in + mingw*) + LIB_GETLOGIN='-ladvapi32' ;; + *) + LIB_GETLOGIN= ;; + esac + AC_SUBST([LIB_GETLOGIN]) +]) diff --git a/gnulib/import/m4/getlogin_r.m4 b/gnulib/import/m4/getlogin_r.m4 index 80f82f4f926..aff7086e3ad 100644 --- a/gnulib/import/m4/getlogin_r.m4 +++ b/gnulib/import/m4/getlogin_r.m4 @@ -1,6 +1,6 @@ -#serial 11 +#serial 12 -# Copyright (C) 2005-2007, 2009-2016 Free Software Foundation, Inc. +# Copyright (C) 2005-2007, 2009-2019 Free Software Foundation, Inc. # # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, @@ -30,8 +30,8 @@ AC_DEFUN([gl_FUNC_GETLOGIN_R], HAVE_GETLOGIN_R=0 else HAVE_GETLOGIN_R=1 - dnl On OSF/1 5.1, getlogin_r returns a truncated result if the buffer is - dnl not large enough. + dnl On Mac OS X 10.12 and OSF/1 5.1, getlogin_r returns a truncated result + dnl if the buffer is not large enough. AC_REQUIRE([AC_CANONICAL_HOST]) AC_CACHE_CHECK([whether getlogin_r works with small buffers], [gl_cv_func_getlogin_r_works], @@ -39,15 +39,16 @@ AC_DEFUN([gl_FUNC_GETLOGIN_R], dnl Initial guess, used when cross-compiling. changequote(,)dnl case "$host_os" in - # Guess no on OSF/1. - osf*) gl_cv_func_getlogin_r_works="guessing no" ;; - # Guess yes otherwise. - *) gl_cv_func_getlogin_r_works="guessing yes" ;; + # Guess no on Mac OS X, OSF/1. + darwin* | osf*) gl_cv_func_getlogin_r_works="guessing no" ;; + # Guess yes otherwise. + *) gl_cv_func_getlogin_r_works="guessing yes" ;; esac changequote([,])dnl AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include <stddef.h> +#include <string.h> #include <unistd.h> #if !HAVE_DECL_GETLOGIN_R extern @@ -63,16 +64,19 @@ main (void) char buf[100]; if (getlogin_r (buf, 0) == 0) - result |= 16; + result |= 1; if (getlogin_r (buf, 1) == 0) - result |= 17; + result |= 2; + if (getlogin_r (buf, 100) == 0) + { + size_t n = strlen (buf); + if (getlogin_r (buf, n) == 0) + result |= 4; + } return result; }]])], [gl_cv_func_getlogin_r_works=yes], - [case $? in - 16 | 17) gl_cv_func_getlogin_r_works=no ;; - esac - ], + [gl_cv_func_getlogin_r_works=no], [:]) ]) case "$gl_cv_func_getlogin_r_works" in diff --git a/gnulib/import/m4/getpagesize.m4 b/gnulib/import/m4/getpagesize.m4 new file mode 100644 index 00000000000..546c3ad11eb --- /dev/null +++ b/gnulib/import/m4/getpagesize.m4 @@ -0,0 +1,49 @@ +# getpagesize.m4 serial 10 +dnl Copyright (C) 2002, 2004-2005, 2007, 2009-2019 Free Software Foundation, +dnl Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_GETPAGESIZE], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) + gl_CHECK_FUNC_GETPAGESIZE + if test $gl_cv_func_getpagesize = no; then + HAVE_GETPAGESIZE=0 + AC_CHECK_HEADERS([OS.h]) + if test $ac_cv_header_OS_h = yes; then + HAVE_OS_H=1 + fi + AC_CHECK_HEADERS([sys/param.h]) + if test $ac_cv_header_sys_param_h = yes; then + HAVE_SYS_PARAM_H=1 + fi + fi + case "$host_os" in + mingw*) + REPLACE_GETPAGESIZE=1 + ;; + esac + dnl Also check whether it's declared. + dnl mingw has getpagesize() in libgcc.a but doesn't declare it. + AC_CHECK_DECL([getpagesize], , [HAVE_DECL_GETPAGESIZE=0]) +]) + +dnl Tests whether the function getpagesize() exists. +dnl Sets gl_cv_func_getpagesize. +AC_DEFUN([gl_CHECK_FUNC_GETPAGESIZE], +[ + dnl We can't use AC_CHECK_FUNC here, because getpagesize() is defined as a + dnl static inline function when compiling for Android 4.4 or older. + AC_CACHE_CHECK([for getpagesize], [gl_cv_func_getpagesize], + [AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[#include <unistd.h>]], + [[return getpagesize();]]) + ], + [gl_cv_func_getpagesize=yes], + [gl_cv_func_getpagesize=no]) + ]) +]) diff --git a/gnulib/import/m4/getprogname.m4 b/gnulib/import/m4/getprogname.m4 index f027037fc6b..4a96d066aa3 100644 --- a/gnulib/import/m4/getprogname.m4 +++ b/gnulib/import/m4/getprogname.m4 @@ -1,6 +1,6 @@ # getprogname.m4 - check for getprogname or replacements for it -# Copyright (C) 2016 Free Software Foundation, Inc. +# Copyright (C) 2016-2019 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/gettimeofday.m4 b/gnulib/import/m4/gettimeofday.m4 index 4ae5d63fe3e..7eebabd9c70 100644 --- a/gnulib/import/m4/gettimeofday.m4 +++ b/gnulib/import/m4/gettimeofday.m4 @@ -1,6 +1,6 @@ -# serial 21 +# serial 27 -# Copyright (C) 2001-2003, 2005, 2007, 2009-2016 Free Software Foundation, Inc. +# Copyright (C) 2001-2003, 2005, 2007, 2009-2019 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. @@ -9,9 +9,10 @@ dnl From Jim Meyering. AC_DEFUN([gl_FUNC_GETTIMEOFDAY], [ + AC_REQUIRE([gl_HEADER_SYS_TIME_H_DEFAULTS]) AC_REQUIRE([AC_C_RESTRICT]) + AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([gl_HEADER_SYS_TIME_H]) - AC_REQUIRE([gl_HEADER_SYS_TIME_H_DEFAULTS]) AC_CHECK_FUNCS_ONCE([gettimeofday]) gl_gettimeofday_timezone=void @@ -54,19 +55,11 @@ int gettimeofday (struct timeval *restrict, struct timezone *restrict); if test $REPLACE_STRUCT_TIMEVAL = 1; then REPLACE_GETTIMEOFDAY=1 fi - m4_ifdef([gl_FUNC_TZSET_CLOBBER], [ - gl_FUNC_TZSET_CLOBBER - case "$gl_cv_func_tzset_clobber" in - *yes) - REPLACE_GETTIMEOFDAY=1 - gl_GETTIMEOFDAY_REPLACE_LOCALTIME - AC_DEFINE([tzset], [rpl_tzset], - [Define to rpl_tzset if the wrapper function should be used.]) - AC_DEFINE([TZSET_CLOBBERS_LOCALTIME], [1], - [Define if tzset clobbers localtime's static buffer.]) - ;; - esac - ]) + dnl On mingw, the original gettimeofday has only a precision of 15.6 + dnl milliseconds. So override it. + case "$host_os" in + mingw*) REPLACE_GETTIMEOFDAY=1 ;; + esac fi AC_DEFINE_UNQUOTED([GETTIMEOFDAY_TIMEZONE], [$gl_gettimeofday_timezone], [Define this to 'void' or 'struct timezone' to match the system's @@ -85,6 +78,7 @@ AC_DEFUN([gl_FUNC_GETTIMEOFDAY_CLOBBER], [ AC_REQUIRE([gl_HEADER_SYS_TIME_H]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_REQUIRE([gl_LOCALTIME_BUFFER_DEFAULTS]) AC_CACHE_CHECK([whether gettimeofday clobbers localtime buffer], [gl_cv_func_gettimeofday_clobber], @@ -109,30 +103,26 @@ AC_DEFUN([gl_FUNC_GETTIMEOFDAY_CLOBBER], [gl_cv_func_gettimeofday_clobber=yes], [# When cross-compiling: case "$host_os" in - # Guess all is fine on glibc systems. - *-gnu*) gl_cv_func_gettimeofday_clobber="guessing no" ;; - # If we don't know, assume the worst. - *) gl_cv_func_gettimeofday_clobber="guessing yes" ;; + # Guess all is fine on glibc systems. + *-gnu* | gnu*) gl_cv_func_gettimeofday_clobber="guessing no" ;; + # Guess all is fine on musl systems. + *-musl*) gl_cv_func_gettimeofday_clobber="guessing no" ;; + # Guess no on native Windows. + mingw*) gl_cv_func_gettimeofday_clobber="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_gettimeofday_clobber="$gl_cross_guess_inverted" ;; esac ])]) case "$gl_cv_func_gettimeofday_clobber" in *yes) REPLACE_GETTIMEOFDAY=1 - gl_GETTIMEOFDAY_REPLACE_LOCALTIME AC_DEFINE([GETTIMEOFDAY_CLOBBERS_LOCALTIME], [1], [Define if gettimeofday clobbers the localtime buffer.]) + gl_LOCALTIME_BUFFER_NEEDED ;; esac ]) -AC_DEFUN([gl_GETTIMEOFDAY_REPLACE_LOCALTIME], [ - REPLACE_GMTIME=1 - REPLACE_LOCALTIME=1 -]) - # Prerequisites of lib/gettimeofday.c. -AC_DEFUN([gl_PREREQ_GETTIMEOFDAY], [ - AC_CHECK_HEADERS([sys/timeb.h]) - AC_CHECK_FUNCS([_ftime]) -]) +AC_DEFUN([gl_PREREQ_GETTIMEOFDAY], [:]) diff --git a/gnulib/import/m4/glibc21.m4 b/gnulib/import/m4/glibc21.m4 deleted file mode 100644 index dafebf5017d..00000000000 --- a/gnulib/import/m4/glibc21.m4 +++ /dev/null @@ -1,34 +0,0 @@ -# glibc21.m4 serial 5 -dnl Copyright (C) 2000-2002, 2004, 2008, 2010-2016 Free Software Foundation, -dnl Inc. -dnl This file is free software; the Free Software Foundation -dnl gives unlimited permission to copy and/or distribute it, -dnl with or without modifications, as long as this notice is preserved. - -# Test for the GNU C Library, version 2.1 or newer, or uClibc. -# From Bruno Haible. - -AC_DEFUN([gl_GLIBC21], - [ - AC_CACHE_CHECK([whether we are using the GNU C Library >= 2.1 or uClibc], - [ac_cv_gnu_library_2_1], - [AC_EGREP_CPP([Lucky], - [ -#include <features.h> -#ifdef __GNU_LIBRARY__ - #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2) - Lucky GNU user - #endif -#endif -#ifdef __UCLIBC__ - Lucky user -#endif - ], - [ac_cv_gnu_library_2_1=yes], - [ac_cv_gnu_library_2_1=no]) - ] - ) - AC_SUBST([GLIBC21]) - GLIBC21="$ac_cv_gnu_library_2_1" - ] -) diff --git a/gnulib/import/m4/glob.m4 b/gnulib/import/m4/glob.m4 index adf5fe2865c..543722c60d0 100644 --- a/gnulib/import/m4/glob.m4 +++ b/gnulib/import/m4/glob.m4 @@ -1,5 +1,5 @@ -# glob.m4 serial 14 -dnl Copyright (C) 2005-2007, 2009-2016 Free Software Foundation, Inc. +# glob.m4 serial 23 +dnl Copyright (C) 2005-2007, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -9,68 +9,81 @@ dnl with or without modifications, as long as this notice is preserved. # always include <glob.h> for the glob prototypes. AC_DEFUN([gl_GLOB], -[ GLOB_H= - AC_CHECK_HEADERS([glob.h], [], [GLOB_H=glob.h]) +[ + AC_REQUIRE([gl_GLOB_H]) + + AC_CHECK_FUNCS_ONCE([glob glob_pattern_p]) + if test $ac_cv_func_glob = no; then + HAVE_GLOB=0 + else - if test -z "$GLOB_H"; then - AC_CACHE_CHECK([for GNU glob interface version 1], - [gl_cv_gnu_glob_interface_version_1], + AC_CACHE_CHECK([for GNU glob interface version 1 or 2], + [gl_cv_gnu_glob_interface_version_1_2], [ AC_COMPILE_IFELSE([AC_LANG_SOURCE( [[#include <gnu-versions.h> -char a[_GNU_GLOB_INTERFACE_VERSION == 1 ? 1 : -1];]])], - [gl_cv_gnu_glob_interface_version_1=yes], - [gl_cv_gnu_glob_interface_version_1=no])]) - - if test "$gl_cv_gnu_glob_interface_version_1" = "no"; then - GLOB_H=glob.h +char a[_GNU_GLOB_INTERFACE_VERSION == 1 || _GNU_GLOB_INTERFACE_VERSION == 2 ? 1 : -1];]])], + [gl_cv_gnu_glob_interface_version_1_2=yes], + [gl_cv_gnu_glob_interface_version_1_2=no])]) + if test "$gl_cv_gnu_glob_interface_version_1_2" = "no"; then + REPLACE_GLOB=1 fi - fi - if test -z "$GLOB_H"; then - AC_CACHE_CHECK([whether glob lists broken symlinks], - [gl_cv_glob_lists_symlinks], -[ if ln -s conf-doesntexist conf$$-globtest 2>/dev/null; then - gl_cv_glob_lists_symlinks=maybe - else - # If we can't make a symlink, then we cannot test this issue. Be - # pessimistic about this. - gl_cv_glob_lists_symlinks=no - fi + if test $REPLACE_GLOB = 0; then + AC_CACHE_CHECK([whether glob lists broken symlinks], + [gl_cv_glob_lists_symlinks], + [if test $cross_compiling != yes; then + if ln -s conf-doesntexist conf$$-globtest 2>/dev/null; then + gl_cv_glob_lists_symlinks=maybe + else + # If we can't make a symlink, then we cannot test this issue. Be + # pessimistic about this. + gl_cv_glob_lists_symlinks=no + fi + if test $gl_cv_glob_lists_symlinks = maybe; then + AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <stddef.h> + #include <glob.h>]], + [[glob_t found; + if (glob ("conf*-globtest", 0, NULL, &found) == GLOB_NOMATCH) + return 1; + ]])], + [gl_cv_glob_lists_symlinks=yes], + [gl_cv_glob_lists_symlinks=no], + [dnl We don't get here. + : + ]) + fi + rm -f conf$$-globtest + else + gl_cv_glob_lists_symlinks="$gl_cross_guess_normal" + fi + ]) + case "$gl_cv_glob_lists_symlinks" in + *yes) ;; + *) REPLACE_GLOB=1 ;; + esac + fi - if test $gl_cv_glob_lists_symlinks = maybe; then - AC_RUN_IFELSE([ -AC_LANG_PROGRAM( -[[#include <stddef.h> -#include <glob.h>]], -[[glob_t found; -if (glob ("conf*-globtest", 0, NULL, &found) == GLOB_NOMATCH) return 1;]])], - [gl_cv_glob_lists_symlinks=yes], - [gl_cv_glob_lists_symlinks=no], [gl_cv_glob_lists_symlinks=no]) - fi]) + fi - if test $gl_cv_glob_lists_symlinks = no; then - GLOB_H=glob.h + if test $ac_cv_func_glob_pattern_p = no; then + HAVE_GLOB_PATTERN_P=0 + else + if test $REPLACE_GLOB = 1; then + REPLACE_GLOB_PATTERN_P=1 fi fi - rm -f conf$$-globtest - - AC_SUBST([GLOB_H]) - AM_CONDITIONAL([GL_GENERATE_GLOB_H], [test -n "$GLOB_H"]) + if test $HAVE_GLOB = 0 || test $REPLACE_GLOB = 1; then + gl_REPLACE_GLOB_H + fi ]) -# Prerequisites of lib/glob.*. +# Prerequisites of lib/glob.c and lib/globfree.c. AC_DEFUN([gl_PREREQ_GLOB], [ - AC_REQUIRE([gl_CHECK_TYPE_STRUCT_DIRENT_D_TYPE])dnl - AC_REQUIRE([AC_C_RESTRICT])dnl - AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])dnl - AC_CHECK_HEADERS_ONCE([sys/cdefs.h unistd.h])dnl - if test $ac_cv_header_sys_cdefs_h = yes; then - HAVE_SYS_CDEFS_H=1 - else - HAVE_SYS_CDEFS_H=0 - fi - AC_SUBST([HAVE_SYS_CDEFS_H]) - AC_CHECK_FUNCS_ONCE([fstatat getlogin_r getpwnam_r])dnl + AC_REQUIRE([gl_CHECK_TYPE_STRUCT_DIRENT_D_TYPE]) + AC_CHECK_HEADERS_ONCE([unistd.h]) + AC_CHECK_FUNCS_ONCE([getlogin_r getpwnam_r]) ]) diff --git a/gnulib/import/m4/glob_h.m4 b/gnulib/import/m4/glob_h.m4 new file mode 100644 index 00000000000..9cc29d0cee1 --- /dev/null +++ b/gnulib/import/m4/glob_h.m4 @@ -0,0 +1,72 @@ +# glob_h.m4 serial 5 +dnl Copyright (C) 2018-2019 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. + +AC_DEFUN_ONCE([gl_GLOB_H], +[ + AC_REQUIRE([gl_GLOB_H_DEFAULTS]) + m4_ifdef([gl_ANSI_CXX], [AC_REQUIRE([gl_ANSI_CXX])]) + AC_REQUIRE([AC_C_RESTRICT]) + AC_CHECK_HEADERS_ONCE([glob.h]) + gl_CHECK_NEXT_HEADERS([glob.h]) + + if test $ac_cv_header_glob_h = yes; then + HAVE_GLOB_H=1 + else + HAVE_GLOB_H=0 + fi + AC_SUBST([HAVE_GLOB_H]) + + m4_ifdef([gl_POSIXCHECK], + [GLOB_H=glob.h], + [GLOB_H='' + if m4_ifdef([gl_ANSI_CXX], [test "$CXX" != no], [false]); then + dnl Override <glob.h> always, to support the C++ GNULIB_NAMESPACE. + GLOB_H=glob.h + else + if test $ac_cv_header_glob_h != yes; then + dnl Provide a substitute <glob.h> file. + GLOB_H=glob.h + fi + fi + ]) + AC_SUBST([GLOB_H]) + AM_CONDITIONAL([GL_GENERATE_GLOB_H], [test -n "$GLOB_H"]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[#include <glob.h> + ]], + [glob globfree glob_pattern_p]) +]) + +dnl Unconditionally enables the replacement of <glob.h>. +AC_DEFUN([gl_REPLACE_GLOB_H], +[ + AC_REQUIRE([gl_GLOB_H_DEFAULTS]) + GLOB_H='glob.h' + AM_CONDITIONAL([GL_GENERATE_GLOB_H], [test -n "$GLOB_H"]) +]) + +AC_DEFUN([gl_GLOB_MODULE_INDICATOR], +[ + dnl Use AC_REQUIRE here, so that the default settings are expanded once only. + AC_REQUIRE([gl_GLOB_H_DEFAULTS]) + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +AC_DEFUN([gl_GLOB_H_DEFAULTS], +[ + GNULIB_GLOB=0; AC_SUBST([GNULIB_GLOB]) + dnl Assume POSIX and GNU behavior unless another module says otherwise. + HAVE_GLOB=1; AC_SUBST([HAVE_GLOB]) + HAVE_GLOB_PATTERN_P=1; AC_SUBST([HAVE_GLOB_PATTERN_P]) + REPLACE_GLOB=0; AC_SUBST([REPLACE_GLOB]) + REPLACE_GLOB_PATTERN_P=0; AC_SUBST([REPLACE_GLOB_PATTERN_P]) +]) diff --git a/gnulib/import/m4/gnulib-cache.m4 b/gnulib/import/m4/gnulib-cache.m4 index 80e080aed17..428f5c965f3 100644 --- a/gnulib/import/m4/gnulib-cache.m4 +++ b/gnulib/import/m4/gnulib-cache.m4 @@ -1,4 +1,4 @@ -# Copyright (C) 2002-2016 Free Software Foundation, Inc. +# Copyright (C) 2002-2019 Free Software Foundation, Inc. # # This file is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by @@ -11,7 +11,7 @@ # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License -# along with this file. If not, see <http://www.gnu.org/licenses/>. +# along with this file. If not, see <https://www.gnu.org/licenses/>. # # As a special exception to the GNU General Public License, # this file may be distributed as part of a program that @@ -27,7 +27,52 @@ # Specification in the form of a command-line invocation: -# gnulib-tool --import --lib=libgnu --source-base=import --m4-base=import/m4 --doc-base=doc --tests-base=tests --aux-dir=import/extra --no-conditional-dependencies --no-libtool --macro-prefix=gl --no-vc-files alloca canonicalize-lgpl dirent dirfd errno fnmatch-gnu frexpl getcwd glob inet_ntop inttypes limits-h lstat memchr memmem mkdir mkdtemp mkostemp pathmax rawmemchr readlink rename setenv signal-h strchrnul strerror_r-posix strstr strtok_r sys_stat time_r unistd unsetenv update-copyright wchar wctype-h +# gnulib-tool --import \ +# --lib=libgnu \ +# --source-base=import \ +# --m4-base=import/m4 \ +# --doc-base=doc \ +# --tests-base=tests \ +# --aux-dir=import/extra \ +# --no-conditional-dependencies \ +# --no-libtool \ +# --macro-prefix=gl \ +# --no-vc-files \ +# alloca \ +# canonicalize-lgpl \ +# dirent \ +# dirfd \ +# errno \ +# fnmatch-gnu \ +# frexpl \ +# getcwd \ +# glob \ +# inet_ntop \ +# inttypes \ +# limits-h \ +# lstat \ +# memchr \ +# memmem \ +# mkdir \ +# mkdtemp \ +# mkostemp \ +# pathmax \ +# rawmemchr \ +# readlink \ +# rename \ +# setenv \ +# signal-h \ +# strchrnul \ +# strerror_r-posix \ +# strstr \ +# strtok_r \ +# sys_stat \ +# time_r \ +# unistd \ +# unsetenv \ +# update-copyright \ +# wchar \ +# wctype-h # Specification in the form of a few gnulib-tool.m4 macro invocations: gl_LOCAL_DIR([]) diff --git a/gnulib/import/m4/gnulib-common.m4 b/gnulib/import/m4/gnulib-common.m4 index f8454c8a014..d8f0d3fb566 100644 --- a/gnulib/import/m4/gnulib-common.m4 +++ b/gnulib/import/m4/gnulib-common.m4 @@ -1,9 +1,11 @@ -# gnulib-common.m4 serial 36 -dnl Copyright (C) 2007-2016 Free Software Foundation, Inc. +# gnulib-common.m4 serial 46 +dnl Copyright (C) 2007-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. +AC_PREREQ([2.62]) + # gl_COMMON # is expanded unconditionally through gnulib-tool magic. AC_DEFUN([gl_COMMON], [ @@ -14,12 +16,25 @@ AC_DEFUN([gl_COMMON], [ AC_DEFUN([gl_COMMON_BODY], [ AH_VERBATIM([_Noreturn], [/* The _Noreturn keyword of C11. */ -#if ! (defined _Noreturn \ - || (defined __STDC_VERSION__ && 201112 <= __STDC_VERSION__)) -# if (3 <= __GNUC__ || (__GNUC__ == 2 && 8 <= __GNUC_MINOR__) \ - || 0x5110 <= __SUNPRO_C) +#ifndef _Noreturn +# if (defined __cplusplus \ + && ((201103 <= __cplusplus && !(__GNUC__ == 4 && __GNUC_MINOR__ == 7)) \ + || (defined _MSC_VER && 1900 <= _MSC_VER)) \ + && 0) + /* [[noreturn]] is not practically usable, because with it the syntax + extern _Noreturn void func (...); + would not be valid; such a declaration would only be valid with 'extern' + and '_Noreturn' swapped, or without the 'extern' keyword. However, some + AIX system header files and several gnulib header files use precisely + this syntax with 'extern'. */ +# define _Noreturn [[noreturn]] +# elif ((!defined __cplusplus || defined __clang__) \ + && (201112 <= (defined __STDC_VERSION__ ? __STDC_VERSION__ : 0) \ + || 4 < __GNUC__ + (7 <= __GNUC_MINOR__))) + /* _Noreturn works as-is. */ +# elif 2 < __GNUC__ + (8 <= __GNUC_MINOR__) || 0x5110 <= __SUNPRO_C # define _Noreturn __attribute__ ((__noreturn__)) -# elif defined _MSC_VER && 1200 <= _MSC_VER +# elif 1200 <= (defined _MSC_VER ? _MSC_VER : 0) # define _Noreturn __declspec (noreturn) # else # define _Noreturn @@ -72,7 +87,68 @@ AC_DEFUN([gl_COMMON_BODY], [ #else # define _GL_ATTRIBUTE_CONST /* empty */ #endif + +/* The __malloc__ attribute was added in gcc 3. */ +#if 3 <= __GNUC__ +# define _GL_ATTRIBUTE_MALLOC __attribute__ ((__malloc__)) +#else +# define _GL_ATTRIBUTE_MALLOC /* empty */ +#endif ]) + AH_VERBATIM([async_safe], +[/* The _GL_ASYNC_SAFE marker should be attached to functions that are + signal handlers (for signals other than SIGABRT, SIGPIPE) or can be + invoked from such signal handlers. Such functions have some restrictions: + * All functions that it calls should be marked _GL_ASYNC_SAFE as well, + or should be listed as async-signal-safe in POSIX + <https://pubs.opengroup.org/onlinepubs/9699919799/functions/V2_chap02.html#tag_15_04> + section 2.4.3. Note that malloc(), sprintf(), and fwrite(), in + particular, are NOT async-signal-safe. + * All memory locations (variables and struct fields) that these functions + access must be marked 'volatile'. This holds for both read and write + accesses. Otherwise the compiler might optimize away stores to and + reads from such locations that occur in the program, depending on its + data flow analysis. For example, when the program contains a loop + that is intended to inspect a variable set from within a signal handler + while (!signal_occurred) + ; + the compiler is allowed to transform this into an endless loop if the + variable 'signal_occurred' is not declared 'volatile'. + Additionally, recall that: + * A signal handler should not modify errno (except if it is a handler + for a fatal signal and ends by raising the same signal again, thus + provoking the termination of the process). If it invokes a function + that may clobber errno, it needs to save and restore the value of + errno. */ +#define _GL_ASYNC_SAFE +]) + dnl Hint which direction to take regarding cross-compilation guesses: + dnl When a user installs a program on a platform they are not intimately + dnl familiar with, --enable-cross-guesses=conservative is the appropriate + dnl choice. It implements the "If we don't know, assume the worst" principle. + dnl However, when an operating system developer (on a platform which is not + dnl yet known to gnulib) builds packages for their platform, they want to + dnl expose, not hide, possible platform bugs; in this case, + dnl --enable-cross-guesses=risky is the appropriate choice. + dnl Sets the variables + dnl gl_cross_guess_normal (to be used when 'yes' is good and 'no' is bad), + dnl gl_cross_guess_inverted (to be used when 'no' is good and 'yes' is bad). + AC_ARG_ENABLE([cross-guesses], + [AS_HELP_STRING([--enable-cross-guesses={conservative|risky}], + [specify policy for cross-compilation guesses])], + [if test "x$enableval" != xconservative && test "x$enableval" != xrisky; then + AC_MSG_WARN([invalid argument supplied to --enable-cross-guesses]) + enableval=conservative + fi + gl_cross_guesses="$enableval"], + [gl_cross_guesses=conservative]) + if test $gl_cross_guesses = risky; then + gl_cross_guess_normal="guessing yes" + gl_cross_guess_inverted="guessing no" + else + gl_cross_guess_normal="guessing no" + gl_cross_guess_inverted="guessing yes" + fi dnl Preparation for running test programs: dnl Tell glibc to write diagnostics from -D_FORTIFY_SOURCE=2 to stderr, not dnl to /dev/tty, so they can be redirected to log files. Such diagnostics @@ -207,13 +283,6 @@ AC_DEFUN([gl_FEATURES_H], AC_SUBST([HAVE_FEATURES_H]) ]) -# m4_foreach_w -# is a backport of autoconf-2.59c's m4_foreach_w. -# Remove this macro when we can assume autoconf >= 2.60. -m4_ifndef([m4_foreach_w], - [m4_define([m4_foreach_w], - [m4_foreach([$1], m4_split(m4_normalize([$2]), [ ]), [$3])])]) - # AS_VAR_IF(VAR, VALUE, [IF-MATCH], [IF-NOT-MATCH]) # ---------------------------------------------------- # Backport of autoconf-2.63b's macro. @@ -226,15 +295,14 @@ m4_ifndef([AS_VAR_IF], # Modifies the value of the shell variable CC in an attempt to make $CC # understand ISO C99 source code. # This is like AC_PROG_CC_C99, except that -# - AC_PROG_CC_C99 did not exist in Autoconf versions < 2.60, # - AC_PROG_CC_C99 does not mix well with AC_PROG_CC_STDC -# <http://lists.gnu.org/archive/html/bug-gnulib/2011-09/msg00367.html>, +# <https://lists.gnu.org/r/bug-gnulib/2011-09/msg00367.html>, # but many more packages use AC_PROG_CC_STDC than AC_PROG_CC_C99 -# <http://lists.gnu.org/archive/html/bug-gnulib/2011-09/msg00441.html>. +# <https://lists.gnu.org/r/bug-gnulib/2011-09/msg00441.html>. # Remaining problems: # - When AC_PROG_CC_STDC is invoked twice, it adds the C99 enabling options # to CC twice -# <http://lists.gnu.org/archive/html/bug-gnulib/2011-09/msg00431.html>. +# <https://lists.gnu.org/r/bug-gnulib/2011-09/msg00431.html>. # - AC_PROG_CC_STDC is likely to change now that C11 is an ISO standard. AC_DEFUN([gl_PROG_CC_C99], [ @@ -256,7 +324,8 @@ AC_DEFUN([gl_PROG_AR_RANLIB], dnl library formats. In particular, the GNU binutils programs ar and ranlib dnl produce libraries that work only with gcc, not with cc. AC_REQUIRE([AC_PROG_CC]) - AC_BEFORE([$0], [AM_PROG_AR]) + dnl The '][' hides this use from 'aclocal'. + AC_BEFORE([$0], [A][M_PROG_AR]) AC_CACHE_CHECK([for Minix Amsterdam compiler], [gl_cv_c_amsterdam_compiler], [ AC_EGREP_CPP([Amsterdam], @@ -288,7 +357,9 @@ Amsterdam dnl __ACK__. It may seem like its easier to avoid calling the macro here, dnl but we need to AC_SUBST both AR/ARFLAGS (thus those must have some good dnl default value and automake should usually know them). - m4_ifdef([AM_PROG_AR], [AM_PROG_AR], [:]) + dnl + dnl The '][' hides this use from 'aclocal'. + m4_ifdef([A][M_PROG_AR], [A][M_PROG_AR], [:]) fi dnl In case the code above has not helped with setting AR/ARFLAGS, use @@ -312,25 +383,6 @@ Amsterdam AC_SUBST([RANLIB]) ]) -# AC_PROG_MKDIR_P -# is a backport of autoconf-2.60's AC_PROG_MKDIR_P, with a fix -# for interoperability with automake-1.9.6 from autoconf-2.62. -# Remove this macro when we can assume autoconf >= 2.62 or -# autoconf >= 2.60 && automake >= 1.10. -# AC_AUTOCONF_VERSION was introduced in 2.62, so use that as the witness. -m4_ifndef([AC_AUTOCONF_VERSION],[ -m4_ifdef([AC_PROG_MKDIR_P], [ - dnl For automake-1.9.6 && autoconf < 2.62: Ensure MKDIR_P is AC_SUBSTed. - m4_define([AC_PROG_MKDIR_P], - m4_defn([AC_PROG_MKDIR_P])[ - AC_SUBST([MKDIR_P])])], [ - dnl For autoconf < 2.60: Backport of AC_PROG_MKDIR_P. - AC_DEFUN_ONCE([AC_PROG_MKDIR_P], - [AC_REQUIRE([AM_PROG_MKDIR_P])dnl defined by automake - MKDIR_P='$(mkdir_p)' - AC_SUBST([MKDIR_P])])]) -]) - # AC_C_RESTRICT # This definition is copied from post-2.69 Autoconf and overrides the # AC_C_RESTRICT macro from autoconf 2.60..2.69. It can be removed @@ -344,16 +396,16 @@ AC_DEFUN([AC_C_RESTRICT], for ac_kw in __restrict __restrict__ _Restrict restrict; do AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( - [[typedef int *int_ptr; - int foo (int_ptr $ac_kw ip) { return ip[0]; } - int bar (int [$ac_kw]); /* Catch GCC bug 14050. */ - int bar (int ip[$ac_kw]) { return ip[0]; } - ]], - [[int s[1]; - int *$ac_kw t = s; - t[0] = 0; - return foo (t) + bar (t); - ]])], + [[typedef int *int_ptr; + int foo (int_ptr $ac_kw ip) { return ip[0]; } + int bar (int [$ac_kw]); /* Catch GCC bug 14050. */ + int bar (int ip[$ac_kw]) { return ip[0]; } + ]], + [[int s[1]; + int *$ac_kw t = s; + t[0] = 0; + return foo (t) + bar (t); + ]])], [ac_cv_c_restrict=$ac_kw]) test "$ac_cv_c_restrict" != no && break done @@ -404,59 +456,3 @@ AC_DEFUN([gl_CACHE_VAL_SILENT], # AS_VAR_COPY was added in autoconf 2.63b m4_define_default([AS_VAR_COPY], [AS_LITERAL_IF([$1[]$2], [$1=$$2], [eval $1=\$$2])]) - -# AC_PROG_SED was added in autoconf 2.59b -m4_ifndef([AC_PROG_SED], -[AC_DEFUN([AC_PROG_SED], -[AC_CACHE_CHECK([for a sed that does not truncate output], ac_cv_path_SED, - [dnl ac_script should not contain more than 99 commands (for HP-UX sed), - dnl but more than about 7000 bytes, to catch a limit in Solaris 8 /usr/ucb/sed. - ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/ - for ac_i in 1 2 3 4 5 6 7; do - ac_script="$ac_script$as_nl$ac_script" - done - echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed - AS_UNSET([ac_script]) - if test -z "$SED"; then - ac_path_SED_found=false - _AS_PATH_WALK([], [ - for ac_prog in sed gsed; do - for ac_exec_ext in '' $ac_executable_extensions; do - ac_path_SED="$as_dir/$ac_prog$ac_exec_ext" - AS_EXECUTABLE_P(["$ac_path_SED"]) || continue - case `"$ac_path_SED" --version 2>&1` in - *GNU*) ac_cv_path_SED=$ac_path_SED ac_path_SED_found=:;; - *) - ac_count=0 - _AS_ECHO_N([0123456789]) >conftest.in - while : - do - cat conftest.in conftest.in >conftest.tmp - mv conftest.tmp conftest.in - cp conftest.in conftest.nl - echo >> conftest.nl - "$ac_path_SED" -f conftest.sed <conftest.nl >conftest.out 2>/dev/null || break - diff conftest.out conftest.nl >/dev/null 2>&1 || break - ac_count=`expr $ac_count + 1` - if test $ac_count -gt ${ac_path_SED_max-0}; then - # Best so far, but keep looking for better - ac_cv_path_SED=$ac_path_SED - ac_path_SED_max=$ac_count - fi - test $ac_count -gt 10 && break - done - rm -f conftest.in conftest.tmp conftest.nl conftest.out;; - esac - $ac_path_SED_found && break 3 - done - done]) - if test -z "$ac_cv_path_SED"; then - AC_ERROR([no acceptable sed could be found in \$PATH]) - fi - else - ac_cv_path_SED=$SED - fi - SED="$ac_cv_path_SED" - AC_SUBST([SED])dnl - rm -f conftest.sed -])])]) diff --git a/gnulib/import/m4/gnulib-comp.m4 b/gnulib/import/m4/gnulib-comp.m4 index 1a434d20c99..be1fd390272 100644 --- a/gnulib/import/m4/gnulib-comp.m4 +++ b/gnulib/import/m4/gnulib-comp.m4 @@ -1,5 +1,5 @@ # DO NOT EDIT! GENERATED AUTOMATICALLY! -# Copyright (C) 2002-2016 Free Software Foundation, Inc. +# Copyright (C) 2002-2019 Free Software Foundation, Inc. # # This file is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by @@ -12,7 +12,7 @@ # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License -# along with this file. If not, see <http://www.gnu.org/licenses/>. +# along with this file. If not, see <https://www.gnu.org/licenses/>. # # As a special exception to the GNU General Public License, # this file may be distributed as part of a program that @@ -49,13 +49,14 @@ AC_DEFUN([gl_EARLY], # Code from module arpa_inet: # Code from module assure: # Code from module at-internal: + # Code from module builtin-expect: + # Code from module c99: # Code from module canonicalize-lgpl: # Code from module chdir: # Code from module chdir-long: # Code from module cloexec: # Code from module close: # Code from module closedir: - # Code from module configmake: # Code from module d-ino: # Code from module d-type: # Code from module dirent: @@ -75,6 +76,7 @@ AC_DEFUN([gl_EARLY], # Code from module fcntl: # Code from module fcntl-h: # Code from module fd-hook: + # Code from module fd-safer-flag: # Code from module fdopendir: # Code from module filename: # Code from module filenamecat-lgpl: @@ -82,6 +84,7 @@ AC_DEFUN([gl_EARLY], # Code from module float: # Code from module fnmatch: # Code from module fnmatch-gnu: + # Code from module fnmatch-h: # Code from module fpieee: AC_REQUIRE([gl_FP_IEEE]) # Code from module fpucw: @@ -97,6 +100,7 @@ AC_DEFUN([gl_EARLY], # Code from module gettext-h: # Code from module gettimeofday: # Code from module glob: + # Code from module glob-h: # Code from module hard-locale: # Code from module havelib: # Code from module include_next: @@ -108,8 +112,10 @@ AC_DEFUN([gl_EARLY], # Code from module isnanl-nolibm: # Code from module largefile: AC_REQUIRE([AC_SYS_LARGEFILE]) + # Code from module libc-config: # Code from module limits-h: # Code from module localcharset: + # Code from module localtime-buffer: # Code from module lock: # Code from module lstat: # Code from module malloc-posix: @@ -146,7 +152,7 @@ AC_DEFUN([gl_EARLY], # Code from module rmdir: # Code from module same-inode: # Code from module save-cwd: - # Code from module secure_getenv: + # Code from module scratch_buffer: # Code from module setenv: # Code from module signal-h: # Code from module snippet/_Noreturn: @@ -156,6 +162,8 @@ AC_DEFUN([gl_EARLY], # Code from module socklen: # Code from module ssize_t: # Code from module stat: + # Code from module stat-time: + # Code from module std-gnu11: # Code from module stdalign: # Code from module stdbool: # Code from module stddef: @@ -190,6 +198,11 @@ AC_DEFUN([gl_EARLY], # Code from module verify: # Code from module wchar: # Code from module wctype-h: + # Code from module windows-mutex: + # Code from module windows-once: + # Code from module windows-recmutex: + # Code from module windows-rwlock: + # Code from module xalloc-oversized: ]) # This macro should be invoked from ./configure.ac, in the section @@ -212,6 +225,7 @@ AC_DEFUN([gl_INIT], gl_HEADER_ARPA_INET AC_PROG_MKDIR_P AC_LIBOBJ([openat-proc]) + gl___BUILTIN_EXPECT gl_CANONICALIZE_LGPL if test $HAVE_CANONICALIZE_FILE_NAME = 0 || test $REPLACE_CANONICALIZE_FILE_NAME = 1; then AC_LIBOBJ([canonicalize-lgpl]) @@ -236,7 +250,6 @@ AC_DEFUN([gl_INIT], AC_LIBOBJ([closedir]) fi gl_DIRENT_MODULE_INDICATOR([closedir]) - gl_CONFIGMAKE_PREP gl_CHECK_TYPE_STRUCT_DIRENT_D_INO gl_CHECK_TYPE_STRUCT_DIRENT_D_TYPE gl_DIRENT_H @@ -281,6 +294,7 @@ AC_DEFUN([gl_INIT], fi gl_FCNTL_MODULE_INDICATOR([fcntl]) gl_FCNTL_H + gl_MODULE_INDICATOR([fd-safer-flag]) gl_FUNC_FDOPENDIR if test $HAVE_FDOPENDIR = 0 || test $REPLACE_FDOPENDIR = 1; then AC_LIBOBJ([fdopendir]) @@ -297,21 +311,24 @@ AC_DEFUN([gl_INIT], AC_LIBOBJ([itold]) fi gl_FUNC_FNMATCH_POSIX - if test -n "$FNMATCH_H"; then + if test $HAVE_FNMATCH = 0 || test $REPLACE_FNMATCH = 1; then AC_LIBOBJ([fnmatch]) gl_PREREQ_FNMATCH fi + gl_FNMATCH_MODULE_INDICATOR([fnmatch]) gl_FUNC_FNMATCH_GNU - if test -n "$FNMATCH_H"; then + if test $HAVE_FNMATCH = 0 || test $REPLACE_FNMATCH = 1; then AC_LIBOBJ([fnmatch]) gl_PREREQ_FNMATCH fi - gl_FUNC_FREXP + gl_MODULE_INDICATOR([fnmatch-gnu]) + gl_FNMATCH_H + AC_REQUIRE([gl_FUNC_FREXP]) if test $gl_func_frexp != yes; then AC_LIBOBJ([frexp]) fi gl_MATH_MODULE_INDICATOR([frexp]) - gl_FUNC_FREXPL + AC_REQUIRE([gl_FUNC_FREXPL]) if test $HAVE_DECL_FREXPL = 0 || test $gl_func_frexpl = no; then AC_LIBOBJ([frexpl]) fi @@ -319,6 +336,11 @@ AC_DEFUN([gl_INIT], gl_FUNC_FSTAT if test $REPLACE_FSTAT = 1; then AC_LIBOBJ([fstat]) + case "$host_os" in + mingw*) + AC_LIBOBJ([stat-w32]) + ;; + esac gl_PREREQ_FSTAT fi gl_SYS_STAT_MODULE_INDICATOR([fstat]) @@ -351,6 +373,7 @@ AC_DEFUN([gl_INIT], gl_PREREQ_GETLOGIN_R fi gl_UNISTD_MODULE_INDICATOR([getlogin_r]) + AC_REQUIRE([gl_LIB_GETLOGIN]) gl_FUNC_GETPROGNAME AC_SUBST([LIBINTL]) AC_SUBST([LTLIBINTL]) @@ -361,11 +384,16 @@ AC_DEFUN([gl_INIT], fi gl_SYS_TIME_MODULE_INDICATOR([gettimeofday]) gl_GLOB - if test -n "$GLOB_H"; then + if test $HAVE_GLOB = 0 || test $REPLACE_GLOB = 1; then AC_LIBOBJ([glob]) + AC_LIBOBJ([globfree]) gl_PREREQ_GLOB fi - gl_HARD_LOCALE + if test $HAVE_GLOB_PATTERN_P = 0 || test $REPLACE_GLOB_PATTERN_P = 1; then + AC_LIBOBJ([glob_pattern_p]) + fi + gl_GLOB_MODULE_INDICATOR([glob]) + gl_GLOB_H gl_FUNC_INET_NTOP if test $HAVE_INET_NTOP = 0 || test $REPLACE_INET_NTOP = 1; then AC_LIBOBJ([inet_ntop]) @@ -385,10 +413,14 @@ AC_DEFUN([gl_INIT], gl_PREREQ_ISNANL fi AC_REQUIRE([gl_LARGEFILE]) + gl___INLINE gl_LIMITS_H gl_LOCALCHARSET - LOCALCHARSET_TESTS_ENVIRONMENT="CHARSETALIASDIR=\"\$(abs_top_builddir)/$gl_source_base\"" + dnl For backward compatibility. Some packages still use this. + LOCALCHARSET_TESTS_ENVIRONMENT= AC_SUBST([LOCALCHARSET_TESTS_ENVIRONMENT]) + AC_REQUIRE([gl_LOCALTIME_BUFFER_DEFAULTS]) + AC_LIBOBJ([localtime-buffer]) gl_LOCK gl_MODULE_INDICATOR([lock]) gl_FUNC_LSTAT @@ -475,6 +507,7 @@ AC_DEFUN([gl_INIT], if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then AC_LIBOBJ([msvc-nothrow]) fi + gl_MODULE_INDICATOR([msvc-nothrow]) gl_MULTIARCH gl_HEADER_NETINET_IN AC_PROG_MKDIR_P @@ -535,12 +568,6 @@ AC_DEFUN([gl_INIT], fi gl_UNISTD_MODULE_INDICATOR([rmdir]) gl_SAVE_CWD - gl_FUNC_SECURE_GETENV - if test $HAVE_SECURE_GETENV = 0; then - AC_LIBOBJ([secure_getenv]) - gl_PREREQ_SECURE_GETENV - fi - gl_STDLIB_MODULE_INDICATOR([secure_getenv]) gl_FUNC_SETENV if test $HAVE_SETENV = 0 || test $REPLACE_SETENV = 1; then AC_LIBOBJ([setenv]) @@ -552,9 +579,16 @@ AC_DEFUN([gl_INIT], gl_FUNC_STAT if test $REPLACE_STAT = 1; then AC_LIBOBJ([stat]) + case "$host_os" in + mingw*) + AC_LIBOBJ([stat-w32]) + ;; + esac gl_PREREQ_STAT fi gl_SYS_STAT_MODULE_INDICATOR([stat]) + gl_STAT_TIME + gl_STAT_BIRTHTIME gl_STDALIGN_H AM_STDBOOL_H gl_STDDEF_H @@ -591,6 +625,8 @@ AC_DEFUN([gl_INIT], gl_PREREQ_STRERROR_R fi gl_STRING_MODULE_INDICATOR([strerror_r]) + dnl For the modules argp, error. + gl_MODULE_INDICATOR([strerror_r-posix]) gl_HEADER_STRING_H gl_FUNC_STRSTR if test $REPLACE_STRSTR = 1; then @@ -618,7 +654,7 @@ AC_DEFUN([gl_INIT], gl_HEADER_SYS_UIO AC_PROG_MKDIR_P gl_FUNC_GEN_TEMPNAME - gl_THREADLIB + AC_REQUIRE([gl_THREADLIB]) gl_HEADER_TIME_H gl_TIME_R if test $HAVE_LOCALTIME_R = 0 || test $REPLACE_LOCALTIME_R = 1; then @@ -636,6 +672,30 @@ AC_DEFUN([gl_INIT], gl_STDLIB_MODULE_INDICATOR([unsetenv]) gl_WCHAR_H gl_WCTYPE_H + AC_REQUIRE([AC_CANONICAL_HOST]) + case "$host_os" in + mingw*) + AC_LIBOBJ([windows-mutex]) + ;; + esac + AC_REQUIRE([AC_CANONICAL_HOST]) + case "$host_os" in + mingw*) + AC_LIBOBJ([windows-once]) + ;; + esac + AC_REQUIRE([AC_CANONICAL_HOST]) + case "$host_os" in + mingw*) + AC_LIBOBJ([windows-recmutex]) + ;; + esac + AC_REQUIRE([AC_CANONICAL_HOST]) + case "$host_os" in + mingw*) + AC_LIBOBJ([windows-rwlock]) + ;; + esac # End of code from modules m4_ifval(gl_LIBSOURCES_LIST, [ m4_syscmd([test ! -d ]m4_defn([gl_LIBSOURCES_DIR])[ || @@ -777,31 +837,31 @@ AC_DEFUN([gltests_LIBSOURCES], [ # gnulib-tool and may be removed by future gnulib-tool invocations. AC_DEFUN([gl_FILE_LIST], [ build-aux/config.rpath - build-aux/snippet/_Noreturn.h - build-aux/snippet/arg-nonnull.h - build-aux/snippet/c++defs.h - build-aux/snippet/warn-on-use.h build-aux/update-copyright + lib/_Noreturn.h lib/alloca.c lib/alloca.in.h + lib/arg-nonnull.h lib/arpa_inet.in.h lib/assure.h lib/at-func.c lib/basename-lgpl.c + lib/c++defs.h lib/canonicalize-lgpl.c + lib/cdefs.h lib/chdir-long.c lib/chdir-long.h lib/cloexec.c lib/cloexec.h lib/close.c lib/closedir.c - lib/config.charset lib/dirent-private.h lib/dirent.in.h lib/dirfd.c lib/dirname-lgpl.c lib/dirname.h lib/dosname.h + lib/dup-safer-flag.c lib/dup-safer.c lib/dup.c lib/dup2.c @@ -815,6 +875,7 @@ AC_DEFUN([gl_FILE_LIST], [ lib/fcntl.in.h lib/fd-hook.c lib/fd-hook.h + lib/fd-safer-flag.c lib/fd-safer.c lib/fdopendir.c lib/filename.h @@ -843,6 +904,9 @@ AC_DEFUN([gl_FILE_LIST], [ lib/glob-libc.h lib/glob.c lib/glob.in.h + lib/glob_internal.h + lib/glob_pattern_p.c + lib/globfree.c lib/glthread/lock.c lib/glthread/lock.h lib/glthread/threadlib.c @@ -857,14 +921,20 @@ AC_DEFUN([gl_FILE_LIST], [ lib/isnanl-nolibm.h lib/isnanl.c lib/itold.c + lib/libc-config.h lib/limits.in.h lib/localcharset.c lib/localcharset.h + lib/localtime-buffer.c + lib/localtime-buffer.h lib/lstat.c lib/malloc.c + lib/malloc/scratch_buffer.h + lib/malloc/scratch_buffer_grow.c + lib/malloc/scratch_buffer_grow_preserve.c + lib/malloc/scratch_buffer_set_array_size.c lib/malloca.c lib/malloca.h - lib/malloca.valgrind lib/math.c lib/math.in.h lib/mbrtowc.c @@ -899,17 +969,19 @@ AC_DEFUN([gl_FILE_LIST], [ lib/readdir.c lib/readlink.c lib/realloc.c - lib/ref-add.sin - lib/ref-del.sin lib/rename.c lib/rewinddir.c lib/rmdir.c lib/same-inode.h lib/save-cwd.c lib/save-cwd.h - lib/secure_getenv.c + lib/scratch_buffer.h lib/setenv.c lib/signal.in.h + lib/stat-time.c + lib/stat-time.h + lib/stat-w32.c + lib/stat-w32.h lib/stat.c lib/stdalign.in.h lib/stdbool.in.h @@ -948,19 +1020,31 @@ AC_DEFUN([gl_FILE_LIST], [ lib/unistd.in.h lib/unsetenv.c lib/verify.h + lib/warn-on-use.h lib/wchar.in.h lib/wctype-h.c lib/wctype.in.h + lib/windows-initguard.h + lib/windows-mutex.c + lib/windows-mutex.h + lib/windows-once.c + lib/windows-once.h + lib/windows-recmutex.c + lib/windows-recmutex.h + lib/windows-rwlock.c + lib/windows-rwlock.h + lib/xalloc-oversized.h m4/00gnulib.m4 + m4/__inline.m4 m4/absolute-header.m4 m4/alloca.m4 m4/arpa_inet_h.m4 + m4/builtin-expect.m4 m4/canonicalize.m4 m4/chdir-long.m4 m4/close.m4 m4/closedir.m4 m4/codeset.m4 - m4/configmake.m4 m4/d-ino.m4 m4/d-type.m4 m4/dirent_h.m4 @@ -986,6 +1070,7 @@ AC_DEFUN([gl_FILE_LIST], [ m4/flexmember.m4 m4/float_h.m4 m4/fnmatch.m4 + m4/fnmatch_h.m4 m4/fpieee.m4 m4/frexp.m4 m4/frexpl.m4 @@ -995,13 +1080,15 @@ AC_DEFUN([gl_FILE_LIST], [ m4/getcwd-path-max.m4 m4/getcwd.m4 m4/getdtablesize.m4 + m4/getlogin.m4 m4/getlogin_r.m4 + m4/getpagesize.m4 m4/getprogname.m4 m4/gettimeofday.m4 - m4/glibc21.m4 m4/glob.m4 + m4/glob_h.m4 m4/gnulib-common.m4 - m4/hard-locale.m4 + m4/host-cpu-c-abi.m4 m4/include_next.m4 m4/inet_ntop.m4 m4/inttypes-pri.m4 @@ -1017,6 +1104,7 @@ AC_DEFUN([gl_FILE_LIST], [ m4/locale-fr.m4 m4/locale-ja.m4 m4/locale-zh.m4 + m4/localtime-buffer.m4 m4/lock.m4 m4/longlong.m4 m4/lstat.m4 @@ -1042,11 +1130,13 @@ AC_DEFUN([gl_FILE_LIST], [ m4/netinet_in_h.m4 m4/nocrash.m4 m4/off_t.m4 - m4/onceonly.m4 + m4/open-cloexec.m4 + m4/open-slash.m4 m4/open.m4 m4/openat.m4 m4/opendir.m4 m4/pathmax.m4 + m4/pthread_rwlock_rdlock.m4 m4/rawmemchr.m4 m4/readdir.m4 m4/readlink.m4 @@ -1055,13 +1145,14 @@ AC_DEFUN([gl_FILE_LIST], [ m4/rewinddir.m4 m4/rmdir.m4 m4/save-cwd.m4 - m4/secure_getenv.m4 m4/setenv.m4 m4/signal_h.m4 m4/socklen.m4 m4/sockpfaf.m4 m4/ssize_t.m4 + m4/stat-time.m4 m4/stat.m4 + m4/std-gnu11.m4 m4/stdalign.m4 m4/stdbool.m4 m4/stddef_h.m4 diff --git a/gnulib/import/m4/gnulib-tool.m4 b/gnulib/import/m4/gnulib-tool.m4 index 0d2ee444b4f..98e6adeb1b3 100644 --- a/gnulib/import/m4/gnulib-tool.m4 +++ b/gnulib/import/m4/gnulib-tool.m4 @@ -1,5 +1,5 @@ # gnulib-tool.m4 serial 2 -dnl Copyright (C) 2004-2005, 2009-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2004-2005, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/hard-locale.m4 b/gnulib/import/m4/hard-locale.m4 deleted file mode 100644 index 4661bfc5acc..00000000000 --- a/gnulib/import/m4/hard-locale.m4 +++ /dev/null @@ -1,11 +0,0 @@ -# hard-locale.m4 serial 8 -dnl Copyright (C) 2002-2006, 2009-2016 Free Software Foundation, Inc. -dnl This file is free software; the Free Software Foundation -dnl gives unlimited permission to copy and/or distribute it, -dnl with or without modifications, as long as this notice is preserved. - -dnl No prerequisites of lib/hard-locale.c. -AC_DEFUN([gl_HARD_LOCALE], -[ - : -]) diff --git a/gnulib/import/m4/host-cpu-c-abi.m4 b/gnulib/import/m4/host-cpu-c-abi.m4 new file mode 100644 index 00000000000..6fc31bc0073 --- /dev/null +++ b/gnulib/import/m4/host-cpu-c-abi.m4 @@ -0,0 +1,675 @@ +# host-cpu-c-abi.m4 serial 13 +dnl Copyright (C) 2002-2019 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible and Sam Steingold. + +dnl Sets the HOST_CPU variable to the canonical name of the CPU. +dnl Sets the HOST_CPU_C_ABI variable to the canonical name of the CPU with its +dnl C language ABI (application binary interface). +dnl Also defines __${HOST_CPU}__ and __${HOST_CPU_C_ABI}__ as C macros in +dnl config.h. +dnl +dnl This canonical name can be used to select a particular assembly language +dnl source file that will interoperate with C code on the given host. +dnl +dnl For example: +dnl * 'i386' and 'sparc' are different canonical names, because code for i386 +dnl will not run on SPARC CPUs and vice versa. They have different +dnl instruction sets. +dnl * 'sparc' and 'sparc64' are different canonical names, because code for +dnl 'sparc' and code for 'sparc64' cannot be linked together: 'sparc' code +dnl contains 32-bit instructions, whereas 'sparc64' code contains 64-bit +dnl instructions. A process on a SPARC CPU can be in 32-bit mode or in 64-bit +dnl mode, but not both. +dnl * 'mips' and 'mipsn32' are different canonical names, because they use +dnl different argument passing and return conventions for C functions, and +dnl although the instruction set of 'mips' is a large subset of the +dnl instruction set of 'mipsn32'. +dnl * 'mipsn32' and 'mips64' are different canonical names, because they use +dnl different sizes for the C types like 'int' and 'void *', and although +dnl the instruction sets of 'mipsn32' and 'mips64' are the same. +dnl * The same canonical name is used for different endiannesses. You can +dnl determine the endianness through preprocessor symbols: +dnl - 'arm': test __ARMEL__. +dnl - 'mips', 'mipsn32', 'mips64': test _MIPSEB vs. _MIPSEL. +dnl - 'powerpc64': test _BIG_ENDIAN vs. _LITTLE_ENDIAN. +dnl * The same name 'i386' is used for CPUs of type i386, i486, i586 +dnl (Pentium), AMD K7, Pentium II, Pentium IV, etc., because +dnl - Instructions that do not exist on all of these CPUs (cmpxchg, +dnl MMX, SSE, SSE2, 3DNow! etc.) are not frequently used. If your +dnl assembly language source files use such instructions, you will +dnl need to make the distinction. +dnl - Speed of execution of the common instruction set is reasonable across +dnl the entire family of CPUs. If you have assembly language source files +dnl that are optimized for particular CPU types (like GNU gmp has), you +dnl will need to make the distinction. +dnl See <https://en.wikipedia.org/wiki/X86_instruction_listings>. +AC_DEFUN([gl_HOST_CPU_C_ABI], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([gl_C_ASM]) + AC_CACHE_CHECK([host CPU and C ABI], [gl_cv_host_cpu_c_abi], + [case "$host_cpu" in + +changequote(,)dnl + i[34567]86 ) +changequote([,])dnl + gl_cv_host_cpu_c_abi=i386 + ;; + + x86_64 ) + # On x86_64 systems, the C compiler may be generating code in one of + # these ABIs: + # - 64-bit instruction set, 64-bit pointers, 64-bit 'long': x86_64. + # - 64-bit instruction set, 64-bit pointers, 32-bit 'long': x86_64 + # with native Windows (mingw, MSVC). + # - 64-bit instruction set, 32-bit pointers, 32-bit 'long': x86_64-x32. + # - 32-bit instruction set, 32-bit pointers, 32-bit 'long': i386. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if (defined __x86_64__ || defined __amd64__ \ + || defined _M_X64 || defined _M_AMD64) + int ok; + #else + error fail + #endif + ]])], + [AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __ILP32__ || defined _ILP32 + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=x86_64-x32], + [gl_cv_host_cpu_c_abi=x86_64])], + [gl_cv_host_cpu_c_abi=i386]) + ;; + +changequote(,)dnl + alphaev[4-8] | alphaev56 | alphapca5[67] | alphaev6[78] ) +changequote([,])dnl + gl_cv_host_cpu_c_abi=alpha + ;; + + arm* | aarch64 ) + # Assume arm with EABI. + # On arm64 systems, the C compiler may be generating code in one of + # these ABIs: + # - aarch64 instruction set, 64-bit pointers, 64-bit 'long': arm64. + # - aarch64 instruction set, 32-bit pointers, 32-bit 'long': arm64-ilp32. + # - 32-bit instruction set, 32-bit pointers, 32-bit 'long': arm or armhf. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#ifdef __aarch64__ + int ok; + #else + error fail + #endif + ]])], + [AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __ILP32__ || defined _ILP32 + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=arm64-ilp32], + [gl_cv_host_cpu_c_abi=arm64])], + [# Don't distinguish little-endian and big-endian arm, since they + # don't require different machine code for simple operations and + # since the user can distinguish them through the preprocessor + # defines __ARMEL__ vs. __ARMEB__. + # But distinguish arm which passes floating-point arguments and + # return values in integer registers (r0, r1, ...) - this is + # gcc -mfloat-abi=soft or gcc -mfloat-abi=softfp - from arm which + # passes them in float registers (s0, s1, ...) and double registers + # (d0, d1, ...) - this is gcc -mfloat-abi=hard. GCC 4.6 or newer + # sets the preprocessor defines __ARM_PCS (for the first case) and + # __ARM_PCS_VFP (for the second case), but older GCC does not. + echo 'double ddd; void func (double dd) { ddd = dd; }' > conftest.c + # Look for a reference to the register d0 in the .s file. + AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS $gl_c_asm_opt conftest.c) >/dev/null 2>&1 + if LC_ALL=C grep 'd0,' conftest.$gl_asmext >/dev/null; then + gl_cv_host_cpu_c_abi=armhf + else + gl_cv_host_cpu_c_abi=arm + fi + rm -f conftest* + ]) + ;; + + hppa1.0 | hppa1.1 | hppa2.0* | hppa64 ) + # On hppa, the C compiler may be generating 32-bit code or 64-bit + # code. In the latter case, it defines _LP64 and __LP64__. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#ifdef __LP64__ + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=hppa64], + [gl_cv_host_cpu_c_abi=hppa]) + ;; + + ia64* ) + # On ia64 on HP-UX, the C compiler may be generating 64-bit code or + # 32-bit code. In the latter case, it defines _ILP32. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#ifdef _ILP32 + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=ia64-ilp32], + [gl_cv_host_cpu_c_abi=ia64]) + ;; + + mips* ) + # We should also check for (_MIPS_SZPTR == 64), but gcc keeps this + # at 32. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined _MIPS_SZLONG && (_MIPS_SZLONG == 64) + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=mips64], + [# In the n32 ABI, _ABIN32 is defined, _ABIO32 is not defined (but + # may later get defined by <sgidefs.h>), and _MIPS_SIM == _ABIN32. + # In the 32 ABI, _ABIO32 is defined, _ABIN32 is not defined (but + # may later get defined by <sgidefs.h>), and _MIPS_SIM == _ABIO32. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if (_MIPS_SIM == _ABIN32) + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=mipsn32], + [gl_cv_host_cpu_c_abi=mips])]) + ;; + + powerpc* ) + # Different ABIs are in use on AIX vs. Mac OS X vs. Linux,*BSD. + # No need to distinguish them here; the caller may distinguish + # them based on the OS. + # On powerpc64 systems, the C compiler may still be generating + # 32-bit code. And on powerpc-ibm-aix systems, the C compiler may + # be generating 64-bit code. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __powerpc64__ || defined _ARCH_PPC64 + int ok; + #else + error fail + #endif + ]])], + [# On powerpc64, there are two ABIs on Linux: The AIX compatible + # one and the ELFv2 one. The latter defines _CALL_ELF=2. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined _CALL_ELF && _CALL_ELF == 2 + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=powerpc64-elfv2], + [gl_cv_host_cpu_c_abi=powerpc64]) + ], + [gl_cv_host_cpu_c_abi=powerpc]) + ;; + + rs6000 ) + gl_cv_host_cpu_c_abi=powerpc + ;; + + riscv32 | riscv64 ) + # There are 2 architectures (with variants): rv32* and rv64*. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if __riscv_xlen == 64 + int ok; + #else + error fail + #endif + ]])], + [cpu=riscv64], + [cpu=riscv32]) + # There are 6 ABIs: ilp32, ilp32f, ilp32d, lp64, lp64f, lp64d. + # Size of 'long' and 'void *': + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __LP64__ + int ok; + #else + error fail + #endif + ]])], + [main_abi=lp64], + [main_abi=ilp32]) + # Float ABIs: + # __riscv_float_abi_double: + # 'float' and 'double' are passed in floating-point registers. + # __riscv_float_abi_single: + # 'float' are passed in floating-point registers. + # __riscv_float_abi_soft: + # No values are passed in floating-point registers. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __riscv_float_abi_double + int ok; + #else + error fail + #endif + ]])], + [float_abi=d], + [AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __riscv_float_abi_single + int ok; + #else + error fail + #endif + ]])], + [float_abi=f], + [float_abi='']) + ]) + gl_cv_host_cpu_c_abi="${cpu}-${main_abi}${float_abi}" + ;; + + s390* ) + # On s390x, the C compiler may be generating 64-bit (= s390x) code + # or 31-bit (= s390) code. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __LP64__ || defined __s390x__ + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=s390x], + [gl_cv_host_cpu_c_abi=s390]) + ;; + + sparc | sparc64 ) + # UltraSPARCs running Linux have `uname -m` = "sparc64", but the + # C compiler still generates 32-bit code. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __sparcv9 || defined __arch64__ + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=sparc64], + [gl_cv_host_cpu_c_abi=sparc]) + ;; + + *) + gl_cv_host_cpu_c_abi="$host_cpu" + ;; + esac + ]) + + dnl In most cases, $HOST_CPU and $HOST_CPU_C_ABI are the same. + HOST_CPU=`echo "$gl_cv_host_cpu_c_abi" | sed -e 's/-.*//'` + HOST_CPU_C_ABI="$gl_cv_host_cpu_c_abi" + AC_SUBST([HOST_CPU]) + AC_SUBST([HOST_CPU_C_ABI]) + + # This was + # AC_DEFINE_UNQUOTED([__${HOST_CPU}__]) + # AC_DEFINE_UNQUOTED([__${HOST_CPU_C_ABI}__]) + # earlier, but KAI C++ 3.2d doesn't like this. + sed -e 's/-/_/g' >> confdefs.h <<EOF +#ifndef __${HOST_CPU}__ +#define __${HOST_CPU}__ 1 +#endif +#ifndef __${HOST_CPU_C_ABI}__ +#define __${HOST_CPU_C_ABI}__ 1 +#endif +EOF + AH_TOP([/* CPU and C ABI indicator */ +#ifndef __i386__ +#undef __i386__ +#endif +#ifndef __x86_64_x32__ +#undef __x86_64_x32__ +#endif +#ifndef __x86_64__ +#undef __x86_64__ +#endif +#ifndef __alpha__ +#undef __alpha__ +#endif +#ifndef __arm__ +#undef __arm__ +#endif +#ifndef __armhf__ +#undef __armhf__ +#endif +#ifndef __arm64_ilp32__ +#undef __arm64_ilp32__ +#endif +#ifndef __arm64__ +#undef __arm64__ +#endif +#ifndef __hppa__ +#undef __hppa__ +#endif +#ifndef __hppa64__ +#undef __hppa64__ +#endif +#ifndef __ia64_ilp32__ +#undef __ia64_ilp32__ +#endif +#ifndef __ia64__ +#undef __ia64__ +#endif +#ifndef __m68k__ +#undef __m68k__ +#endif +#ifndef __mips__ +#undef __mips__ +#endif +#ifndef __mipsn32__ +#undef __mipsn32__ +#endif +#ifndef __mips64__ +#undef __mips64__ +#endif +#ifndef __powerpc__ +#undef __powerpc__ +#endif +#ifndef __powerpc64__ +#undef __powerpc64__ +#endif +#ifndef __powerpc64_elfv2__ +#undef __powerpc64_elfv2__ +#endif +#ifndef __riscv32__ +#undef __riscv32__ +#endif +#ifndef __riscv64__ +#undef __riscv64__ +#endif +#ifndef __riscv32_ilp32__ +#undef __riscv32_ilp32__ +#endif +#ifndef __riscv32_ilp32f__ +#undef __riscv32_ilp32f__ +#endif +#ifndef __riscv32_ilp32d__ +#undef __riscv32_ilp32d__ +#endif +#ifndef __riscv64_ilp32__ +#undef __riscv64_ilp32__ +#endif +#ifndef __riscv64_ilp32f__ +#undef __riscv64_ilp32f__ +#endif +#ifndef __riscv64_ilp32d__ +#undef __riscv64_ilp32d__ +#endif +#ifndef __riscv64_lp64__ +#undef __riscv64_lp64__ +#endif +#ifndef __riscv64_lp64f__ +#undef __riscv64_lp64f__ +#endif +#ifndef __riscv64_lp64d__ +#undef __riscv64_lp64d__ +#endif +#ifndef __s390__ +#undef __s390__ +#endif +#ifndef __s390x__ +#undef __s390x__ +#endif +#ifndef __sh__ +#undef __sh__ +#endif +#ifndef __sparc__ +#undef __sparc__ +#endif +#ifndef __sparc64__ +#undef __sparc64__ +#endif +]) + +]) + + +dnl Sets the HOST_CPU_C_ABI_32BIT variable to 'yes' if the C language ABI +dnl (application binary interface) is a 32-bit one, to 'no' if it is a 64-bit +dnl one, or to 'unknown' if unknown. +dnl This is a simplified variant of gl_HOST_CPU_C_ABI. +AC_DEFUN([gl_HOST_CPU_C_ABI_32BIT], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_CACHE_CHECK([32-bit host C ABI], [gl_cv_host_cpu_c_abi_32bit], + [if test -n "$gl_cv_host_cpu_c_abi"; then + case "$gl_cv_host_cpu_c_abi" in + i386 | x86_64-x32 | arm | armhf | arm64-ilp32 | hppa | ia64-ilp32 | mips | mipsn32 | powerpc | riscv*-ilp32* | s390 | sparc) + gl_cv_host_cpu_c_abi_32bit=yes ;; + x86_64 | alpha | arm64 | hppa64 | ia64 | mips64 | powerpc64 | powerpc64-elfv2 | riscv*-lp64* | s390x | sparc64 ) + gl_cv_host_cpu_c_abi_32bit=no ;; + *) + gl_cv_host_cpu_c_abi_32bit=unknown ;; + esac + else + case "$host_cpu" in + + # CPUs that only support a 32-bit ABI. + arc \ + | bfin \ + | cris* \ + | csky \ + | epiphany \ + | ft32 \ + | h8300 \ + | m68k \ + | microblaze | microblazeel \ + | nds32 | nds32le | nds32be \ + | nios2 | nios2eb | nios2el \ + | or1k* \ + | or32 \ + | sh | sh[1234] | sh[1234]e[lb] \ + | tic6x \ + | xtensa* ) + gl_cv_host_cpu_c_abi_32bit=yes + ;; + + # CPUs that only support a 64-bit ABI. +changequote(,)dnl + alpha | alphaev[4-8] | alphaev56 | alphapca5[67] | alphaev6[78] \ + | mmix ) +changequote([,])dnl + gl_cv_host_cpu_c_abi_32bit=no + ;; + +changequote(,)dnl + i[34567]86 ) +changequote([,])dnl + gl_cv_host_cpu_c_abi_32bit=yes + ;; + + x86_64 ) + # On x86_64 systems, the C compiler may be generating code in one of + # these ABIs: + # - 64-bit instruction set, 64-bit pointers, 64-bit 'long': x86_64. + # - 64-bit instruction set, 64-bit pointers, 32-bit 'long': x86_64 + # with native Windows (mingw, MSVC). + # - 64-bit instruction set, 32-bit pointers, 32-bit 'long': x86_64-x32. + # - 32-bit instruction set, 32-bit pointers, 32-bit 'long': i386. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if (defined __x86_64__ || defined __amd64__ \ + || defined _M_X64 || defined _M_AMD64) \ + && !(defined __ILP32__ || defined _ILP32) + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi_32bit=no], + [gl_cv_host_cpu_c_abi_32bit=yes]) + ;; + + arm* | aarch64 ) + # Assume arm with EABI. + # On arm64 systems, the C compiler may be generating code in one of + # these ABIs: + # - aarch64 instruction set, 64-bit pointers, 64-bit 'long': arm64. + # - aarch64 instruction set, 32-bit pointers, 32-bit 'long': arm64-ilp32. + # - 32-bit instruction set, 32-bit pointers, 32-bit 'long': arm or armhf. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __aarch64__ && !(defined __ILP32__ || defined _ILP32) + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi_32bit=no], + [gl_cv_host_cpu_c_abi_32bit=yes]) + ;; + + hppa1.0 | hppa1.1 | hppa2.0* | hppa64 ) + # On hppa, the C compiler may be generating 32-bit code or 64-bit + # code. In the latter case, it defines _LP64 and __LP64__. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#ifdef __LP64__ + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi_32bit=no], + [gl_cv_host_cpu_c_abi_32bit=yes]) + ;; + + ia64* ) + # On ia64 on HP-UX, the C compiler may be generating 64-bit code or + # 32-bit code. In the latter case, it defines _ILP32. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#ifdef _ILP32 + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi_32bit=yes], + [gl_cv_host_cpu_c_abi_32bit=no]) + ;; + + mips* ) + # We should also check for (_MIPS_SZPTR == 64), but gcc keeps this + # at 32. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined _MIPS_SZLONG && (_MIPS_SZLONG == 64) + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi_32bit=no], + [gl_cv_host_cpu_c_abi_32bit=yes]) + ;; + + powerpc* ) + # Different ABIs are in use on AIX vs. Mac OS X vs. Linux,*BSD. + # No need to distinguish them here; the caller may distinguish + # them based on the OS. + # On powerpc64 systems, the C compiler may still be generating + # 32-bit code. And on powerpc-ibm-aix systems, the C compiler may + # be generating 64-bit code. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __powerpc64__ || defined _ARCH_PPC64 + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi_32bit=no], + [gl_cv_host_cpu_c_abi_32bit=yes]) + ;; + + rs6000 ) + gl_cv_host_cpu_c_abi_32bit=yes + ;; + + riscv32 | riscv64 ) + # There are 6 ABIs: ilp32, ilp32f, ilp32d, lp64, lp64f, lp64d. + # Size of 'long' and 'void *': + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __LP64__ + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi_32bit=no], + [gl_cv_host_cpu_c_abi_32bit=yes]) + ;; + + s390* ) + # On s390x, the C compiler may be generating 64-bit (= s390x) code + # or 31-bit (= s390) code. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __LP64__ || defined __s390x__ + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi_32bit=no], + [gl_cv_host_cpu_c_abi_32bit=yes]) + ;; + + sparc | sparc64 ) + # UltraSPARCs running Linux have `uname -m` = "sparc64", but the + # C compiler still generates 32-bit code. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __sparcv9 || defined __arch64__ + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi_32bit=no], + [gl_cv_host_cpu_c_abi_32bit=yes]) + ;; + + *) + gl_cv_host_cpu_c_abi_32bit=unknown + ;; + esac + fi + ]) + + HOST_CPU_C_ABI_32BIT="$gl_cv_host_cpu_c_abi_32bit" +]) diff --git a/gnulib/import/m4/include_next.m4 b/gnulib/import/m4/include_next.m4 index db0f2c0795c..86eb2c97c92 100644 --- a/gnulib/import/m4/include_next.m4 +++ b/gnulib/import/m4/include_next.m4 @@ -1,12 +1,13 @@ -# include_next.m4 serial 23 -dnl Copyright (C) 2006-2016 Free Software Foundation, Inc. +# include_next.m4 serial 24 +dnl Copyright (C) 2006-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Paul Eggert and Derek Price. -dnl Sets INCLUDE_NEXT and PRAGMA_SYSTEM_HEADER. +dnl Sets INCLUDE_NEXT, INCLUDE_NEXT_AS_FIRST_DIRECTIVE, PRAGMA_SYSTEM_HEADER, +dnl and PRAGMA_COLUMNS. dnl dnl INCLUDE_NEXT expands to 'include_next' if the compiler supports it, or to dnl 'include' otherwise. diff --git a/gnulib/import/m4/inet_ntop.m4 b/gnulib/import/m4/inet_ntop.m4 index 26464c34acb..d71246ba720 100644 --- a/gnulib/import/m4/inet_ntop.m4 +++ b/gnulib/import/m4/inet_ntop.m4 @@ -1,5 +1,5 @@ -# inet_ntop.m4 serial 19 -dnl Copyright (C) 2005-2006, 2008-2016 Free Software Foundation, Inc. +# inet_ntop.m4 serial 21 +dnl Copyright (C) 2005-2006, 2008-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -16,6 +16,7 @@ AC_DEFUN([gl_FUNC_INET_NTOP], dnl Most platforms that provide inet_ntop define it in libc. dnl Solaris 8..10 provide inet_ntop in libnsl instead. dnl Solaris 2.6..7 provide inet_ntop in libresolv instead. + dnl Haiku provides it in -lnetwork. dnl Native Windows provides it in -lws2_32 instead, with a declaration in dnl <ws2tcpip.h>, and it uses stdcall calling convention, not cdecl dnl (hence we cannot use AC_CHECK_FUNCS, AC_SEARCH_LIBS to find it). @@ -23,19 +24,20 @@ AC_DEFUN([gl_FUNC_INET_NTOP], INET_NTOP_LIB= gl_PREREQ_SYS_H_WINSOCK2 if test $HAVE_WINSOCK2_H = 1; then + dnl It needs to be overridden, because the stdcall calling convention + dnl is not compliant with POSIX. Set REPLACE_INET_NTOP in order to avoid + dnl a name conflict at the linker level, even though the header file + dnl <ws2tcpip.h> declares inet_ntop only if _WIN32_WINNT >= 0x0600. + REPLACE_INET_NTOP=1 AC_CHECK_DECLS([inet_ntop],,, [[#include <ws2tcpip.h>]]) if test $ac_cv_have_decl_inet_ntop = yes; then - dnl It needs to be overridden, because the stdcall calling convention - dnl is not compliant with POSIX. - REPLACE_INET_NTOP=1 INET_NTOP_LIB="-lws2_32" else HAVE_DECL_INET_NTOP=0 - HAVE_INET_NTOP=0 fi else gl_save_LIBS=$LIBS - AC_SEARCH_LIBS([inet_ntop], [nsl resolv], [], + AC_SEARCH_LIBS([inet_ntop], [nsl resolv network], [], [AC_CHECK_FUNCS([inet_ntop]) if test $ac_cv_func_inet_ntop = no; then HAVE_INET_NTOP=0 diff --git a/gnulib/import/m4/inttypes-pri.m4 b/gnulib/import/m4/inttypes-pri.m4 index ae20183db42..38fe118a342 100644 --- a/gnulib/import/m4/inttypes-pri.m4 +++ b/gnulib/import/m4/inttypes-pri.m4 @@ -1,5 +1,5 @@ # inttypes-pri.m4 serial 7 (gettext-0.18.2) -dnl Copyright (C) 1997-2002, 2006, 2008-2016 Free Software Foundation, Inc. +dnl Copyright (C) 1997-2002, 2006, 2008-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/inttypes.m4 b/gnulib/import/m4/inttypes.m4 index 61cdb1a8483..c58a1bec474 100644 --- a/gnulib/import/m4/inttypes.m4 +++ b/gnulib/import/m4/inttypes.m4 @@ -1,5 +1,5 @@ -# inttypes.m4 serial 26 -dnl Copyright (C) 2006-2016 Free Software Foundation, Inc. +# inttypes.m4 serial 27 +dnl Copyright (C) 2006-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -147,6 +147,7 @@ AC_DEFUN([gl_INTTYPES_H_DEFAULTS], HAVE_DECL_IMAXDIV=1; AC_SUBST([HAVE_DECL_IMAXDIV]) HAVE_DECL_STRTOIMAX=1; AC_SUBST([HAVE_DECL_STRTOIMAX]) HAVE_DECL_STRTOUMAX=1; AC_SUBST([HAVE_DECL_STRTOUMAX]) + HAVE_IMAXDIV_T=1; AC_SUBST([HAVE_IMAXDIV_T]) REPLACE_STRTOIMAX=0; AC_SUBST([REPLACE_STRTOIMAX]) REPLACE_STRTOUMAX=0; AC_SUBST([REPLACE_STRTOUMAX]) INT32_MAX_LT_INTMAX_MAX=1; AC_SUBST([INT32_MAX_LT_INTMAX_MAX]) diff --git a/gnulib/import/m4/isnand.m4 b/gnulib/import/m4/isnand.m4 index bcf3840dbc2..31af0242862 100644 --- a/gnulib/import/m4/isnand.m4 +++ b/gnulib/import/m4/isnand.m4 @@ -1,5 +1,5 @@ # isnand.m4 serial 11 -dnl Copyright (C) 2007-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2007-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/isnanl.m4 b/gnulib/import/m4/isnanl.m4 index 9766e47201c..3bef867e6b1 100644 --- a/gnulib/import/m4/isnanl.m4 +++ b/gnulib/import/m4/isnanl.m4 @@ -1,5 +1,5 @@ -# isnanl.m4 serial 19 -dnl Copyright (C) 2007-2016 Free Software Foundation, Inc. +# isnanl.m4 serial 20 +dnl Copyright (C) 2007-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -231,6 +231,18 @@ int main () }]])], [gl_cv_func_isnanl_works=yes], [gl_cv_func_isnanl_works=no], - [gl_cv_func_isnanl_works="guessing yes"]) + [case "$host_os" in + mingw*) # Guess yes on mingw, no on MSVC. + AC_EGREP_CPP([Known], [ +#ifdef __MINGW32__ + Known +#endif + ], + [gl_cv_func_isnanl_works="guessing yes"], + [gl_cv_func_isnanl_works="guessing no"]) + ;; + *) gl_cv_func_isnanl_works="guessing yes" ;; + esac + ]) ]) ]) diff --git a/gnulib/import/m4/largefile.m4 b/gnulib/import/m4/largefile.m4 index 8bbdfaac1db..65d5a15183e 100644 --- a/gnulib/import/m4/largefile.m4 +++ b/gnulib/import/m4/largefile.m4 @@ -1,10 +1,26 @@ # Enable large files on systems where this is not the default. -# Copyright 1992-1996, 1998-2016 Free Software Foundation, Inc. +# Copyright 1992-1996, 1998-2019 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. +# The following macro works around a problem in Autoconf's AC_FUNC_FSEEKO: +# It does not set _LARGEFILE_SOURCE=1 on HP-UX/ia64 32-bit, although this +# setting of _LARGEFILE_SOURCE is needed so that <stdio.h> declares fseeko +# and ftello in C++ mode as well. +AC_DEFUN([gl_SET_LARGEFILE_SOURCE], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_FUNC_FSEEKO + case "$host_os" in + hpux*) + AC_DEFINE([_LARGEFILE_SOURCE], [1], + [Define to 1 to make fseeko visible on some hosts (e.g. glibc 2.2).]) + ;; + esac +]) + # The following implementation works around a problem in autoconf <= 2.69; # AC_SYS_LARGEFILE does not configure for large inodes on Mac OS X 10.5, # or configures them incorrectly in some cases. @@ -56,7 +72,7 @@ rm -rf conftest*[]dnl # By default, many hosts won't let programs access large files; # one must use special compiler options to get large-file access to work. # For more details about this brain damage please see: -# http://www.unix-systems.org/version2/whatsnew/lfs20mar.html +# http://www.unix.org/version2/whatsnew/lfs20mar.html AC_DEFUN([AC_SYS_LARGEFILE], [AC_ARG_ENABLE(largefile, [ --disable-largefile omit support for large files]) @@ -126,9 +142,24 @@ AC_DEFUN([gl_LARGEFILE], else WINDOWS_64_BIT_OFF_T=0 fi - dnl But all native Windows platforms (including mingw64) have a 32-bit - dnl st_size member in 'struct stat'. - WINDOWS_64_BIT_ST_SIZE=1 + dnl Some mingw versions define, if _FILE_OFFSET_BITS=64, 'struct stat' + dnl to 'struct _stat32i64' or 'struct _stat64' (depending on + dnl _USE_32BIT_TIME_T), which has a 32-bit st_size member. + AC_CACHE_CHECK([for 64-bit st_size], [gl_cv_member_st_size_64], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <sys/types.h> + struct stat buf; + int verify_st_size_size[sizeof (buf.st_size) >= 8 ? 1 : -1]; + ]], + [[]])], + [gl_cv_member_st_size_64=yes], [gl_cv_member_st_size_64=no]) + ]) + if test $gl_cv_member_st_size_64 = no; then + WINDOWS_64_BIT_ST_SIZE=1 + else + WINDOWS_64_BIT_ST_SIZE=0 + fi ;; *) dnl Nothing to do on gnulib's side. diff --git a/gnulib/import/m4/lib-ld.m4 b/gnulib/import/m4/lib-ld.m4 index 6209de65d96..a18719630d5 100644 --- a/gnulib/import/m4/lib-ld.m4 +++ b/gnulib/import/m4/lib-ld.m4 @@ -1,5 +1,5 @@ -# lib-ld.m4 serial 6 -dnl Copyright (C) 1996-2003, 2009-2016 Free Software Foundation, Inc. +# lib-ld.m4 serial 9 +dnl Copyright (C) 1996-2003, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -47,73 +47,122 @@ if test "${PATH_SEPARATOR+set}" != set; then } fi -ac_prog=ld -if test "$GCC" = yes; then - # Check if gcc -print-prog-name=ld gives a path. +if test -n "$LD"; then + AC_MSG_CHECKING([for ld]) +elif test "$GCC" = yes; then AC_MSG_CHECKING([for ld used by $CC]) - case $host in - *-*-mingw*) - # gcc leaves a trailing carriage return which upsets mingw - ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;; - *) - ac_prog=`($CC -print-prog-name=ld) 2>&5` ;; - esac - case $ac_prog in - # Accept absolute paths. - [[\\/]]* | ?:[[\\/]]*) - re_direlt='/[[^/]][[^/]]*/\.\./' - # Canonicalize the pathname of ld - ac_prog=`echo "$ac_prog"| sed 's%\\\\%/%g'` - while echo "$ac_prog" | grep "$re_direlt" > /dev/null 2>&1; do - ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"` - done - test -z "$LD" && LD="$ac_prog" - ;; - "") - # If it fails, then pretend we aren't using GCC. - ac_prog=ld - ;; - *) - # If it is relative, then search for the first ld in PATH. - with_gnu_ld=unknown - ;; - esac elif test "$with_gnu_ld" = yes; then AC_MSG_CHECKING([for GNU ld]) else AC_MSG_CHECKING([for non-GNU ld]) fi -AC_CACHE_VAL([acl_cv_path_LD], -[if test -z "$LD"; then - acl_save_ifs="$IFS"; IFS=$PATH_SEPARATOR - for ac_dir in $PATH; do - IFS="$acl_save_ifs" - test -z "$ac_dir" && ac_dir=. - if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then - acl_cv_path_LD="$ac_dir/$ac_prog" - # Check to see if the program is GNU ld. I'd rather use --version, - # but apparently some variants of GNU ld only accept -v. - # Break only if it was the GNU/non-GNU ld that we prefer. - case `"$acl_cv_path_LD" -v 2>&1 </dev/null` in - *GNU* | *'with BFD'*) - test "$with_gnu_ld" != no && break - ;; - *) - test "$with_gnu_ld" != yes && break - ;; +if test -n "$LD"; then + # Let the user override the test with a path. + : +else + AC_CACHE_VAL([acl_cv_path_LD], + [ + acl_cv_path_LD= # Final result of this test + ac_prog=ld # Program to search in $PATH + if test "$GCC" = yes; then + # Check if gcc -print-prog-name=ld gives a path. + case $host in + *-*-mingw*) + # gcc leaves a trailing carriage return which upsets mingw + acl_output=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;; + *) + acl_output=`($CC -print-prog-name=ld) 2>&5` ;; + esac + case $acl_output in + # Accept absolute paths. + [[\\/]]* | ?:[[\\/]]*) + re_direlt='/[[^/]][[^/]]*/\.\./' + # Canonicalize the pathname of ld + acl_output=`echo "$acl_output" | sed 's%\\\\%/%g'` + while echo "$acl_output" | grep "$re_direlt" > /dev/null 2>&1; do + acl_output=`echo $acl_output | sed "s%$re_direlt%/%"` + done + # Got the pathname. No search in PATH is needed. + acl_cv_path_LD="$acl_output" + ac_prog= + ;; + "") + # If it fails, then pretend we aren't using GCC. + ;; + *) + # If it is relative, then search for the first ld in PATH. + with_gnu_ld=unknown + ;; esac fi - done - IFS="$acl_save_ifs" -else - acl_cv_path_LD="$LD" # Let the user override the test with a path. -fi]) -LD="$acl_cv_path_LD" + if test -n "$ac_prog"; then + # Search for $ac_prog in $PATH. + acl_save_ifs="$IFS"; IFS=$PATH_SEPARATOR + for ac_dir in $PATH; do + IFS="$acl_save_ifs" + test -z "$ac_dir" && ac_dir=. + if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then + acl_cv_path_LD="$ac_dir/$ac_prog" + # Check to see if the program is GNU ld. I'd rather use --version, + # but apparently some variants of GNU ld only accept -v. + # Break only if it was the GNU/non-GNU ld that we prefer. + case `"$acl_cv_path_LD" -v 2>&1 </dev/null` in + *GNU* | *'with BFD'*) + test "$with_gnu_ld" != no && break + ;; + *) + test "$with_gnu_ld" != yes && break + ;; + esac + fi + done + IFS="$acl_save_ifs" + fi + case $host in + *-*-aix*) + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __powerpc64__ || defined _ARCH_PPC64 + int ok; + #else + error fail + #endif + ]])], + [# The compiler produces 64-bit code. Add option '-b64' so that the + # linker groks 64-bit object files. + case "$acl_cv_path_LD " in + *" -b64 "*) ;; + *) acl_cv_path_LD="$acl_cv_path_LD -b64" ;; + esac + ], []) + ;; + sparc64-*-netbsd*) + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __sparcv9 || defined __arch64__ + int ok; + #else + error fail + #endif + ]])], + [], + [# The compiler produces 32-bit code. Add option '-m elf32_sparc' + # so that the linker groks 32-bit object files. + case "$acl_cv_path_LD " in + *" -m elf32_sparc "*) ;; + *) acl_cv_path_LD="$acl_cv_path_LD -m elf32_sparc" ;; + esac + ]) + ;; + esac + ]) + LD="$acl_cv_path_LD" +fi if test -n "$LD"; then AC_MSG_RESULT([$LD]) else AC_MSG_RESULT([no]) + AC_MSG_ERROR([no acceptable ld found in \$PATH]) fi -test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH]) AC_LIB_PROG_LD_GNU ]) diff --git a/gnulib/import/m4/lib-link.m4 b/gnulib/import/m4/lib-link.m4 index 2f518553bc4..b9fa364856d 100644 --- a/gnulib/import/m4/lib-link.m4 +++ b/gnulib/import/m4/lib-link.m4 @@ -1,12 +1,12 @@ -# lib-link.m4 serial 26 (gettext-0.18.2) -dnl Copyright (C) 2001-2016 Free Software Foundation, Inc. +# lib-link.m4 serial 31 +dnl Copyright (C) 2001-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible. -AC_PREREQ([2.54]) +AC_PREREQ([2.61]) dnl AC_LIB_LINKFLAGS(name [, dependencies]) searches for libname and dnl the libraries corresponding to explicit and implicit dependencies. @@ -124,8 +124,8 @@ dnl acl_hardcode_direct, dnl acl_hardcode_minus_L. AC_DEFUN([AC_LIB_RPATH], [ - dnl Tell automake >= 1.10 to complain if config.rpath is missing. - m4_ifdef([AC_REQUIRE_AUX_FILE], [AC_REQUIRE_AUX_FILE([config.rpath])]) + dnl Complain if config.rpath is missing. + AC_REQUIRE_AUX_FILE([config.rpath]) AC_REQUIRE([AC_PROG_CC]) dnl we use $CC, $GCC, $LDFLAGS AC_REQUIRE([AC_LIB_PROG_LD]) dnl we use $LD, $with_gnu_ld AC_REQUIRE([AC_CANONICAL_HOST]) dnl we use $host @@ -187,17 +187,17 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], pushdef([PACKUP],[m4_translit(PACK,[abcdefghijklmnopqrstuvwxyz./+-], [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])]) pushdef([PACKLIBS],[m4_ifdef([acl_frompackage_]NAME, [acl_libsinpackage_]PACKUP, lib[$1])]) - dnl Autoconf >= 2.61 supports dots in --with options. - pushdef([P_A_C_K],[m4_if(m4_version_compare(m4_defn([m4_PACKAGE_VERSION]),[2.61]),[-1],[m4_translit(PACK,[.],[_])],PACK)]) dnl By default, look in $includedir and $libdir. use_additional=yes AC_LIB_WITH_FINAL_PREFIX([ eval additional_includedir=\"$includedir\" eval additional_libdir=\"$libdir\" + eval additional_libdir2=\"$exec_prefix/$acl_libdirstem2\" + eval additional_libdir3=\"$exec_prefix/$acl_libdirstem3\" ]) - AC_ARG_WITH(P_A_C_K[-prefix], -[[ --with-]]P_A_C_K[[-prefix[=DIR] search for ]PACKLIBS[ in DIR/include and DIR/lib - --without-]]P_A_C_K[[-prefix don't search for ]PACKLIBS[ in includedir and libdir]], + AC_ARG_WITH(PACK[-prefix], +[[ --with-]]PACK[[-prefix[=DIR] search for ]PACKLIBS[ in DIR/include and DIR/lib + --without-]]PACK[[-prefix don't search for ]PACKLIBS[ in includedir and libdir]], [ if test "X$withval" = "Xno"; then use_additional=no @@ -206,17 +206,23 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], AC_LIB_WITH_FINAL_PREFIX([ eval additional_includedir=\"$includedir\" eval additional_libdir=\"$libdir\" + eval additional_libdir2=\"$exec_prefix/$acl_libdirstem2\" + eval additional_libdir3=\"$exec_prefix/$acl_libdirstem3\" ]) else additional_includedir="$withval/include" additional_libdir="$withval/$acl_libdirstem" - if test "$acl_libdirstem2" != "$acl_libdirstem" \ - && ! test -d "$withval/$acl_libdirstem"; then - additional_libdir="$withval/$acl_libdirstem2" - fi + additional_libdir2="$withval/$acl_libdirstem2" + additional_libdir3="$withval/$acl_libdirstem3" fi fi ]) + if test "X$additional_libdir2" = "X$additional_libdir"; then + additional_libdir2= + fi + if test "X$additional_libdir3" = "X$additional_libdir"; then + additional_libdir3= + fi dnl Search the library and its dependencies in $additional_libdir and dnl $LDFLAGS. Using breadth-first-seach. LIB[]NAME= @@ -272,48 +278,54 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], shrext= fi if test $use_additional = yes; then - dir="$additional_libdir" - dnl The same code as in the loop below: - dnl First look for a shared library. - if test -n "$acl_shlibext"; then - if test -f "$dir/$libname$shrext"; then - found_dir="$dir" - found_so="$dir/$libname$shrext" - else - if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then - ver=`(cd "$dir" && \ - for f in "$libname$shrext".*; do echo "$f"; done \ - | sed -e "s,^$libname$shrext\\\\.,," \ - | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \ - | sed 1q ) 2>/dev/null` - if test -n "$ver" && test -f "$dir/$libname$shrext.$ver"; then - found_dir="$dir" - found_so="$dir/$libname$shrext.$ver" + for additional_libdir_variable in additional_libdir additional_libdir2 additional_libdir3; do + if test "X$found_dir" = "X"; then + eval dir=\$$additional_libdir_variable + if test -n "$dir"; then + dnl The same code as in the loop below: + dnl First look for a shared library. + if test -n "$acl_shlibext"; then + if test -f "$dir/$libname$shrext" && acl_is_expected_elfclass < "$dir/$libname$shrext"; then + found_dir="$dir" + found_so="$dir/$libname$shrext" + else + if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then + ver=`(cd "$dir" && \ + for f in "$libname$shrext".*; do echo "$f"; done \ + | sed -e "s,^$libname$shrext\\\\.,," \ + | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \ + | sed 1q ) 2>/dev/null` + if test -n "$ver" && test -f "$dir/$libname$shrext.$ver" && acl_is_expected_elfclass < "$dir/$libname$shrext.$ver"; then + found_dir="$dir" + found_so="$dir/$libname$shrext.$ver" + fi + else + eval library_names=\"$acl_library_names_spec\" + for f in $library_names; do + if test -f "$dir/$f" && acl_is_expected_elfclass < "$dir/$f"; then + found_dir="$dir" + found_so="$dir/$f" + break + fi + done + fi + fi fi - else - eval library_names=\"$acl_library_names_spec\" - for f in $library_names; do - if test -f "$dir/$f"; then + dnl Then look for a static library. + if test "X$found_dir" = "X"; then + if test -f "$dir/$libname.$acl_libext" && ${AR-ar} -p "$dir/$libname.$acl_libext" | acl_is_expected_elfclass; then found_dir="$dir" - found_so="$dir/$f" - break + found_a="$dir/$libname.$acl_libext" fi - done + fi + if test "X$found_dir" != "X"; then + if test -f "$dir/$libname.la"; then + found_la="$dir/$libname.la" + fi + fi fi fi - fi - dnl Then look for a static library. - if test "X$found_dir" = "X"; then - if test -f "$dir/$libname.$acl_libext"; then - found_dir="$dir" - found_a="$dir/$libname.$acl_libext" - fi - fi - if test "X$found_dir" != "X"; then - if test -f "$dir/$libname.la"; then - found_la="$dir/$libname.la" - fi - fi + done fi if test "X$found_dir" = "X"; then for x in $LDFLAGS $LTLIB[]NAME; do @@ -323,7 +335,7 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], dir=`echo "X$x" | sed -e 's/^X-L//'` dnl First look for a shared library. if test -n "$acl_shlibext"; then - if test -f "$dir/$libname$shrext"; then + if test -f "$dir/$libname$shrext" && acl_is_expected_elfclass < "$dir/$libname$shrext"; then found_dir="$dir" found_so="$dir/$libname$shrext" else @@ -333,14 +345,14 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], | sed -e "s,^$libname$shrext\\\\.,," \ | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \ | sed 1q ) 2>/dev/null` - if test -n "$ver" && test -f "$dir/$libname$shrext.$ver"; then + if test -n "$ver" && test -f "$dir/$libname$shrext.$ver" && acl_is_expected_elfclass < "$dir/$libname$shrext.$ver"; then found_dir="$dir" found_so="$dir/$libname$shrext.$ver" fi else eval library_names=\"$acl_library_names_spec\" for f in $library_names; do - if test -f "$dir/$f"; then + if test -f "$dir/$f" && acl_is_expected_elfclass < "$dir/$f"; then found_dir="$dir" found_so="$dir/$f" break @@ -351,7 +363,7 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], fi dnl Then look for a static library. if test "X$found_dir" = "X"; then - if test -f "$dir/$libname.$acl_libext"; then + if test -f "$dir/$libname.$acl_libext" && ${AR-ar} -p "$dir/$libname.$acl_libext" | acl_is_expected_elfclass; then found_dir="$dir" found_a="$dir/$libname.$acl_libext" fi @@ -377,7 +389,8 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], dnl standard /usr/lib. if test "$enable_rpath" = no \ || test "X$found_dir" = "X/usr/$acl_libdirstem" \ - || test "X$found_dir" = "X/usr/$acl_libdirstem2"; then + || test "X$found_dir" = "X/usr/$acl_libdirstem2" \ + || test "X$found_dir" = "X/usr/$acl_libdirstem3"; then dnl No hardcoding is needed. LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" else @@ -477,6 +490,13 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], fi additional_includedir="$basedir/include" ;; + */$acl_libdirstem3 | */$acl_libdirstem3/) + basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem3/"'*$,,'` + if test "$name" = '$1'; then + LIB[]NAME[]_PREFIX="$basedir" + fi + additional_includedir="$basedir/include" + ;; esac if test "X$additional_includedir" != "X"; then dnl Potentially add $additional_includedir to $INCNAME. @@ -527,19 +547,21 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], for dep in $dependency_libs; do case "$dep" in -L*) - additional_libdir=`echo "X$dep" | sed -e 's/^X-L//'` - dnl Potentially add $additional_libdir to $LIBNAME and $LTLIBNAME. + dependency_libdir=`echo "X$dep" | sed -e 's/^X-L//'` + dnl Potentially add $dependency_libdir to $LIBNAME and $LTLIBNAME. dnl But don't add it dnl 1. if it's the standard /usr/lib, dnl 2. if it's /usr/local/lib and we are using GCC on Linux, dnl 3. if it's already present in $LDFLAGS or the already dnl constructed $LIBNAME, dnl 4. if it doesn't exist as a directory. - if test "X$additional_libdir" != "X/usr/$acl_libdirstem" \ - && test "X$additional_libdir" != "X/usr/$acl_libdirstem2"; then + if test "X$dependency_libdir" != "X/usr/$acl_libdirstem" \ + && test "X$dependency_libdir" != "X/usr/$acl_libdirstem2" \ + && test "X$dependency_libdir" != "X/usr/$acl_libdirstem3"; then haveit= - if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem" \ - || test "X$additional_libdir" = "X/usr/local/$acl_libdirstem2"; then + if test "X$dependency_libdir" = "X/usr/local/$acl_libdirstem" \ + || test "X$dependency_libdir" = "X/usr/local/$acl_libdirstem2" \ + || test "X$dependency_libdir" = "X/usr/local/$acl_libdirstem3"; then if test -n "$GCC"; then case $host_os in linux* | gnu* | k*bsd*-gnu) haveit=yes;; @@ -550,29 +572,29 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], haveit= for x in $LDFLAGS $LIB[]NAME; do AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) - if test "X$x" = "X-L$additional_libdir"; then + if test "X$x" = "X-L$dependency_libdir"; then haveit=yes break fi done if test -z "$haveit"; then - if test -d "$additional_libdir"; then - dnl Really add $additional_libdir to $LIBNAME. - LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$additional_libdir" + if test -d "$dependency_libdir"; then + dnl Really add $dependency_libdir to $LIBNAME. + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$dependency_libdir" fi fi haveit= for x in $LDFLAGS $LTLIB[]NAME; do AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) - if test "X$x" = "X-L$additional_libdir"; then + if test "X$x" = "X-L$dependency_libdir"; then haveit=yes break fi done if test -z "$haveit"; then - if test -d "$additional_libdir"; then - dnl Really add $additional_libdir to $LTLIBNAME. - LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$additional_libdir" + if test -d "$dependency_libdir"; then + dnl Really add $dependency_libdir to $LTLIBNAME. + LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$dependency_libdir" fi fi fi @@ -670,7 +692,6 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-R$found_dir" done fi - popdef([P_A_C_K]) popdef([PACKLIBS]) popdef([PACKUP]) popdef([PACK]) @@ -721,7 +742,8 @@ AC_DEFUN([AC_LIB_LINKFLAGS_FROM_LIBS], dir="$next" dnl No need to hardcode the standard /usr/lib. if test "X$dir" != "X/usr/$acl_libdirstem" \ - && test "X$dir" != "X/usr/$acl_libdirstem2"; then + && test "X$dir" != "X/usr/$acl_libdirstem2" \ + && test "X$dir" != "X/usr/$acl_libdirstem3"; then rpathdirs="$rpathdirs $dir" fi next= @@ -731,7 +753,8 @@ AC_DEFUN([AC_LIB_LINKFLAGS_FROM_LIBS], -L*) dir=`echo "X$opt" | sed -e 's,^X-L,,'` dnl No need to hardcode the standard /usr/lib. if test "X$dir" != "X/usr/$acl_libdirstem" \ - && test "X$dir" != "X/usr/$acl_libdirstem2"; then + && test "X$dir" != "X/usr/$acl_libdirstem2" \ + && test "X$dir" != "X/usr/$acl_libdirstem3"; then rpathdirs="$rpathdirs $dir" fi next= ;; diff --git a/gnulib/import/m4/lib-prefix.m4 b/gnulib/import/m4/lib-prefix.m4 index 6851031d391..52ea5aef15c 100644 --- a/gnulib/import/m4/lib-prefix.m4 +++ b/gnulib/import/m4/lib-prefix.m4 @@ -1,18 +1,11 @@ -# lib-prefix.m4 serial 7 (gettext-0.18) -dnl Copyright (C) 2001-2005, 2008-2016 Free Software Foundation, Inc. +# lib-prefix.m4 serial 17 +dnl Copyright (C) 2001-2005, 2008-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible. -dnl AC_LIB_ARG_WITH is synonymous to AC_ARG_WITH in autoconf-2.13, and -dnl similar to AC_ARG_WITH in autoconf 2.52...2.57 except that is doesn't -dnl require excessive bracketing. -ifdef([AC_HELP_STRING], -[AC_DEFUN([AC_LIB_ARG_WITH], [AC_ARG_WITH([$1],[[$2]],[$3],[$4])])], -[AC_DEFUN([AC_][LIB_ARG_WITH], [AC_ARG_WITH([$1],[$2],[$3],[$4])])]) - dnl AC_LIB_PREFIX adds to the CPPFLAGS and LDFLAGS the flags that are needed dnl to access previously installed libraries. The basic assumption is that dnl a user will want packages to use other packages he previously installed @@ -32,9 +25,9 @@ AC_DEFUN([AC_LIB_PREFIX], eval additional_includedir=\"$includedir\" eval additional_libdir=\"$libdir\" ]) - AC_LIB_ARG_WITH([lib-prefix], -[ --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib - --without-lib-prefix don't search for libraries in includedir and libdir], + AC_ARG_WITH([lib-prefix], +[[ --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib + --without-lib-prefix don't search for libraries in includedir and libdir]], [ if test "X$withval" = "Xno"; then use_additional=no @@ -154,71 +147,174 @@ AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX], ]) dnl AC_LIB_PREPARE_MULTILIB creates -dnl - a variable acl_libdirstem, containing the basename of the libdir, either -dnl "lib" or "lib64" or "lib/64", -dnl - a variable acl_libdirstem2, as a secondary possible value for -dnl acl_libdirstem, either the same as acl_libdirstem or "lib/sparcv9" or -dnl "lib/amd64". +dnl - a function acl_is_expected_elfclass, that tests whether standard input +dn; has a 32-bit or 64-bit ELF header, depending on the host CPU ABI, +dnl - 3 variables acl_libdirstem, acl_libdirstem2, acl_libdirstem3, containing +dnl the basename of the libdir to try in turn, either "lib" or "lib64" or +dnl "lib/64" or "lib32" or "lib/sparcv9" or "lib/amd64" or similar. AC_DEFUN([AC_LIB_PREPARE_MULTILIB], [ - dnl There is no formal standard regarding lib and lib64. - dnl On glibc systems, the current practice is that on a system supporting + dnl There is no formal standard regarding lib, lib32, and lib64. + dnl On most glibc systems, the current practice is that on a system supporting dnl 32-bit and 64-bit instruction sets or ABIs, 64-bit libraries go under - dnl $prefix/lib64 and 32-bit libraries go under $prefix/lib. We determine - dnl the compiler's default mode by looking at the compiler's library search - dnl path. If at least one of its elements ends in /lib64 or points to a - dnl directory whose absolute pathname ends in /lib64, we assume a 64-bit ABI. - dnl Otherwise we use the default, namely "lib". + dnl $prefix/lib64 and 32-bit libraries go under $prefix/lib. However, on + dnl Arch Linux based distributions, it's the opposite: 32-bit libraries go + dnl under $prefix/lib32 and 64-bit libraries go under $prefix/lib. + dnl We determine the compiler's default mode by looking at the compiler's + dnl library search path. If at least one of its elements ends in /lib64 or + dnl points to a directory whose absolute pathname ends in /lib64, we use that + dnl for 64-bit ABIs. Similarly for 32-bit ABIs. Otherwise we use the default, + dnl namely "lib". dnl On Solaris systems, the current practice is that on a system supporting dnl 32-bit and 64-bit instruction sets or ABIs, 64-bit libraries go under dnl $prefix/lib/64 (which is a symlink to either $prefix/lib/sparcv9 or dnl $prefix/lib/amd64) and 32-bit libraries go under $prefix/lib. AC_REQUIRE([AC_CANONICAL_HOST]) - acl_libdirstem=lib - acl_libdirstem2= - case "$host_os" in - solaris*) - dnl See Solaris 10 Software Developer Collection > Solaris 64-bit Developer's Guide > The Development Environment - dnl <http://docs.sun.com/app/docs/doc/816-5138/dev-env?l=en&a=view>. - dnl "Portable Makefiles should refer to any library directories using the 64 symbolic link." - dnl But we want to recognize the sparcv9 or amd64 subdirectory also if the - dnl symlink is missing, so we set acl_libdirstem2 too. - AC_CACHE_CHECK([for 64-bit host], [gl_cv_solaris_64bit], - [AC_EGREP_CPP([sixtyfour bits], [ -#ifdef _LP64 -sixtyfour bits -#endif - ], [gl_cv_solaris_64bit=yes], [gl_cv_solaris_64bit=no]) - ]) - if test $gl_cv_solaris_64bit = yes; then - acl_libdirstem=lib/64 - case "$host_cpu" in - sparc*) acl_libdirstem2=lib/sparcv9 ;; - i*86 | x86_64) acl_libdirstem2=lib/amd64 ;; - esac - fi - ;; - *) - searchpath=`(LC_ALL=C $CC -print-search-dirs) 2>/dev/null | sed -n -e 's,^libraries: ,,p' | sed -e 's,^=,,'` - if test -n "$searchpath"; then - acl_save_IFS="${IFS= }"; IFS=":" - for searchdir in $searchpath; do - if test -d "$searchdir"; then - case "$searchdir" in - */lib64/ | */lib64 ) acl_libdirstem=lib64 ;; - */../ | */.. ) - # Better ignore directories of this form. They are misleading. - ;; - *) searchdir=`cd "$searchdir" && pwd` - case "$searchdir" in - */lib64 ) acl_libdirstem=lib64 ;; - esac ;; - esac - fi - done - IFS="$acl_save_IFS" - fi - ;; - esac - test -n "$acl_libdirstem2" || acl_libdirstem2="$acl_libdirstem" + AC_REQUIRE([gl_HOST_CPU_C_ABI_32BIT]) + + AC_CACHE_CHECK([for ELF binary format], [gl_cv_elf], + [AC_EGREP_CPP([Extensible Linking Format], + [#ifdef __ELF__ + Extensible Linking Format + #endif + ], + [gl_cv_elf=yes], + [gl_cv_elf=no]) + ]) + if test $gl_cv_elf; then + # Extract the ELF class of a file (5th byte) in decimal. + # Cf. https://en.wikipedia.org/wiki/Executable_and_Linkable_Format#File_header + if od -A x < /dev/null >/dev/null 2>/dev/null; then + # Use POSIX od. + func_elfclass () + { + od -A n -t d1 -j 4 -N 1 + } + else + # Use BSD hexdump. + func_elfclass () + { + dd bs=1 count=1 skip=4 2>/dev/null | hexdump -e '1/1 "%3d "' + echo + } + fi +changequote(,)dnl + case $HOST_CPU_C_ABI_32BIT in + yes) + # 32-bit ABI. + acl_is_expected_elfclass () + { + test "`func_elfclass | sed -e 's/[ ]//g'`" = 1 + } + ;; + no) + # 64-bit ABI. + acl_is_expected_elfclass () + { + test "`func_elfclass | sed -e 's/[ ]//g'`" = 2 + } + ;; + *) + # Unknown. + acl_is_expected_elfclass () + { + : + } + ;; + esac +changequote([,])dnl + else + acl_is_expected_elfclass () + { + : + } + fi + + dnl Allow the user to override the result by setting acl_cv_libdirstems. + AC_CACHE_CHECK([for the common suffixes of directories in the library search path], + [acl_cv_libdirstems], + [dnl Try 'lib' first, because that's the default for libdir in GNU, see + dnl <https://www.gnu.org/prep/standards/html_node/Directory-Variables.html>. + acl_libdirstem=lib + acl_libdirstem2= + acl_libdirstem3= + case "$host_os" in + solaris*) + dnl See Solaris 10 Software Developer Collection > Solaris 64-bit Developer's Guide > The Development Environment + dnl <https://docs.oracle.com/cd/E19253-01/816-5138/dev-env/index.html>. + dnl "Portable Makefiles should refer to any library directories using the 64 symbolic link." + dnl But we want to recognize the sparcv9 or amd64 subdirectory also if the + dnl symlink is missing, so we set acl_libdirstem2 too. + if test $HOST_CPU_C_ABI_32BIT = no; then + acl_libdirstem2=lib/64 + case "$host_cpu" in + sparc*) acl_libdirstem3=lib/sparcv9 ;; + i*86 | x86_64) acl_libdirstem3=lib/amd64 ;; + esac + fi + ;; + *) + dnl If $CC generates code for a 32-bit ABI, the libraries are + dnl surely under $prefix/lib or $prefix/lib32, not $prefix/lib64. + dnl Similarly, if $CC generates code for a 64-bit ABI, the libraries + dnl are surely under $prefix/lib or $prefix/lib64, not $prefix/lib32. + dnl Find the compiler's search path. However, non-system compilers + dnl sometimes have odd library search paths. But we can't simply invoke + dnl '/usr/bin/gcc -print-search-dirs' because that would not take into + dnl account the -m32/-m31 or -m64 options from the $CC or $CFLAGS. + searchpath=`(LC_ALL=C $CC $CPPFLAGS $CFLAGS -print-search-dirs) 2>/dev/null \ + | sed -n -e 's,^libraries: ,,p' | sed -e 's,^=,,'` + if test $HOST_CPU_C_ABI_32BIT != no; then + # 32-bit or unknown ABI. + if test -d /usr/lib32; then + acl_libdirstem2=lib32 + fi + fi + if test $HOST_CPU_C_ABI_32BIT != yes; then + # 64-bit or unknown ABI. + if test -d /usr/lib64; then + acl_libdirstem3=lib64 + fi + fi + if test -n "$searchpath"; then + acl_save_IFS="${IFS= }"; IFS=":" + for searchdir in $searchpath; do + if test -d "$searchdir"; then + case "$searchdir" in + */lib32/ | */lib32 ) acl_libdirstem2=lib32 ;; + */lib64/ | */lib64 ) acl_libdirstem3=lib64 ;; + */../ | */.. ) + # Better ignore directories of this form. They are misleading. + ;; + *) searchdir=`cd "$searchdir" && pwd` + case "$searchdir" in + */lib32 ) acl_libdirstem2=lib32 ;; + */lib64 ) acl_libdirstem3=lib64 ;; + esac ;; + esac + fi + done + IFS="$acl_save_IFS" + if test $HOST_CPU_C_ABI_32BIT = yes; then + # 32-bit ABI. + acl_libdirstem3= + fi + if test $HOST_CPU_C_ABI_32BIT = no; then + # 64-bit ABI. + acl_libdirstem2= + fi + fi + ;; + esac + test -n "$acl_libdirstem2" || acl_libdirstem2="$acl_libdirstem" + test -n "$acl_libdirstem3" || acl_libdirstem3="$acl_libdirstem" + acl_cv_libdirstems="$acl_libdirstem,$acl_libdirstem2,$acl_libdirstem3" + ]) + dnl Decompose acl_cv_libdirstems into acl_libdirstem, acl_libdirstem2, and + dnl acl_libdirstem3. +changequote(,)dnl + acl_libdirstem=`echo "$acl_cv_libdirstems" | sed -e 's/,.*//'` + acl_libdirstem2=`echo "$acl_cv_libdirstems" | sed -e 's/^[^,]*,//' -e 's/,.*//'` + acl_libdirstem3=`echo "$acl_cv_libdirstems" | sed -e 's/^[^,]*,[^,]*,//' -e 's/,.*//'` +changequote([,])dnl ]) diff --git a/gnulib/import/m4/limits-h.m4 b/gnulib/import/m4/limits-h.m4 index 31fdf0a779e..68f724c777e 100644 --- a/gnulib/import/m4/limits-h.m4 +++ b/gnulib/import/m4/limits-h.m4 @@ -1,6 +1,6 @@ dnl Check whether limits.h has needed features. -dnl Copyright 2016 Free Software Foundation, Inc. +dnl Copyright 2016-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -11,14 +11,18 @@ AC_DEFUN_ONCE([gl_LIMITS_H], [ gl_CHECK_NEXT_HEADERS([limits.h]) - AC_CACHE_CHECK([whether limits.h has ULLONG_WIDTH etc.], + AC_CACHE_CHECK([whether limits.h has LLONG_MAX, WORD_BIT, ULLONG_WIDTH etc.], [gl_cv_header_limits_width], [AC_COMPILE_IFELSE( - [AC_LANG_PROGRAM([[#ifndef __STDC_WANT_IEC_60559_BFP_EXT__ - #define __STDC_WANT_IEC_60559_BFP_EXT__ 1 - #endif - #include <limits.h> - int ullw = ULLONG_WIDTH;]])], + [AC_LANG_PROGRAM( + [[#ifndef __STDC_WANT_IEC_60559_BFP_EXT__ + #define __STDC_WANT_IEC_60559_BFP_EXT__ 1 + #endif + #include <limits.h> + long long llm = LLONG_MAX; + int wb = WORD_BIT; + int ullw = ULLONG_WIDTH; + ]])], [gl_cv_header_limits_width=yes], [gl_cv_header_limits_width=no])]) if test "$gl_cv_header_limits_width" = yes; then @@ -29,3 +33,11 @@ AC_DEFUN_ONCE([gl_LIMITS_H], AC_SUBST([LIMITS_H]) AM_CONDITIONAL([GL_GENERATE_LIMITS_H], [test -n "$LIMITS_H"]) ]) + +dnl Unconditionally enables the replacement of <limits.h>. +AC_DEFUN([gl_REPLACE_LIMITS_H], +[ + AC_REQUIRE([gl_LIMITS_H]) + LIMITS_H='limits.h' + AM_CONDITIONAL([GL_GENERATE_LIMITS_H], [test -n "$LIMITS_H"]) +]) diff --git a/gnulib/import/m4/localcharset.m4 b/gnulib/import/m4/localcharset.m4 index 22c311b9858..2a7f82d06f0 100644 --- a/gnulib/import/m4/localcharset.m4 +++ b/gnulib/import/m4/localcharset.m4 @@ -1,5 +1,5 @@ -# localcharset.m4 serial 7 -dnl Copyright (C) 2002, 2004, 2006, 2009-2016 Free Software Foundation, Inc. +# localcharset.m4 serial 8 +dnl Copyright (C) 2002, 2004, 2006, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -8,10 +8,4 @@ AC_DEFUN([gl_LOCALCHARSET], [ dnl Prerequisites of lib/localcharset.c. AC_REQUIRE([AM_LANGINFO_CODESET]) - AC_REQUIRE([gl_FCNTL_O_FLAGS]) - AC_CHECK_DECLS_ONCE([getc_unlocked]) - - dnl Prerequisites of the lib/Makefile.am snippet. - AC_REQUIRE([AC_CANONICAL_HOST]) - AC_REQUIRE([gl_GLIBC21]) ]) diff --git a/gnulib/import/m4/locale-fr.m4 b/gnulib/import/m4/locale-fr.m4 index 92896a0391d..cfa068d594e 100644 --- a/gnulib/import/m4/locale-fr.m4 +++ b/gnulib/import/m4/locale-fr.m4 @@ -1,5 +1,5 @@ -# locale-fr.m4 serial 17 -dnl Copyright (C) 2003, 2005-2016 Free Software Foundation, Inc. +# locale-fr.m4 serial 19 +dnl Copyright (C) 2003, 2005-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -24,8 +24,14 @@ changequote(,)dnl struct tm t; char buf[16]; int main () { + /* On BeOS and Haiku, locales are not implemented in libc. Rather, libintl + imitates locale dependent behaviour by looking at the environment + variables, and all locales use the UTF-8 encoding. */ +#if defined __BEOS__ || defined __HAIKU__ + return 1; +#else /* Check whether the given locale name is recognized by the system. */ -#if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__ +# if defined _WIN32 && !defined __CYGWIN__ /* On native Windows, setlocale(category, "") looks at the system settings, not at the environment variables. Also, when an encoding suffix such as ".65001" or ".54936" is specified, it succeeds but sets the LC_CTYPE @@ -33,9 +39,9 @@ int main () { if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0) return 1; -#else +# else if (setlocale (LC_ALL, "") == NULL) return 1; -#endif +# endif /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646". On Mac OS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET) is empty, and the behaviour of Tcl 8.4 in this locale is not useful. @@ -44,32 +50,33 @@ int main () { some unit tests fail. On MirBSD 10, when an unsupported locale is specified, setlocale() succeeds but then nl_langinfo(CODESET) is "UTF-8". */ -#if HAVE_LANGINFO_CODESET +# if HAVE_LANGINFO_CODESET { const char *cs = nl_langinfo (CODESET); if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0 || strcmp (cs, "UTF-8") == 0) return 1; } -#endif -#ifdef __CYGWIN__ +# endif +# ifdef __CYGWIN__ /* On Cygwin, avoid locale names without encoding suffix, because the locale_charset() function relies on the encoding suffix. Note that LC_ALL is set on the command line. */ if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1; -#endif +# endif /* Check whether in the abbreviation of the second month, the second character (should be U+00E9: LATIN SMALL LETTER E WITH ACUTE) is only one byte long. This excludes the UTF-8 encoding. */ t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4; if (strftime (buf, sizeof (buf), "%b", &t) < 3 || buf[2] != 'v') return 1; -#if !defined __BIONIC__ /* Bionic libc's 'struct lconv' is just a dummy. */ +# if !defined __BIONIC__ /* Bionic libc's 'struct lconv' is just a dummy. */ /* Check whether the decimal separator is a comma. On NetBSD 3.0 in the fr_FR.ISO8859-1 locale, localeconv()->decimal_point are nl_langinfo(RADIXCHAR) are both ".". */ if (localeconv () ->decimal_point[0] != ',') return 1; -#endif +# endif return 0; +#endif } changequote([,])dnl ])]) @@ -153,7 +160,7 @@ int main () { variables, and all locales use the UTF-8 encoding. */ #if !(defined __BEOS__ || defined __HAIKU__) /* Check whether the given locale name is recognized by the system. */ -# if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__ +# if defined _WIN32 && !defined __CYGWIN__ /* On native Windows, setlocale(category, "") looks at the system settings, not at the environment variables. Also, when an encoding suffix such as ".65001" or ".54936" is specified, it succeeds but sets the LC_CTYPE diff --git a/gnulib/import/m4/locale-ja.m4 b/gnulib/import/m4/locale-ja.m4 index f222a086963..487f68bdc3f 100644 --- a/gnulib/import/m4/locale-ja.m4 +++ b/gnulib/import/m4/locale-ja.m4 @@ -1,5 +1,5 @@ -# locale-ja.m4 serial 12 -dnl Copyright (C) 2003, 2005-2016 Free Software Foundation, Inc. +# locale-ja.m4 serial 14 +dnl Copyright (C) 2003, 2005-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -25,9 +25,14 @@ struct tm t; char buf[16]; int main () { - const char *p; + /* On BeOS and Haiku, locales are not implemented in libc. Rather, libintl + imitates locale dependent behaviour by looking at the environment + variables, and all locales use the UTF-8 encoding. */ +#if defined __BEOS__ || defined __HAIKU__ + return 1; +#else /* Check whether the given locale name is recognized by the system. */ -#if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__ +# if defined _WIN32 && !defined __CYGWIN__ /* On native Windows, setlocale(category, "") looks at the system settings, not at the environment variables. Also, when an encoding suffix such as ".65001" or ".54936" is specified, it succeeds but sets the LC_CTYPE @@ -35,9 +40,9 @@ int main () if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0) return 1; -#else +# else if (setlocale (LC_ALL, "") == NULL) return 1; -#endif +# endif /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646". On Mac OS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET) is empty, and the behaviour of Tcl 8.4 in this locale is not useful. @@ -46,32 +51,36 @@ int main () some unit tests fail. On MirBSD 10, when an unsupported locale is specified, setlocale() succeeds but then nl_langinfo(CODESET) is "UTF-8". */ -#if HAVE_LANGINFO_CODESET +# if HAVE_LANGINFO_CODESET { const char *cs = nl_langinfo (CODESET); if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0 || strcmp (cs, "UTF-8") == 0) return 1; } -#endif -#ifdef __CYGWIN__ +# endif +# ifdef __CYGWIN__ /* On Cygwin, avoid locale names without encoding suffix, because the locale_charset() function relies on the encoding suffix. Note that LC_ALL is set on the command line. */ if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1; -#endif +# endif /* Check whether MB_CUR_MAX is > 1. This excludes the dysfunctional locales on Cygwin 1.5.x. */ if (MB_CUR_MAX == 1) return 1; /* Check whether in a month name, no byte in the range 0x80..0x9F occurs. This excludes the UTF-8 encoding (except on MirBSD). */ - t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4; - if (strftime (buf, sizeof (buf), "%B", &t) < 2) return 1; - for (p = buf; *p != '\0'; p++) - if ((unsigned char) *p >= 0x80 && (unsigned char) *p < 0xa0) - return 1; + { + const char *p; + t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4; + if (strftime (buf, sizeof (buf), "%B", &t) < 2) return 1; + for (p = buf; *p != '\0'; p++) + if ((unsigned char) *p >= 0x80 && (unsigned char) *p < 0xa0) + return 1; + } return 0; +#endif } changequote([,])dnl ])]) diff --git a/gnulib/import/m4/locale-zh.m4 b/gnulib/import/m4/locale-zh.m4 index 2271f7783bc..8b813263ae5 100644 --- a/gnulib/import/m4/locale-zh.m4 +++ b/gnulib/import/m4/locale-zh.m4 @@ -1,5 +1,5 @@ -# locale-zh.m4 serial 12 -dnl Copyright (C) 2003, 2005-2016 Free Software Foundation, Inc. +# locale-zh.m4 serial 14 +dnl Copyright (C) 2003, 2005-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -26,9 +26,14 @@ struct tm t; char buf[16]; int main () { - const char *p; + /* On BeOS and Haiku, locales are not implemented in libc. Rather, libintl + imitates locale dependent behaviour by looking at the environment + variables, and all locales use the UTF-8 encoding. */ +#if defined __BEOS__ || defined __HAIKU__ + return 1; +#else /* Check whether the given locale name is recognized by the system. */ -#if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__ +# if defined _WIN32 && !defined __CYGWIN__ /* On native Windows, setlocale(category, "") looks at the system settings, not at the environment variables. Also, when an encoding suffix such as ".65001" or ".54936" is specified, it succeeds but sets the LC_CTYPE @@ -36,9 +41,9 @@ int main () if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0) return 1; -#else +# else if (setlocale (LC_ALL, "") == NULL) return 1; -#endif +# endif /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646". On Mac OS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET) is empty, and the behaviour of Tcl 8.4 in this locale is not useful. @@ -47,32 +52,36 @@ int main () some unit tests fail. On MirBSD 10, when an unsupported locale is specified, setlocale() succeeds but then nl_langinfo(CODESET) is "UTF-8". */ -#if HAVE_LANGINFO_CODESET +# if HAVE_LANGINFO_CODESET { const char *cs = nl_langinfo (CODESET); if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0 || strcmp (cs, "UTF-8") == 0) return 1; } -#endif -#ifdef __CYGWIN__ +# endif +# ifdef __CYGWIN__ /* On Cygwin, avoid locale names without encoding suffix, because the locale_charset() function relies on the encoding suffix. Note that LC_ALL is set on the command line. */ if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1; -#endif +# endif /* Check whether in a month name, no byte in the range 0x80..0x9F occurs. This excludes the UTF-8 encoding (except on MirBSD). */ - t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4; - if (strftime (buf, sizeof (buf), "%B", &t) < 2) return 1; - for (p = buf; *p != '\0'; p++) - if ((unsigned char) *p >= 0x80 && (unsigned char) *p < 0xa0) - return 1; + { + const char *p; + t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4; + if (strftime (buf, sizeof (buf), "%B", &t) < 2) return 1; + for (p = buf; *p != '\0'; p++) + if ((unsigned char) *p >= 0x80 && (unsigned char) *p < 0xa0) + return 1; + } /* Check whether a typical GB18030 multibyte sequence is recognized as a single wide character. This excludes the GB2312 and GBK encodings. */ if (mblen ("\203\062\332\066", 5) != 4) return 1; return 0; +#endif } changequote([,])dnl ])]) diff --git a/gnulib/import/m4/localtime-buffer.m4 b/gnulib/import/m4/localtime-buffer.m4 new file mode 100644 index 00000000000..6d9982879bd --- /dev/null +++ b/gnulib/import/m4/localtime-buffer.m4 @@ -0,0 +1,21 @@ +# localtime-buffer.m4 serial 1 +dnl Copyright (C) 2017-2019 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_LOCALTIME_BUFFER_DEFAULTS], +[ + NEED_LOCALTIME_BUFFER=0 +]) + +dnl Macro invoked from other modules, to signal that the compilation of +dnl module 'localtime-buffer' is needed. +AC_DEFUN([gl_LOCALTIME_BUFFER_NEEDED], +[ + AC_REQUIRE([gl_LOCALTIME_BUFFER_DEFAULTS]) + AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS]) + NEED_LOCALTIME_BUFFER=1 + REPLACE_GMTIME=1 + REPLACE_LOCALTIME=1 +]) diff --git a/gnulib/import/m4/lock.m4 b/gnulib/import/m4/lock.m4 index 1e83e23651f..93b76fa44db 100644 --- a/gnulib/import/m4/lock.m4 +++ b/gnulib/import/m4/lock.m4 @@ -1,5 +1,5 @@ -# lock.m4 serial 13 (gettext-0.18.2) -dnl Copyright (C) 2005-2016 Free Software Foundation, Inc. +# lock.m4 serial 14 +dnl Copyright (C) 2005-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -12,11 +12,16 @@ AC_DEFUN([gl_LOCK], if test "$gl_threads_api" = posix; then # OSF/1 4.0 and Mac OS X 10.1 lack the pthread_rwlock_t type and the # pthread_rwlock_* functions. + has_rwlock=false AC_CHECK_TYPE([pthread_rwlock_t], - [AC_DEFINE([HAVE_PTHREAD_RWLOCK], [1], + [has_rwlock=true + AC_DEFINE([HAVE_PTHREAD_RWLOCK], [1], [Define if the POSIX multithreading library has read/write locks.])], [], [#include <pthread.h>]) + if $has_rwlock; then + gl_PTHREAD_RWLOCK_RDLOCK_PREFER_WRITER + fi # glibc defines PTHREAD_MUTEX_RECURSIVE as enum, not as a macro. AC_COMPILE_IFELSE([ AC_LANG_PROGRAM( diff --git a/gnulib/import/m4/longlong.m4 b/gnulib/import/m4/longlong.m4 index 36d8b124212..08d0e36300d 100644 --- a/gnulib/import/m4/longlong.m4 +++ b/gnulib/import/m4/longlong.m4 @@ -1,14 +1,15 @@ -# longlong.m4 serial 17 -dnl Copyright (C) 1999-2007, 2009-2016 Free Software Foundation, Inc. +# longlong.m4 serial 18 +dnl Copyright (C) 1999-2007, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Paul Eggert. +AC_PREREQ([2.62]) + # Define HAVE_LONG_LONG_INT if 'long long int' works. -# This fixes a bug in Autoconf 2.61, and can be faster -# than what's in Autoconf 2.62 through 2.68. +# This can be faster than what's in Autoconf 2.62 through 2.68. # Note: If the type 'long long int' exists but is only 32 bits large # (as on some very old compilers), HAVE_LONG_LONG_INT will not be @@ -56,8 +57,7 @@ AC_DEFUN([AC_TYPE_LONG_LONG_INT], ]) # Define HAVE_UNSIGNED_LONG_LONG_INT if 'unsigned long long int' works. -# This fixes a bug in Autoconf 2.61, and can be faster -# than what's in Autoconf 2.62 through 2.68. +# This can be faster than what's in Autoconf 2.62 through 2.68. # Note: If the type 'unsigned long long int' exists but is only 32 bits # large (as on some very old compilers), AC_TYPE_UNSIGNED_LONG_LONG_INT diff --git a/gnulib/import/m4/lstat.m4 b/gnulib/import/m4/lstat.m4 index e143d5c8b58..be6d3f24b43 100644 --- a/gnulib/import/m4/lstat.m4 +++ b/gnulib/import/m4/lstat.m4 @@ -1,6 +1,6 @@ -# serial 27 +# serial 33 -# Copyright (C) 1997-2001, 2003-2016 Free Software Foundation, Inc. +# Copyright (C) 1997-2001, 2003-2019 Free Software Foundation, Inc. # # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, @@ -10,14 +10,15 @@ dnl From Jim Meyering. AC_DEFUN([gl_FUNC_LSTAT], [ + AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) dnl If lstat does not exist, the replacement <sys/stat.h> does dnl "#define lstat stat", and lstat.c is a no-op. AC_CHECK_FUNCS_ONCE([lstat]) if test $ac_cv_func_lstat = yes; then AC_REQUIRE([gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK]) - case "$gl_cv_func_lstat_dereferences_slashed_symlink" in - *no) + case $host_os,$gl_cv_func_lstat_dereferences_slashed_symlink in + solaris* | *no) REPLACE_LSTAT=1 ;; esac @@ -33,6 +34,7 @@ AC_DEFUN([gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK], [ dnl We don't use AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK any more, because it dnl is no longer maintained in Autoconf and because it invokes AC_LIBOBJ. + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether lstat correctly handles trailing slash], [gl_cv_func_lstat_dereferences_slashed_symlink], [rm -f conftest.sym conftest.file @@ -51,12 +53,18 @@ AC_DEFUN([gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK], [gl_cv_func_lstat_dereferences_slashed_symlink=yes], [gl_cv_func_lstat_dereferences_slashed_symlink=no], [case "$host_os" in - *-gnu*) + linux-* | linux) + # Guess yes on Linux systems. + gl_cv_func_lstat_dereferences_slashed_symlink="guessing yes" ;; + *-gnu* | gnu*) # Guess yes on glibc systems. gl_cv_func_lstat_dereferences_slashed_symlink="guessing yes" ;; - *) - # If we don't know, assume the worst. + mingw*) + # Guess no on native Windows. gl_cv_func_lstat_dereferences_slashed_symlink="guessing no" ;; + *) + # If we don't know, obey --enable-cross-guesses. + gl_cv_func_lstat_dereferences_slashed_symlink="$gl_cross_guess_normal" ;; esac ]) rm -f conftest.sym conftest.file diff --git a/gnulib/import/m4/malloc.m4 b/gnulib/import/m4/malloc.m4 index c393690e27d..6555dee6500 100644 --- a/gnulib/import/m4/malloc.m4 +++ b/gnulib/import/m4/malloc.m4 @@ -1,13 +1,11 @@ -# malloc.m4 serial 15 -dnl Copyright (C) 2007, 2009-2016 Free Software Foundation, Inc. +# malloc.m4 serial 20 +dnl Copyright (C) 2007, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. -m4_version_prereq([2.70], [] ,[ - # This is adapted with modifications from upstream Autoconf here: -# http://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=04be2b7a29d65d9a08e64e8e56e594c91749598c +# https://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=04be2b7a29d65d9a08e64e8e56e594c91749598c AC_DEFUN([_AC_FUNC_MALLOC_IF], [ AC_REQUIRE([AC_HEADER_STDC])dnl @@ -32,19 +30,24 @@ AC_DEFUN([_AC_FUNC_MALLOC_IF], [ac_cv_func_malloc_0_nonnull=no], [case "$host_os" in # Guess yes on platforms where we know the result. - *-gnu* | freebsd* | netbsd* | openbsd* \ + *-gnu* | gnu* | *-musl* | freebsd* | netbsd* | openbsd* \ | hpux* | solaris* | cygwin* | mingw*) - ac_cv_func_malloc_0_nonnull=yes ;; - # If we don't know, assume the worst. - *) ac_cv_func_malloc_0_nonnull=no ;; + ac_cv_func_malloc_0_nonnull="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) ac_cv_func_malloc_0_nonnull="$gl_cross_guess_normal" ;; esac ]) ]) - AS_IF([test $ac_cv_func_malloc_0_nonnull = yes], [$1], [$2]) + case "$ac_cv_func_malloc_0_nonnull" in + *yes) + $1 + ;; + *) + $2 + ;; + esac ])# _AC_FUNC_MALLOC_IF -]) - # gl_FUNC_MALLOC_GNU # ------------------ # Test whether 'malloc (0)' is handled like in GNU libc, and replace malloc if @@ -91,7 +94,7 @@ AC_DEFUN([gl_CHECK_MALLOC_POSIX], AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[]], - [[#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ + [[#if defined _WIN32 && ! defined __CYGWIN__ choke me #endif ]])], diff --git a/gnulib/import/m4/malloca.m4 b/gnulib/import/m4/malloca.m4 index b368b20e50d..820f40a8a88 100644 --- a/gnulib/import/m4/malloca.m4 +++ b/gnulib/import/m4/malloca.m4 @@ -1,5 +1,5 @@ # malloca.m4 serial 1 -dnl Copyright (C) 2003-2004, 2006-2007, 2009-2016 Free Software Foundation, +dnl Copyright (C) 2003-2004, 2006-2007, 2009-2019 Free Software Foundation, dnl Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, diff --git a/gnulib/import/m4/math_h.m4 b/gnulib/import/m4/math_h.m4 index 35d07ee5f54..3d5af84f518 100644 --- a/gnulib/import/m4/math_h.m4 +++ b/gnulib/import/m4/math_h.m4 @@ -1,5 +1,5 @@ -# math_h.m4 serial 114 -dnl Copyright (C) 2007-2016 Free Software Foundation, Inc. +# math_h.m4 serial 119 +dnl Copyright (C) 2007-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -256,13 +256,22 @@ AC_DEFUN([gl_MATH_H_DEFAULTS], HAVE_DECL_TRUNC=1; AC_SUBST([HAVE_DECL_TRUNC]) HAVE_DECL_TRUNCF=1; AC_SUBST([HAVE_DECL_TRUNCF]) HAVE_DECL_TRUNCL=1; AC_SUBST([HAVE_DECL_TRUNCL]) + REPLACE_ACOSF=0; AC_SUBST([REPLACE_ACOSF]) + REPLACE_ASINF=0; AC_SUBST([REPLACE_ASINF]) + REPLACE_ATANF=0; AC_SUBST([REPLACE_ATANF]) + REPLACE_ATAN2F=0; AC_SUBST([REPLACE_ATAN2F]) REPLACE_CBRTF=0; AC_SUBST([REPLACE_CBRTF]) REPLACE_CBRTL=0; AC_SUBST([REPLACE_CBRTL]) REPLACE_CEIL=0; AC_SUBST([REPLACE_CEIL]) REPLACE_CEILF=0; AC_SUBST([REPLACE_CEILF]) REPLACE_CEILL=0; AC_SUBST([REPLACE_CEILL]) + REPLACE_COSF=0; AC_SUBST([REPLACE_COSF]) + REPLACE_COSHF=0; AC_SUBST([REPLACE_COSHF]) + REPLACE_EXPF=0; AC_SUBST([REPLACE_EXPF]) + REPLACE_EXPL=0; AC_SUBST([REPLACE_EXPL]) REPLACE_EXPM1=0; AC_SUBST([REPLACE_EXPM1]) REPLACE_EXPM1F=0; AC_SUBST([REPLACE_EXPM1F]) + REPLACE_EXPM1L=0; AC_SUBST([REPLACE_EXPM1L]) REPLACE_EXP2=0; AC_SUBST([REPLACE_EXP2]) REPLACE_EXP2L=0; AC_SUBST([REPLACE_EXP2L]) REPLACE_FABSL=0; AC_SUBST([REPLACE_FABSL]) @@ -284,6 +293,7 @@ AC_DEFUN([gl_MATH_H_DEFAULTS], REPLACE_HYPOTL=0; AC_SUBST([REPLACE_HYPOTL]) REPLACE_ILOGB=0; AC_SUBST([REPLACE_ILOGB]) REPLACE_ILOGBF=0; AC_SUBST([REPLACE_ILOGBF]) + REPLACE_ILOGBL=0; AC_SUBST([REPLACE_ILOGBL]) REPLACE_ISFINITE=0; AC_SUBST([REPLACE_ISFINITE]) REPLACE_ISINF=0; AC_SUBST([REPLACE_ISINF]) REPLACE_ISNAN=0; AC_SUBST([REPLACE_ISNAN]) @@ -310,12 +320,18 @@ AC_DEFUN([gl_MATH_H_DEFAULTS], REPLACE_REMAINDER=0; AC_SUBST([REPLACE_REMAINDER]) REPLACE_REMAINDERF=0; AC_SUBST([REPLACE_REMAINDERF]) REPLACE_REMAINDERL=0; AC_SUBST([REPLACE_REMAINDERL]) + REPLACE_RINTL=0; AC_SUBST([REPLACE_RINTL]) REPLACE_ROUND=0; AC_SUBST([REPLACE_ROUND]) REPLACE_ROUNDF=0; AC_SUBST([REPLACE_ROUNDF]) REPLACE_ROUNDL=0; AC_SUBST([REPLACE_ROUNDL]) REPLACE_SIGNBIT=0; AC_SUBST([REPLACE_SIGNBIT]) REPLACE_SIGNBIT_USING_GCC=0; AC_SUBST([REPLACE_SIGNBIT_USING_GCC]) + REPLACE_SINF=0; AC_SUBST([REPLACE_SINF]) + REPLACE_SINHF=0; AC_SUBST([REPLACE_SINHF]) + REPLACE_SQRTF=0; AC_SUBST([REPLACE_SQRTF]) REPLACE_SQRTL=0; AC_SUBST([REPLACE_SQRTL]) + REPLACE_TANF=0; AC_SUBST([REPLACE_TANF]) + REPLACE_TANHF=0; AC_SUBST([REPLACE_TANHF]) REPLACE_TRUNC=0; AC_SUBST([REPLACE_TRUNC]) REPLACE_TRUNCF=0; AC_SUBST([REPLACE_TRUNCF]) REPLACE_TRUNCL=0; AC_SUBST([REPLACE_TRUNCL]) diff --git a/gnulib/import/m4/mbrtowc.m4 b/gnulib/import/m4/mbrtowc.m4 index d370fccf06d..16e166b458d 100644 --- a/gnulib/import/m4/mbrtowc.m4 +++ b/gnulib/import/m4/mbrtowc.m4 @@ -1,5 +1,5 @@ -# mbrtowc.m4 serial 27 -*- coding: utf-8 -*- -dnl Copyright (C) 2001-2002, 2004-2005, 2008-2016 Free Software Foundation, +# mbrtowc.m4 serial 33 -*- coding: utf-8 -*- +dnl Copyright (C) 2001-2002, 2004-2005, 2008-2019 Free Software Foundation, dnl Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -126,6 +126,7 @@ AC_DEFUN([gl_MBRTOWC_INCOMPLETE_STATE], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([gt_LOCALE_JA]) + AC_REQUIRE([gt_LOCALE_FR_UTF8]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether mbrtowc handles incomplete characters], [gl_cv_func_mbrtowc_incomplete_state], @@ -164,13 +165,46 @@ int main () memset (&state, '\0', sizeof (mbstate_t)); if (mbrtowc (&wc, input + 1, 1, &state) == (size_t)(-2)) if (mbsinit (&state)) - return 1; + return 2; } return 0; }]])], [gl_cv_func_mbrtowc_incomplete_state=yes], [gl_cv_func_mbrtowc_incomplete_state=no], [:]) + else + if test $LOCALE_FR_UTF8 != none; then + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <locale.h> +#include <string.h> +/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before + <wchar.h>. + BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be + included before <wchar.h>. */ +#include <stddef.h> +#include <stdio.h> +#include <time.h> +#include <wchar.h> +int main () +{ + if (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL) + { + const char input[] = "B\303\274\303\237er"; /* "Büßer" */ + mbstate_t state; + wchar_t wc; + + memset (&state, '\0', sizeof (mbstate_t)); + if (mbrtowc (&wc, input + 1, 1, &state) == (size_t)(-2)) + if (mbsinit (&state)) + return 2; + } + return 0; +}]])], + [gl_cv_func_mbrtowc_incomplete_state=yes], + [gl_cv_func_mbrtowc_incomplete_state=no], + [:]) + fi fi ]) ]) @@ -224,7 +258,7 @@ int main () memset (&state, '\0', sizeof (mbstate_t)); if (mbrtowc (&wc, input + 3, 6, &state) != 4 && mbtowc (&wc, input + 3, 6) == 4) - return 1; + return 2; } return 0; }]])], @@ -352,7 +386,7 @@ int main () mbrtowc (&wc, NULL, 5, &state); /* Check that wc was not modified. */ if (wc != (wchar_t) 0xBADFACE) - return 1; + return 2; } return 0; }]])], @@ -539,7 +573,7 @@ int main () memset (&state, '\0', sizeof (mbstate_t)); if (mbrtowc (&wc, "", 1, &state) != 0) - return 1; + return 2; } return 0; }]])], @@ -563,10 +597,11 @@ AC_DEFUN([gl_MBRTOWC_EMPTY_INPUT], dnl is present. changequote(,)dnl case "$host_os" in - # Guess no on AIX and glibc systems. - aix* | *-gnu*) - gl_cv_func_mbrtowc_empty_input="guessing no" ;; - *) gl_cv_func_mbrtowc_empty_input="guessing yes" ;; + # Guess no on AIX and glibc systems. + aix* | *-gnu* | gnu*) gl_cv_func_mbrtowc_empty_input="guessing no" ;; + # Guess yes on native Windows. + mingw*) gl_cv_func_mbrtowc_empty_input="guessing yes" ;; + *) gl_cv_func_mbrtowc_empty_input="guessing yes" ;; esac changequote([,])dnl AC_RUN_IFELSE( @@ -592,12 +627,13 @@ dnl https://sourceware.org/bugzilla/show_bug.cgi?id=19932 AC_DEFUN([gl_MBRTOWC_C_LOCALE], [ + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether the C locale is free of encoding errors], [gl_cv_C_locale_sans_EILSEQ], [ dnl Initial guess, used when cross-compiling or when no suitable locale dnl is present. - gl_cv_C_locale_sans_EILSEQ="guessing no" + gl_cv_C_locale_sans_EILSEQ="$gl_cross_guess_normal" AC_RUN_IFELSE( [AC_LANG_PROGRAM( @@ -608,7 +644,7 @@ AC_DEFUN([gl_MBRTOWC_C_LOCALE], int i; char *locale = setlocale (LC_ALL, "C"); if (! locale) - return 1; + return 2; for (i = CHAR_MIN; i <= CHAR_MAX; i++) { char c = i; @@ -616,17 +652,23 @@ AC_DEFUN([gl_MBRTOWC_C_LOCALE], mbstate_t mbs = { 0, }; size_t ss = mbrtowc (&wc, &c, 1, &mbs); if (1 < ss) - return 1; + return 3; } return 0; ]])], [gl_cv_C_locale_sans_EILSEQ=yes], [gl_cv_C_locale_sans_EILSEQ=no], - [:])]) + [case "$host_os" in + # Guess yes on native Windows. + mingw*) gl_cv_C_locale_sans_EILSEQ="guessing yes" ;; + esac + ]) + ]) ]) # Prerequisites of lib/mbrtowc.c. AC_DEFUN([gl_PREREQ_MBRTOWC], [ + AC_REQUIRE([AC_C_INLINE]) : ]) @@ -639,7 +681,7 @@ AC_DEFUN([AC_FUNC_MBRTOWC], [ dnl Same as AC_FUNC_MBRTOWC in autoconf-2.60. AC_CACHE_CHECK([whether mbrtowc and mbstate_t are properly declared], - gl_cv_func_mbrtowc, + [gl_cv_func_mbrtowc], [AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be @@ -655,8 +697,8 @@ AC_DEFUN([AC_FUNC_MBRTOWC], size_t n = 1; mbstate_t state; return ! (sizeof state && (mbrtowc) (&wc, s, n, &state));]])], - gl_cv_func_mbrtowc=yes, - gl_cv_func_mbrtowc=no)]) + [gl_cv_func_mbrtowc=yes], + [gl_cv_func_mbrtowc=no])]) if test $gl_cv_func_mbrtowc = yes; then AC_DEFINE([HAVE_MBRTOWC], [1], [Define to 1 if mbrtowc and mbstate_t are properly declared.]) diff --git a/gnulib/import/m4/mbsinit.m4 b/gnulib/import/m4/mbsinit.m4 index 88f08367a26..e2f45e75a1e 100644 --- a/gnulib/import/m4/mbsinit.m4 +++ b/gnulib/import/m4/mbsinit.m4 @@ -1,5 +1,5 @@ # mbsinit.m4 serial 8 -dnl Copyright (C) 2008, 2010-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2008, 2010-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/mbsrtowcs.m4 b/gnulib/import/m4/mbsrtowcs.m4 index 3b5dc6ea0e6..cbdde2c55e7 100644 --- a/gnulib/import/m4/mbsrtowcs.m4 +++ b/gnulib/import/m4/mbsrtowcs.m4 @@ -1,5 +1,5 @@ # mbsrtowcs.m4 serial 13 -dnl Copyright (C) 2008-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2008-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/mbstate_t.m4 b/gnulib/import/m4/mbstate_t.m4 index 0a8eae25469..f669753c07e 100644 --- a/gnulib/import/m4/mbstate_t.m4 +++ b/gnulib/import/m4/mbstate_t.m4 @@ -1,5 +1,5 @@ # mbstate_t.m4 serial 13 -dnl Copyright (C) 2000-2002, 2008-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2000-2002, 2008-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/memchr.m4 b/gnulib/import/m4/memchr.m4 index 25d32f0ec99..c12d20ac76a 100644 --- a/gnulib/import/m4/memchr.m4 +++ b/gnulib/import/m4/memchr.m4 @@ -1,11 +1,13 @@ -# memchr.m4 serial 12 -dnl Copyright (C) 2002-2004, 2009-2016 Free Software Foundation, Inc. +# memchr.m4 serial 15 +dnl Copyright (C) 2002-2004, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN_ONCE([gl_FUNC_MEMCHR], [ + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + dnl Check for prerequisites for memory fence checks. gl_FUNC_MMAP_ANON AC_CHECK_HEADERS_ONCE([sys/mman.h]) @@ -23,10 +25,12 @@ AC_DEFUN_ONCE([gl_FUNC_MEMCHR], if test $HAVE_MEMCHR = 1; then # Detect platform-specific bugs in some versions of glibc: # memchr should not dereference anything with length 0 - # http://bugzilla.redhat.com/499689 + # https://bugzilla.redhat.com/show_bug.cgi?id=499689 # memchr should not dereference overestimated length after a match - # http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=521737 - # http://sourceware.org/bugzilla/show_bug.cgi?id=10162 + # https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=521737 + # https://sourceware.org/bugzilla/show_bug.cgi?id=10162 + # memchr should cast the second argument to 'unsigned char'. + # This bug exists in Android 4.3. # Assume that memchr works on platforms that lack mprotect. AC_CACHE_CHECK([whether memchr works], [gl_cv_func_memchr_works], [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ @@ -72,13 +76,33 @@ AC_DEFUN_ONCE([gl_FUNC_MEMCHR], if (memchr (fence - 1, 0, 3) != fence - 1) result |= 4; } + /* Test against bug on Android 4.3. */ + { + char input[3]; + input[0] = 'a'; + input[1] = 'b'; + input[2] = 'c'; + if (memchr (input, 0x789abc00 | 'b', 3) != input + 1) + result |= 8; + } return result; -]])], [gl_cv_func_memchr_works=yes], [gl_cv_func_memchr_works=no], - [dnl Be pessimistic for now. - gl_cv_func_memchr_works="guessing no"])]) - if test "$gl_cv_func_memchr_works" != yes; then - REPLACE_MEMCHR=1 - fi +]])], + [gl_cv_func_memchr_works=yes], + [gl_cv_func_memchr_works=no], + [case "$host_os" in + # Guess no on Android. + linux*-android*) gl_cv_func_memchr_works="guessing no" ;; + # Guess yes on native Windows. + mingw*) gl_cv_func_memchr_works="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_memchr_works="$gl_cross_guess_normal" ;; + esac + ]) + ]) + case "$gl_cv_func_memchr_works" in + *yes) ;; + *) REPLACE_MEMCHR=1 ;; + esac fi ]) diff --git a/gnulib/import/m4/memmem.m4 b/gnulib/import/m4/memmem.m4 index 981ede76b40..dcccefa7045 100644 --- a/gnulib/import/m4/memmem.m4 +++ b/gnulib/import/m4/memmem.m4 @@ -1,5 +1,5 @@ -# memmem.m4 serial 24 -dnl Copyright (C) 2002-2004, 2007-2016 Free Software Foundation, Inc. +# memmem.m4 serial 26 +dnl Copyright (C) 2002-2004, 2007-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -21,7 +21,7 @@ AC_DEFUN([gl_FUNC_MEMMEM_SIMPLE], if test $ac_cv_have_decl_memmem = no; then HAVE_DECL_MEMMEM=0 else - dnl Detect http://sourceware.org/bugzilla/show_bug.cgi?id=12092. + dnl Detect https://sourceware.org/bugzilla/show_bug.cgi?id=12092. dnl Also check that we handle empty needles correctly. AC_CACHE_CHECK([whether memmem works], [gl_cv_func_memmem_works_always], @@ -68,7 +68,7 @@ AC_DEFUN([gl_FUNC_MEMMEM_SIMPLE], #endif ], [gl_cv_func_memmem_works_always="guessing yes"], - [gl_cv_func_memmem_works_always="guessing no"]) + [gl_cv_func_memmem_works_always="$gl_cross_guess_normal"]) ]) ]) case "$gl_cv_func_memmem_works_always" in @@ -113,6 +113,9 @@ static void quit (int sig) { _exit (sig + 128); } if (!memmem (haystack, 2 * m + 1, needle, m + 1)) result |= 1; } + /* Free allocated memory, in case some sanitizer is watching. */ + free (haystack); + free (needle); return result; ]])], [gl_cv_func_memmem_works_fast=yes], [gl_cv_func_memmem_works_fast=no], @@ -135,7 +138,7 @@ static void quit (int sig) { _exit (sig + 128); } #endif ], [gl_cv_func_memmem_works_fast="guessing yes"], - [gl_cv_func_memmem_works_fast="guessing no"]) + [gl_cv_func_memmem_works_fast="$gl_cross_guess_normal"]) ]) ]) case "$gl_cv_func_memmem_works_fast" in diff --git a/gnulib/import/m4/mempcpy.m4 b/gnulib/import/m4/mempcpy.m4 index 6991f29f033..b6090eed285 100644 --- a/gnulib/import/m4/mempcpy.m4 +++ b/gnulib/import/m4/mempcpy.m4 @@ -1,5 +1,5 @@ # mempcpy.m4 serial 11 -dnl Copyright (C) 2003-2004, 2006-2007, 2009-2016 Free Software Foundation, +dnl Copyright (C) 2003-2004, 2006-2007, 2009-2019 Free Software Foundation, dnl Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, diff --git a/gnulib/import/m4/memrchr.m4 b/gnulib/import/m4/memrchr.m4 index 6e7df5c6d54..e907590e38a 100644 --- a/gnulib/import/m4/memrchr.m4 +++ b/gnulib/import/m4/memrchr.m4 @@ -1,5 +1,5 @@ # memrchr.m4 serial 10 -dnl Copyright (C) 2002-2003, 2005-2007, 2009-2016 Free Software Foundation, +dnl Copyright (C) 2002-2003, 2005-2007, 2009-2019 Free Software Foundation, dnl Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, diff --git a/gnulib/import/m4/mkdir.m4 b/gnulib/import/m4/mkdir.m4 index 574092bb258..6451fb7248f 100644 --- a/gnulib/import/m4/mkdir.m4 +++ b/gnulib/import/m4/mkdir.m4 @@ -1,6 +1,6 @@ -# serial 11 +# serial 16 -# Copyright (C) 2001, 2003-2004, 2006, 2008-2016 Free Software Foundation, Inc. +# Copyright (C) 2001, 2003-2004, 2006, 2008-2019 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. @@ -23,10 +23,21 @@ AC_DEFUN([gl_FUNC_MKDIR], [gl_cv_func_mkdir_trailing_slash_works=yes], [gl_cv_func_mkdir_trailing_slash_works=no], [case "$host_os" in - # Guess yes on glibc systems. - *-gnu*) gl_cv_func_mkdir_trailing_slash_works="guessing yes" ;; - # If we don't know, assume the worst. - *) gl_cv_func_mkdir_trailing_slash_works="guessing no" ;; + # Guess yes on Linux systems. + linux-* | linux) gl_cv_func_mkdir_trailing_slash_works="guessing yes" ;; + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_mkdir_trailing_slash_works="guessing yes" ;; + # Guess yes on MSVC, no on mingw. + mingw*) AC_EGREP_CPP([Known], [ +#ifdef _MSC_VER + Known +#endif + ], + [gl_cv_func_mkdir_trailing_slash_works="guessing yes"], + [gl_cv_func_mkdir_trailing_slash_works="guessing no"]) + ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_mkdir_trailing_slash_works="$gl_cross_guess_normal" ;; esac ]) rm -rf conftest.dir @@ -49,10 +60,14 @@ AC_DEFUN([gl_FUNC_MKDIR], [gl_cv_func_mkdir_trailing_dot_works=yes], [gl_cv_func_mkdir_trailing_dot_works=no], [case "$host_os" in - # Guess yes on glibc systems. - *-gnu*) gl_cv_func_mkdir_trailing_dot_works="guessing yes" ;; - # If we don't know, assume the worst. - *) gl_cv_func_mkdir_trailing_dot_works="guessing no" ;; + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_mkdir_trailing_dot_works="guessing yes" ;; + # Guess yes on musl systems. + *-musl*) gl_cv_func_mkdir_trailing_dot_works="guessing yes" ;; + # Guess no on native Windows. + mingw*) gl_cv_func_mkdir_trailing_dot_works="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_mkdir_trailing_dot_works="$gl_cross_guess_normal" ;; esac ]) rm -rf conftest.dir diff --git a/gnulib/import/m4/mkdtemp.m4 b/gnulib/import/m4/mkdtemp.m4 index a2edd395005..412bb39b280 100644 --- a/gnulib/import/m4/mkdtemp.m4 +++ b/gnulib/import/m4/mkdtemp.m4 @@ -1,5 +1,5 @@ # mkdtemp.m4 serial 8 -dnl Copyright (C) 2001-2003, 2006-2007, 2009-2016 Free Software Foundation, +dnl Copyright (C) 2001-2003, 2006-2007, 2009-2019 Free Software Foundation, dnl Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, diff --git a/gnulib/import/m4/mkostemp.m4 b/gnulib/import/m4/mkostemp.m4 index 1f44a0390aa..56f566c9127 100644 --- a/gnulib/import/m4/mkostemp.m4 +++ b/gnulib/import/m4/mkostemp.m4 @@ -1,5 +1,5 @@ # mkostemp.m4 serial 2 -dnl Copyright (C) 2009-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/mmap-anon.m4 b/gnulib/import/m4/mmap-anon.m4 index 853c89dc9b5..50c380824c7 100644 --- a/gnulib/import/m4/mmap-anon.m4 +++ b/gnulib/import/m4/mmap-anon.m4 @@ -1,5 +1,5 @@ # mmap-anon.m4 serial 10 -dnl Copyright (C) 2005, 2007, 2009-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2005, 2007, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/mode_t.m4 b/gnulib/import/m4/mode_t.m4 index 0cd40dba493..ba840dca99d 100644 --- a/gnulib/import/m4/mode_t.m4 +++ b/gnulib/import/m4/mode_t.m4 @@ -1,5 +1,5 @@ # mode_t.m4 serial 2 -dnl Copyright (C) 2009-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/msvc-inval.m4 b/gnulib/import/m4/msvc-inval.m4 index f5e4c89309e..4b958762d2a 100644 --- a/gnulib/import/m4/msvc-inval.m4 +++ b/gnulib/import/m4/msvc-inval.m4 @@ -1,5 +1,5 @@ # msvc-inval.m4 serial 1 -dnl Copyright (C) 2011-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2011-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/msvc-nothrow.m4 b/gnulib/import/m4/msvc-nothrow.m4 index 58f5c0bc205..7e73b40b632 100644 --- a/gnulib/import/m4/msvc-nothrow.m4 +++ b/gnulib/import/m4/msvc-nothrow.m4 @@ -1,5 +1,5 @@ # msvc-nothrow.m4 serial 1 -dnl Copyright (C) 2011-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2011-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/multiarch.m4 b/gnulib/import/m4/multiarch.m4 index 43b5d057508..d48316e0ed7 100644 --- a/gnulib/import/m4/multiarch.m4 +++ b/gnulib/import/m4/multiarch.m4 @@ -1,5 +1,5 @@ # multiarch.m4 serial 7 -dnl Copyright (C) 2008-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2008-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/netinet_in_h.m4 b/gnulib/import/m4/netinet_in_h.m4 index 93dcc689478..0f96caee5b6 100644 --- a/gnulib/import/m4/netinet_in_h.m4 +++ b/gnulib/import/m4/netinet_in_h.m4 @@ -1,5 +1,5 @@ # netinet_in_h.m4 serial 5 -dnl Copyright (C) 2006-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2006-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/nocrash.m4 b/gnulib/import/m4/nocrash.m4 index d8dd8f13a12..8577038d796 100644 --- a/gnulib/import/m4/nocrash.m4 +++ b/gnulib/import/m4/nocrash.m4 @@ -1,5 +1,5 @@ -# nocrash.m4 serial 4 -dnl Copyright (C) 2005, 2009-2016 Free Software Foundation, Inc. +# nocrash.m4 serial 5 +dnl Copyright (C) 2005, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -53,7 +53,7 @@ nocrash_init (void) /* Allocate a port on which the thread shall listen for exceptions. */ if (mach_port_allocate (self, MACH_PORT_RIGHT_RECEIVE, &our_exception_port) == KERN_SUCCESS) { - /* See http://web.mit.edu/darwin/src/modules/xnu/osfmk/man/mach_port_insert_right.html. */ + /* See https://web.mit.edu/darwin/src/modules/xnu/osfmk/man/mach_port_insert_right.html. */ if (mach_port_insert_right (self, our_exception_port, our_exception_port, MACH_MSG_TYPE_MAKE_SEND) == KERN_SUCCESS) { @@ -72,14 +72,14 @@ nocrash_init (void) for a particular thread. This has the effect that when our exception port gets the message, the thread specific exception port has already been asked, and we don't need to bother about it. - See http://web.mit.edu/darwin/src/modules/xnu/osfmk/man/task_set_exception_ports.html. */ + See https://web.mit.edu/darwin/src/modules/xnu/osfmk/man/task_set_exception_ports.html. */ task_set_exception_ports (self, mask, our_exception_port, EXCEPTION_DEFAULT, MACHINE_THREAD_STATE); } } } } -#elif (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ +#elif defined _WIN32 && ! defined __CYGWIN__ /* Avoid a crash on native Windows. */ #define WIN32_LEAN_AND_MEAN #include <windows.h> diff --git a/gnulib/import/m4/off_t.m4 b/gnulib/import/m4/off_t.m4 index 282751b47b4..711a2d44fbe 100644 --- a/gnulib/import/m4/off_t.m4 +++ b/gnulib/import/m4/off_t.m4 @@ -1,5 +1,5 @@ # off_t.m4 serial 1 -dnl Copyright (C) 2012-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2012-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/onceonly.m4 b/gnulib/import/m4/onceonly.m4 deleted file mode 100644 index c0c9e2c8100..00000000000 --- a/gnulib/import/m4/onceonly.m4 +++ /dev/null @@ -1,104 +0,0 @@ -# onceonly.m4 serial 9 -dnl Copyright (C) 2002-2003, 2005-2006, 2008-2016 Free Software Foundation, -dnl Inc. -dnl -dnl This file is free software; you can redistribute it and/or modify -dnl it under the terms of the GNU General Public License as published by -dnl the Free Software Foundation; either version 3 of the License, or -dnl (at your option) any later version. -dnl -dnl This file is distributed in the hope that it will be useful, -dnl but WITHOUT ANY WARRANTY; without even the implied warranty of -dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -dnl GNU General Public License for more details. -dnl -dnl You should have received a copy of the GNU General Public License -dnl along with this file. If not, see <http://www.gnu.org/licenses/>. -dnl -dnl As a special exception to the GNU General Public License, -dnl this file may be distributed as part of a program -dnl that contains a configuration script generated by Autoconf, under -dnl the same distribution terms as the rest of that program. - -dnl This file defines some "once only" variants of standard autoconf macros. -dnl AC_CHECK_HEADERS_ONCE like AC_CHECK_HEADERS -dnl AC_CHECK_FUNCS_ONCE like AC_CHECK_FUNCS -dnl AC_CHECK_DECLS_ONCE like AC_CHECK_DECLS -dnl AC_REQUIRE([AC_FUNC_STRCOLL]) like AC_FUNC_STRCOLL -dnl The advantage is that the check for each of the headers/functions/decls -dnl will be put only once into the 'configure' file. It keeps the size of -dnl the 'configure' file down, and avoids redundant output when 'configure' -dnl is run. -dnl The drawback is that the checks cannot be conditionalized. If you write -dnl if some_condition; then gl_CHECK_HEADERS(stdlib.h); fi -dnl inside an AC_DEFUNed function, the gl_CHECK_HEADERS macro call expands to -dnl empty, and the check will be inserted before the body of the AC_DEFUNed -dnl function. - -dnl The original code implemented AC_CHECK_HEADERS_ONCE and AC_CHECK_FUNCS_ONCE -dnl in terms of AC_DEFUN and AC_REQUIRE. This implementation uses diversions to -dnl named sections DEFAULTS and INIT_PREPARE in order to check all requested -dnl headers at once, thus reducing the size of 'configure'. It is known to work -dnl with autoconf 2.57..2.62 at least . The size reduction is ca. 9%. - -dnl Autoconf version 2.59 plus gnulib is required; this file is not needed -dnl with Autoconf 2.60 or greater. But note that autoconf's implementation of -dnl AC_CHECK_DECLS_ONCE expects a comma-separated list of symbols as first -dnl argument! -AC_PREREQ([2.59]) - -# AC_CHECK_HEADERS_ONCE(HEADER1 HEADER2 ...) is a once-only variant of -# AC_CHECK_HEADERS(HEADER1 HEADER2 ...). -AC_DEFUN([AC_CHECK_HEADERS_ONCE], [ - : - m4_foreach_w([gl_HEADER_NAME], [$1], [ - AC_DEFUN([gl_CHECK_HEADER_]m4_quote(m4_translit(gl_HEADER_NAME, - [./-], [___])), [ - m4_divert_text([INIT_PREPARE], - [gl_header_list="$gl_header_list gl_HEADER_NAME"]) - gl_HEADERS_EXPANSION - AH_TEMPLATE(AS_TR_CPP([HAVE_]m4_defn([gl_HEADER_NAME])), - [Define to 1 if you have the <]m4_defn([gl_HEADER_NAME])[> header file.]) - ]) - AC_REQUIRE([gl_CHECK_HEADER_]m4_quote(m4_translit(gl_HEADER_NAME, - [./-], [___]))) - ]) -]) -m4_define([gl_HEADERS_EXPANSION], [ - m4_divert_text([DEFAULTS], [gl_header_list=]) - AC_CHECK_HEADERS([$gl_header_list]) - m4_define([gl_HEADERS_EXPANSION], []) -]) - -# AC_CHECK_FUNCS_ONCE(FUNC1 FUNC2 ...) is a once-only variant of -# AC_CHECK_FUNCS(FUNC1 FUNC2 ...). -AC_DEFUN([AC_CHECK_FUNCS_ONCE], [ - : - m4_foreach_w([gl_FUNC_NAME], [$1], [ - AC_DEFUN([gl_CHECK_FUNC_]m4_defn([gl_FUNC_NAME]), [ - m4_divert_text([INIT_PREPARE], - [gl_func_list="$gl_func_list gl_FUNC_NAME"]) - gl_FUNCS_EXPANSION - AH_TEMPLATE(AS_TR_CPP([HAVE_]m4_defn([gl_FUNC_NAME])), - [Define to 1 if you have the ']m4_defn([gl_FUNC_NAME])[' function.]) - ]) - AC_REQUIRE([gl_CHECK_FUNC_]m4_defn([gl_FUNC_NAME])) - ]) -]) -m4_define([gl_FUNCS_EXPANSION], [ - m4_divert_text([DEFAULTS], [gl_func_list=]) - AC_CHECK_FUNCS([$gl_func_list]) - m4_define([gl_FUNCS_EXPANSION], []) -]) - -# AC_CHECK_DECLS_ONCE(DECL1 DECL2 ...) is a once-only variant of -# AC_CHECK_DECLS(DECL1, DECL2, ...). -AC_DEFUN([AC_CHECK_DECLS_ONCE], [ - : - m4_foreach_w([gl_DECL_NAME], [$1], [ - AC_DEFUN([gl_CHECK_DECL_]m4_defn([gl_DECL_NAME]), [ - AC_CHECK_DECLS(m4_defn([gl_DECL_NAME])) - ]) - AC_REQUIRE([gl_CHECK_DECL_]m4_defn([gl_DECL_NAME])) - ]) -]) diff --git a/gnulib/import/m4/open-cloexec.m4 b/gnulib/import/m4/open-cloexec.m4 new file mode 100644 index 00000000000..52498d953b8 --- /dev/null +++ b/gnulib/import/m4/open-cloexec.m4 @@ -0,0 +1,21 @@ +# Test whether O_CLOEXEC is defined. + +dnl Copyright 2017-2019 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_PREPROC_O_CLOEXEC], +[ + AC_CACHE_CHECK([for O_CLOEXEC], + [gl_cv_macro_O_CLOEXEC], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[#include <fcntl.h> + #ifndef O_CLOEXEC + choke me; + #endif + ]], + [[return O_CLOEXEC;]])], + [gl_cv_macro_O_CLOEXEC=yes], + [gl_cv_macro_O_CLOEXEC=no])]) +]) diff --git a/gnulib/import/m4/open-slash.m4 b/gnulib/import/m4/open-slash.m4 new file mode 100644 index 00000000000..a8756ae8fea --- /dev/null +++ b/gnulib/import/m4/open-slash.m4 @@ -0,0 +1,59 @@ +# open-slash.m4 serial 1 +dnl Copyright (C) 2007-2019 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Tests whether open() and creat() recognize a trailing slash. +dnl Sets gl_cv_func_open_slash. +AC_DEFUN([gl_OPEN_TRAILING_SLASH_BUG], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + dnl open("foo/") should not create a file when the file name has a + dnl trailing slash. FreeBSD only has the problem on symlinks. + AC_CHECK_FUNCS_ONCE([lstat]) + AC_CACHE_CHECK([whether open recognizes a trailing slash], + [gl_cv_func_open_slash], + [# Assume that if we have lstat, we can also check symlinks. + if test $ac_cv_func_lstat = yes; then + touch conftest.tmp + ln -s conftest.tmp conftest.lnk + fi + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <fcntl.h> +#if HAVE_UNISTD_H +# include <unistd.h> +#endif +int main () +{ + int result = 0; +#if HAVE_LSTAT + if (open ("conftest.lnk/", O_RDONLY) != -1) + result |= 1; +#endif + if (open ("conftest.sl/", O_CREAT, 0600) >= 0) + result |= 2; + return result; +}]])], + [gl_cv_func_open_slash=yes], + [gl_cv_func_open_slash=no], + [ +changequote(,)dnl + case "$host_os" in + freebsd* | aix* | hpux* | solaris2.[0-9] | solaris2.[0-9].*) + gl_cv_func_open_slash="guessing no" ;; + *) + gl_cv_func_open_slash="guessing yes" ;; + esac +changequote([,])dnl + ]) + rm -f conftest.sl conftest.tmp conftest.lnk + ]) + case "$gl_cv_func_open_slash" in + *no) + AC_DEFINE([OPEN_TRAILING_SLASH_BUG], [1], + [Define to 1 if open() fails to recognize a trailing slash.]) + ;; + esac +]) diff --git a/gnulib/import/m4/open.m4 b/gnulib/import/m4/open.m4 index 53d30381dd7..6cf0bebb176 100644 --- a/gnulib/import/m4/open.m4 +++ b/gnulib/import/m4/open.m4 @@ -1,5 +1,5 @@ -# open.m4 serial 14 -dnl Copyright (C) 2007-2016 Free Software Foundation, Inc. +# open.m4 serial 15 +dnl Copyright (C) 2007-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -7,6 +7,7 @@ dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_OPEN], [ AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([gl_PREPROC_O_CLOEXEC]) case "$host_os" in mingw* | pw*) REPLACE_OPEN=1 @@ -15,48 +16,12 @@ AC_DEFUN([gl_FUNC_OPEN], dnl open("foo/") should not create a file when the file name has a dnl trailing slash. FreeBSD only has the problem on symlinks. AC_CHECK_FUNCS_ONCE([lstat]) - AC_CACHE_CHECK([whether open recognizes a trailing slash], - [gl_cv_func_open_slash], - [# Assume that if we have lstat, we can also check symlinks. - if test $ac_cv_func_lstat = yes; then - touch conftest.tmp - ln -s conftest.tmp conftest.lnk - fi - AC_RUN_IFELSE( - [AC_LANG_SOURCE([[ -#include <fcntl.h> -#if HAVE_UNISTD_H -# include <unistd.h> -#endif -int main () -{ - int result = 0; -#if HAVE_LSTAT - if (open ("conftest.lnk/", O_RDONLY) != -1) - result |= 1; -#endif - if (open ("conftest.sl/", O_CREAT, 0600) >= 0) - result |= 2; - return result; -}]])], - [gl_cv_func_open_slash=yes], - [gl_cv_func_open_slash=no], - [ -changequote(,)dnl - case "$host_os" in - freebsd* | aix* | hpux* | solaris2.[0-9] | solaris2.[0-9].*) - gl_cv_func_open_slash="guessing no" ;; - *) - gl_cv_func_open_slash="guessing yes" ;; - esac -changequote([,])dnl - ]) - rm -f conftest.sl conftest.tmp conftest.lnk - ]) + if test "$gl_cv_macro_O_CLOEXEC" != yes; then + REPLACE_OPEN=1 + fi + gl_OPEN_TRAILING_SLASH_BUG case "$gl_cv_func_open_slash" in *no) - AC_DEFINE([OPEN_TRAILING_SLASH_BUG], [1], - [Define to 1 if open() fails to recognize a trailing slash.]) REPLACE_OPEN=1 ;; esac diff --git a/gnulib/import/m4/openat.m4 b/gnulib/import/m4/openat.m4 index fdeb1de6a3d..005a2b43187 100644 --- a/gnulib/import/m4/openat.m4 +++ b/gnulib/import/m4/openat.m4 @@ -1,7 +1,7 @@ -# serial 45 +# serial 46 # See if we need to use our replacement for Solaris' openat et al functions. -dnl Copyright (C) 2004-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2004-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -14,10 +14,12 @@ AC_DEFUN([gl_FUNC_OPENAT], AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_CHECK_FUNCS_ONCE([openat]) AC_REQUIRE([gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK]) - case $ac_cv_func_openat+$gl_cv_func_lstat_dereferences_slashed_symlink in - yes+*yes) + AC_REQUIRE([gl_PREPROC_O_CLOEXEC]) + case $ac_cv_func_openat+$gl_cv_func_lstat_dereferences_slashed_symlink+$gl_cv_macro_O_CLOEXEC in + yes+*yes+yes) ;; yes+*) + # Solaris 10 lacks O_CLOEXEC. # Solaris 9 has *at functions, but uniformly mishandles trailing # slash in all of them. REPLACE_OPENAT=1 diff --git a/gnulib/import/m4/opendir.m4 b/gnulib/import/m4/opendir.m4 index ffaa6ae3baa..8f0d80423e9 100644 --- a/gnulib/import/m4/opendir.m4 +++ b/gnulib/import/m4/opendir.m4 @@ -1,5 +1,5 @@ -# opendir.m4 serial 4 -dnl Copyright (C) 2011-2016 Free Software Foundation, Inc. +# opendir.m4 serial 5 +dnl Copyright (C) 2011-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -7,6 +7,7 @@ dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_OPENDIR], [ AC_REQUIRE([gl_DIRENT_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CHECK_FUNCS([opendir]) if test $ac_cv_func_opendir = no; then diff --git a/gnulib/import/m4/pathmax.m4 b/gnulib/import/m4/pathmax.m4 index 6f8e59a1a24..0770aca3aac 100644 --- a/gnulib/import/m4/pathmax.m4 +++ b/gnulib/import/m4/pathmax.m4 @@ -1,5 +1,5 @@ -# pathmax.m4 serial 10 -dnl Copyright (C) 2002-2003, 2005-2006, 2009-2016 Free Software Foundation, +# pathmax.m4 serial 11 +dnl Copyright (C) 2002-2003, 2005-2006, 2009-2019 Free Software Foundation, dnl Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -29,7 +29,7 @@ AC_DEFUN([gl_PATHMAX_SNIPPET], [[ # undef PATH_MAX # define PATH_MAX 1024 #endif -#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ +#if defined _WIN32 && ! defined __CYGWIN__ # undef PATH_MAX # define PATH_MAX 260 #endif diff --git a/gnulib/import/m4/pthread_rwlock_rdlock.m4 b/gnulib/import/m4/pthread_rwlock_rdlock.m4 new file mode 100644 index 00000000000..87886a3b10f --- /dev/null +++ b/gnulib/import/m4/pthread_rwlock_rdlock.m4 @@ -0,0 +1,185 @@ +# pthread_rwlock_rdlock.m4 serial 4 +dnl Copyright (C) 2017-2019 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. +dnl Inspired by +dnl https://github.com/linux-test-project/ltp/blob/master/testcases/open_posix_testsuite/conformance/interfaces/pthread_rwlock_rdlock/2-2.c +dnl by Intel Corporation. + +dnl Test whether in a situation where +dnl - an rwlock is taken by a reader and has a writer waiting, +dnl - an additional reader requests the lock, +dnl - the waiting writer and the requesting reader threads have the same +dnl priority, +dnl the requesting reader thread gets blocked, so that at some point the +dnl waiting writer can acquire the lock. +dnl Without such a guarantee, when there a N readers and each of the readers +dnl spends more than 1/Nth of the time with the lock held, there is a high +dnl probability that the waiting writer will not get the lock in a given finite +dnl time, a phenomenon called "writer starvation". +dnl Without such a guarantee, applications have a hard time avoiding writer +dnl starvation. +dnl +dnl POSIX:2017 makes this requirement only for implementations that support TPS +dnl (Thread Priority Scheduling) and only for the scheduling policies SCHED_FIFO +dnl and SCHED_RR, see +dnl https://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_rwlock_rdlock.html +dnl but this test verifies the guarantee regardless of TPS and regardless of +dnl scheduling policy. +dnl Glibc does not provide this guarantee (and never will on Linux), see +dnl https://sourceware.org/bugzilla/show_bug.cgi?id=13701 +dnl https://bugzilla.redhat.com/show_bug.cgi?id=1410052 +AC_DEFUN([gl_PTHREAD_RWLOCK_RDLOCK_PREFER_WRITER], +[ + AC_REQUIRE([gl_THREADLIB_EARLY]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether pthread_rwlock_rdlock prefers a writer to a reader], + [gl_cv_pthread_rwlock_rdlock_prefer_writer], + [save_LIBS="$LIBS" + LIBS="$LIBS $LIBMULTITHREAD" + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <errno.h> +#include <pthread.h> +#include <stdlib.h> +#include <unistd.h> + +#define SUCCEED() exit (0) +#define FAILURE() exit (1) +#define UNEXPECTED(n) (exit (10 + (n))) + +/* The main thread creates the waiting writer and the requesting reader threads + in the default way; this guarantees that they have the same priority. + We can reuse the main thread as first reader thread. */ + +static pthread_rwlock_t lock; +static pthread_t reader1; +static pthread_t writer; +static pthread_t reader2; +static pthread_t timer; +/* Used to pass control from writer to reader2 and from reader2 to timer, + as in a relay race. + Passing control from one running thread to another running thread + is most likely faster than to create the second thread. */ +static pthread_mutex_t baton; + +static void * +timer_func (void *ignored) +{ + /* Step 13 (can be before or after step 12): + The timer thread takes the baton, then waits a moment to make sure + it can tell whether the second reader thread is blocked at step 12. */ + if (pthread_mutex_lock (&baton)) + UNEXPECTED (13); + usleep (100000); + /* By the time we get here, it's clear that the second reader thread is + blocked at step 12. This is the desired behaviour. */ + SUCCEED (); +} + +static void * +reader2_func (void *ignored) +{ + int err; + + /* Step 8 (can be before or after step 7): + The second reader thread takes the baton, then waits a moment to make sure + the writer thread has reached step 7. */ + if (pthread_mutex_lock (&baton)) + UNEXPECTED (8); + usleep (100000); + /* Step 9: The second reader thread requests the lock. */ + err = pthread_rwlock_tryrdlock (&lock); + if (err == 0) + FAILURE (); + else if (err != EBUSY) + UNEXPECTED (9); + /* Step 10: Launch a timer, to test whether the next call blocks. */ + if (pthread_create (&timer, NULL, timer_func, NULL)) + UNEXPECTED (10); + /* Step 11: Release the baton. */ + if (pthread_mutex_unlock (&baton)) + UNEXPECTED (11); + /* Step 12: The second reader thread requests the lock. */ + err = pthread_rwlock_rdlock (&lock); + if (err == 0) + FAILURE (); + else + UNEXPECTED (12); +} + +static void * +writer_func (void *ignored) +{ + /* Step 4: Take the baton, so that the second reader thread does not go ahead + too early. */ + if (pthread_mutex_lock (&baton)) + UNEXPECTED (4); + /* Step 5: Create the second reader thread. */ + if (pthread_create (&reader2, NULL, reader2_func, NULL)) + UNEXPECTED (5); + /* Step 6: Release the baton. */ + if (pthread_mutex_unlock (&baton)) + UNEXPECTED (6); + /* Step 7: The writer thread requests the lock. */ + if (pthread_rwlock_wrlock (&lock)) + UNEXPECTED (7); + return NULL; +} + +int +main () +{ + reader1 = pthread_self (); + + /* Step 1: The main thread initializes the lock and the baton. */ + if (pthread_rwlock_init (&lock, NULL)) + UNEXPECTED (1); + if (pthread_mutex_init (&baton, NULL)) + UNEXPECTED (1); + /* Step 2: The main thread acquires the lock as a reader. */ + if (pthread_rwlock_rdlock (&lock)) + UNEXPECTED (2); + /* Step 3: Create the writer thread. */ + if (pthread_create (&writer, NULL, writer_func, NULL)) + UNEXPECTED (3); + /* Job done. Go to sleep. */ + for (;;) + { + sleep (1); + } +} +]])], + [gl_cv_pthread_rwlock_rdlock_prefer_writer=yes], + [gl_cv_pthread_rwlock_rdlock_prefer_writer=no], + [case "$host_os" in + # Guess no on glibc systems. + *-gnu* | gnu*) gl_cv_pthread_rwlock_rdlock_prefer_writer="guessing no" ;; + # Guess no on musl systems. + *-musl*) gl_cv_pthread_rwlock_rdlock_prefer_writer="guessing no" ;; + # Guess no on bionic systems. + *-android*) gl_cv_pthread_rwlock_rdlock_prefer_writer="guessing no" ;; + # Guess yes on native Windows with the mingw-w64 winpthreads library. + # Guess no on native Windows with the gnulib windows-rwlock module. + mingw*) if test "$gl_use_threads" = yes || test "$gl_use_threads" = posix; then + gl_cv_pthread_rwlock_rdlock_prefer_writer="guessing yes" + else + gl_cv_pthread_rwlock_rdlock_prefer_writer="guessing no" + fi + ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_pthread_rwlock_rdlock_prefer_writer="$gl_cross_guess_normal" ;; + esac + ]) + LIBS="$save_LIBS" + ]) + case "$gl_cv_pthread_rwlock_rdlock_prefer_writer" in + *yes) + AC_DEFINE([HAVE_PTHREAD_RWLOCK_RDLOCK_PREFER_WRITER], [1], + [Define if the 'pthread_rwlock_rdlock' function prefers a writer to a reader.]) + ;; + esac +]) diff --git a/gnulib/import/m4/rawmemchr.m4 b/gnulib/import/m4/rawmemchr.m4 index d3ccb7eb389..03a8804965d 100644 --- a/gnulib/import/m4/rawmemchr.m4 +++ b/gnulib/import/m4/rawmemchr.m4 @@ -1,5 +1,5 @@ # rawmemchr.m4 serial 2 -dnl Copyright (C) 2003, 2007-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2003, 2007-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/readdir.m4 b/gnulib/import/m4/readdir.m4 index eda3acf73dc..d09cb9fe8d2 100644 --- a/gnulib/import/m4/readdir.m4 +++ b/gnulib/import/m4/readdir.m4 @@ -1,5 +1,5 @@ # readdir.m4 serial 1 -dnl Copyright (C) 2011-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2011-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/readlink.m4 b/gnulib/import/m4/readlink.m4 index ede0378b481..7aa6ce03379 100644 --- a/gnulib/import/m4/readlink.m4 +++ b/gnulib/import/m4/readlink.m4 @@ -1,5 +1,5 @@ -# readlink.m4 serial 12 -dnl Copyright (C) 2003, 2007, 2009-2016 Free Software Foundation, Inc. +# readlink.m4 serial 15 +dnl Copyright (C) 2003, 2007, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -34,10 +34,12 @@ AC_DEFUN([gl_FUNC_READLINK], return readlink ("conftest.lnk2/", buf, sizeof buf) != -1;]])], [gl_cv_func_readlink_works=yes], [gl_cv_func_readlink_works=no], [case "$host_os" in - # Guess yes on glibc systems. - *-gnu*) gl_cv_func_readlink_works="guessing yes" ;; - # If we don't know, assume the worst. - *) gl_cv_func_readlink_works="guessing no" ;; + # Guess yes on Linux systems. + linux-* | linux) gl_cv_func_readlink_works="guessing yes" ;; + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_readlink_works="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_readlink_works="$gl_cross_guess_normal" ;; esac ]) rm -f conftest.link conftest.lnk2]) diff --git a/gnulib/import/m4/realloc.m4 b/gnulib/import/m4/realloc.m4 index fc2282544dd..05e72432481 100644 --- a/gnulib/import/m4/realloc.m4 +++ b/gnulib/import/m4/realloc.m4 @@ -1,13 +1,11 @@ -# realloc.m4 serial 14 -dnl Copyright (C) 2007, 2009-2016 Free Software Foundation, Inc. +# realloc.m4 serial 18 +dnl Copyright (C) 2007, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. -m4_version_prereq([2.70], [] ,[ - # This is adapted with modifications from upstream Autoconf here: -# http://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=04be2b7a29d65d9a08e64e8e56e594c91749598c +# https://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=04be2b7a29d65d9a08e64e8e56e594c91749598c AC_DEFUN([_AC_FUNC_REALLOC_IF], [ AC_REQUIRE([AC_HEADER_STDC])dnl @@ -32,19 +30,24 @@ AC_DEFUN([_AC_FUNC_REALLOC_IF], [ac_cv_func_realloc_0_nonnull=no], [case "$host_os" in # Guess yes on platforms where we know the result. - *-gnu* | freebsd* | netbsd* | openbsd* \ + *-gnu* | gnu* | *-musl* | freebsd* | netbsd* | openbsd* \ | hpux* | solaris* | cygwin* | mingw*) - ac_cv_func_realloc_0_nonnull=yes ;; - # If we don't know, assume the worst. - *) ac_cv_func_realloc_0_nonnull=no ;; + ac_cv_func_realloc_0_nonnull="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) ac_cv_func_realloc_0_nonnull="$gl_cross_guess_normal" ;; esac ]) ]) - AS_IF([test $ac_cv_func_realloc_0_nonnull = yes], [$1], [$2]) + case "$ac_cv_func_realloc_0_nonnull" in + *yes) + $1 + ;; + *) + $2 + ;; + esac ])# AC_FUNC_REALLOC -]) - # gl_FUNC_REALLOC_GNU # ------------------- # Test whether 'realloc (0, 0)' is handled like in GNU libc, and replace diff --git a/gnulib/import/m4/rename.m4 b/gnulib/import/m4/rename.m4 index fbcc758d5a6..b453666c6ea 100644 --- a/gnulib/import/m4/rename.m4 +++ b/gnulib/import/m4/rename.m4 @@ -1,6 +1,6 @@ -# serial 26 +# serial 32 -# Copyright (C) 2001, 2003, 2005-2006, 2009-2016 Free Software Foundation, Inc. +# Copyright (C) 2001, 2003, 2005-2006, 2009-2019 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. @@ -19,7 +19,7 @@ AC_DEFUN([gl_FUNC_RENAME], AC_REQUIRE([gl_STDIO_H_DEFAULTS]) AC_CHECK_FUNCS_ONCE([lstat]) - dnl Solaris 10, AIX 7.1 mistakenly allow rename("file","name/"). + dnl Solaris 11.3, AIX 7.1 mistakenly allow rename("file","name/"). dnl NetBSD 1.6 mistakenly forbids rename("dir","name/"). dnl FreeBSD 7.2 mistakenly allows rename("file","link-to-file/"). dnl The Solaris bug can be worked around without stripping @@ -55,10 +55,14 @@ AC_DEFUN([gl_FUNC_RENAME], [gl_cv_func_rename_slash_dst_works=no], dnl When crosscompiling, assume rename is broken. [case "$host_os" in - # Guess yes on glibc systems. - *-gnu*) gl_cv_func_rename_slash_dst_works="guessing yes" ;; - # If we don't know, assume the worst. - *) gl_cv_func_rename_slash_dst_works="guessing no" ;; + # Guess yes on Linux systems. + linux-* | linux) gl_cv_func_rename_slash_dst_works="guessing yes" ;; + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_rename_slash_dst_works="guessing yes" ;; + # Guess no on native Windows. + mingw*) gl_cv_func_rename_slash_dst_works="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_rename_slash_dst_works="$gl_cross_guess_normal" ;; esac ]) rm -rf conftest.f conftest.f1 conftest.f2 conftest.d1 conftest.d2 conftest.lnk @@ -69,7 +73,7 @@ AC_DEFUN([gl_FUNC_RENAME], REPLACE_RENAME=1 AC_DEFINE([RENAME_TRAILING_SLASH_DEST_BUG], [1], [Define if rename does not correctly handle slashes on the destination - argument, such as on Solaris 10 or NetBSD 1.6.]) + argument, such as on Solaris 11 or NetBSD 1.6.]) ;; esac @@ -107,10 +111,14 @@ AC_DEFUN([gl_FUNC_RENAME], [gl_cv_func_rename_slash_src_works=no], dnl When crosscompiling, assume rename is broken. [case "$host_os" in - # Guess yes on glibc systems. - *-gnu*) gl_cv_func_rename_slash_src_works="guessing yes" ;; - # If we don't know, assume the worst. - *) gl_cv_func_rename_slash_src_works="guessing no" ;; + # Guess yes on Linux systems. + linux-* | linux) gl_cv_func_rename_slash_src_works="guessing yes" ;; + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_rename_slash_src_works="guessing yes" ;; + # Guess yes on native Windows. + mingw*) gl_cv_func_rename_slash_src_works="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_rename_slash_src_works="$gl_cross_guess_normal" ;; esac ]) rm -rf conftest.f conftest.f1 conftest.d1 conftest.d2 conftest.d3 conftest.lnk @@ -132,40 +140,58 @@ AC_DEFUN([gl_FUNC_RENAME], AC_CACHE_CHECK([whether rename manages hard links correctly], [gl_cv_func_rename_link_works], [if test $ac_cv_func_link = yes; then - rm -rf conftest.f conftest.f1 - if touch conftest.f && ln conftest.f conftest.f1 && - set x `ls -i conftest.f conftest.f1` && test "$2" = "$4"; then - AC_RUN_IFELSE( - [AC_LANG_PROGRAM([[ -# include <stdio.h> -# include <stdlib.h> -# include <unistd.h> - ]], - [[int result = 0; - if (rename ("conftest.f", "conftest.f1")) - result |= 1; - if (unlink ("conftest.f1")) - result |= 2; - if (rename ("conftest.f", "conftest.f")) - result |= 4; - if (rename ("conftest.f1", "conftest.f1") == 0) - result |= 8; - return result; - ]])], - [gl_cv_func_rename_link_works=yes], - [gl_cv_func_rename_link_works=no], - dnl When crosscompiling, assume rename is broken. - [case "$host_os" in - # Guess yes on glibc systems. - *-gnu*) gl_cv_func_rename_link_works="guessing yes" ;; - # If we don't know, assume the worst. - *) gl_cv_func_rename_link_works="guessing no" ;; - esac - ]) + if test $cross_compiling != yes; then + rm -rf conftest.f conftest.f1 conftest.f2 + if touch conftest.f conftest.f2 && ln conftest.f conftest.f1 && + set x `ls -i conftest.f conftest.f1` && test "$2" = "$4"; then + AC_RUN_IFELSE( + [AC_LANG_PROGRAM([[ +# include <errno.h> +# include <stdio.h> +# include <stdlib.h> +# include <unistd.h> + ]], + [[int result = 0; + if (rename ("conftest.f", "conftest.f1")) + result |= 1; + if (unlink ("conftest.f1")) + result |= 2; + + /* Allow either the POSIX-required behavior, where the + previous rename kept conftest.f, or the (better) NetBSD + behavior, where it removed conftest.f. */ + if (rename ("conftest.f", "conftest.f") != 0 + && errno != ENOENT) + result |= 4; + + if (rename ("conftest.f1", "conftest.f1") == 0) + result |= 8; + if (rename ("conftest.f2", "conftest.f2") != 0) + result |= 16; + return result; + ]])], + [gl_cv_func_rename_link_works=yes], + [gl_cv_func_rename_link_works=no], + [dnl We don't get here. + : + ]) + else + gl_cv_func_rename_link_works="guessing no" + fi + rm -rf conftest.f conftest.f1 conftest.f2 else - gl_cv_func_rename_link_works="guessing no" + dnl When crosscompiling, assume rename is broken. + case "$host_os" in + # Guess yes on Linux systems. + linux-* | linux) gl_cv_func_rename_link_works="guessing yes" ;; + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_rename_link_works="guessing yes" ;; + # Guess yes on native Windows. + mingw*) gl_cv_func_rename_link_works="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_rename_link_works="$gl_cross_guess_normal" ;; + esac fi - rm -rf conftest.f conftest.f1 else gl_cv_func_rename_link_works=yes fi @@ -205,10 +231,14 @@ AC_DEFUN([gl_FUNC_RENAME], [gl_cv_func_rename_dest_works=no], dnl When crosscompiling, assume rename is broken. [case "$host_os" in - # Guess yes on glibc systems. - *-gnu*) gl_cv_func_rename_dest_works="guessing yes" ;; - # If we don't know, assume the worst. - *) gl_cv_func_rename_dest_works="guessing no" ;; + # Guess yes on Linux systems. + linux-* | linux) gl_cv_func_rename_dest_works="guessing yes" ;; + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_rename_dest_works="guessing yes" ;; + # Guess no on native Windows. + mingw*) gl_cv_func_rename_dest_works="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_rename_dest_works="$gl_cross_guess_normal" ;; esac ]) rm -rf conftest.f conftest.d1 conftest.d2 diff --git a/gnulib/import/m4/rewinddir.m4 b/gnulib/import/m4/rewinddir.m4 index 0d3d6c619de..c14224c36f1 100644 --- a/gnulib/import/m4/rewinddir.m4 +++ b/gnulib/import/m4/rewinddir.m4 @@ -1,5 +1,5 @@ # rewinddir.m4 serial 1 -dnl Copyright (C) 2011-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2011-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/rmdir.m4 b/gnulib/import/m4/rmdir.m4 index ebb3b5db196..bc017787274 100644 --- a/gnulib/import/m4/rmdir.m4 +++ b/gnulib/import/m4/rmdir.m4 @@ -1,5 +1,5 @@ -# rmdir.m4 serial 13 -dnl Copyright (C) 2002, 2005, 2009-2016 Free Software Foundation, Inc. +# rmdir.m4 serial 17 +dnl Copyright (C) 2002, 2005, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -33,10 +33,14 @@ AC_DEFUN([gl_FUNC_RMDIR], ]])], [gl_cv_func_rmdir_works=yes], [gl_cv_func_rmdir_works=no], [case "$host_os" in - # Guess yes on glibc systems. - *-gnu*) gl_cv_func_rmdir_works="guessing yes" ;; - # If we don't know, assume the worst. - *) gl_cv_func_rmdir_works="guessing no" ;; + # Guess yes on Linux systems. + linux-* | linux) gl_cv_func_rmdir_works="guessing yes" ;; + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_rmdir_works="guessing yes" ;; + # Guess no on native Windows. + mingw*) gl_cv_func_rmdir_works="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_rmdir_works="$gl_cross_guess_normal" ;; esac ]) rm -rf conftest.dir conftest.file]) diff --git a/gnulib/import/m4/save-cwd.m4 b/gnulib/import/m4/save-cwd.m4 index d6e24100072..816fd7035f8 100644 --- a/gnulib/import/m4/save-cwd.m4 +++ b/gnulib/import/m4/save-cwd.m4 @@ -1,5 +1,5 @@ # serial 10 -dnl Copyright (C) 2002-2006, 2009-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2002-2006, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/secure_getenv.m4 b/gnulib/import/m4/secure_getenv.m4 deleted file mode 100644 index 3983173603a..00000000000 --- a/gnulib/import/m4/secure_getenv.m4 +++ /dev/null @@ -1,26 +0,0 @@ -# Look up an environment variable more securely. -dnl Copyright 2013-2016 Free Software Foundation, Inc. -dnl This file is free software; the Free Software Foundation -dnl gives unlimited permission to copy and/or distribute it, -dnl with or without modifications, as long as this notice is preserved. - -AC_DEFUN([gl_FUNC_SECURE_GETENV], -[ - dnl Persuade glibc <stdlib.h> to declare secure_getenv(). - AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) - - AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) - AC_CHECK_FUNCS_ONCE([secure_getenv]) - if test $ac_cv_func_secure_getenv = no; then - HAVE_SECURE_GETENV=0 - fi -]) - -# Prerequisites of lib/secure_getenv.c. -AC_DEFUN([gl_PREREQ_SECURE_GETENV], [ - AC_CHECK_FUNCS([__secure_getenv]) - if test $ac_cv_func___secure_getenv = no; then - AC_CHECK_FUNCS([issetugid]) - fi - AC_CHECK_FUNCS_ONCE([getuid geteuid getgid getegid]) -]) diff --git a/gnulib/import/m4/setenv.m4 b/gnulib/import/m4/setenv.m4 index 5d49aba60dd..67554596cdb 100644 --- a/gnulib/import/m4/setenv.m4 +++ b/gnulib/import/m4/setenv.m4 @@ -1,5 +1,5 @@ -# setenv.m4 serial 26 -dnl Copyright (C) 2001-2004, 2006-2016 Free Software Foundation, Inc. +# setenv.m4 serial 29 +dnl Copyright (C) 2001-2004, 2006-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -35,10 +35,12 @@ AC_DEFUN([gl_FUNC_SETENV], ]])], [gl_cv_func_setenv_works=yes], [gl_cv_func_setenv_works=no], [case "$host_os" in - # Guess yes on glibc systems. - *-gnu*) gl_cv_func_setenv_works="guessing yes" ;; - # If we don't know, assume the worst. - *) gl_cv_func_setenv_works="guessing no" ;; + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_setenv_works="guessing yes" ;; + # Guess yes on musl systems. + *-musl*) gl_cv_func_setenv_works="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_setenv_works="$gl_cross_guess_normal" ;; esac ])]) case "$gl_cv_func_setenv_works" in @@ -129,8 +131,8 @@ int unsetenv (const char *name); [case "$host_os" in # Guess yes on glibc systems. *-gnu*) gl_cv_func_unsetenv_works="guessing yes" ;; - # If we don't know, assume the worst. - *) gl_cv_func_unsetenv_works="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_unsetenv_works="$gl_cross_guess_normal" ;; esac ])]) case "$gl_cv_func_unsetenv_works" in diff --git a/gnulib/import/m4/signal_h.m4 b/gnulib/import/m4/signal_h.m4 index bcfd7b4be30..3acec64f881 100644 --- a/gnulib/import/m4/signal_h.m4 +++ b/gnulib/import/m4/signal_h.m4 @@ -1,5 +1,5 @@ # signal_h.m4 serial 18 -dnl Copyright (C) 2007-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2007-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/socklen.m4 b/gnulib/import/m4/socklen.m4 index 634c43a35c1..deb5135fef4 100644 --- a/gnulib/import/m4/socklen.m4 +++ b/gnulib/import/m4/socklen.m4 @@ -1,5 +1,5 @@ -# socklen.m4 serial 10 -dnl Copyright (C) 2005-2007, 2009-2016 Free Software Foundation, Inc. +# socklen.m4 serial 11 +dnl Copyright (C) 2005-2007, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -15,8 +15,8 @@ dnl So we have to test to find something that will work. AC_DEFUN([gl_TYPE_SOCKLEN_T], [AC_REQUIRE([gl_CHECK_SOCKET_HEADERS])dnl AC_CHECK_TYPE([socklen_t], , - [AC_MSG_CHECKING([for socklen_t equivalent]) - AC_CACHE_VAL([gl_cv_socklen_t_equiv], + [AC_CACHE_CHECK([for socklen_t equivalent], + [gl_cv_socklen_t_equiv], [# Systems have either "struct sockaddr *" or # "void *" as the second argument to getpeername gl_cv_socklen_t_equiv= @@ -34,11 +34,10 @@ AC_DEFUN([gl_TYPE_SOCKLEN_T], done test "$gl_cv_socklen_t_equiv" != "" && break done - ]) - if test "$gl_cv_socklen_t_equiv" = ""; then - AC_MSG_ERROR([Cannot find a type to use in place of socklen_t]) - fi - AC_MSG_RESULT([$gl_cv_socklen_t_equiv]) + if test "$gl_cv_socklen_t_equiv" = ""; then + AC_MSG_ERROR([Cannot find a type to use in place of socklen_t]) + fi + ]) AC_DEFINE_UNQUOTED([socklen_t], [$gl_cv_socklen_t_equiv], [type to use in place of socklen_t if not defined])], [gl_SOCKET_HEADERS])]) diff --git a/gnulib/import/m4/sockpfaf.m4 b/gnulib/import/m4/sockpfaf.m4 index dce8b8f01e3..7b3298235f9 100644 --- a/gnulib/import/m4/sockpfaf.m4 +++ b/gnulib/import/m4/sockpfaf.m4 @@ -1,5 +1,5 @@ -# sockpfaf.m4 serial 8 -dnl Copyright (C) 2004, 2006, 2009-2016 Free Software Foundation, Inc. +# sockpfaf.m4 serial 9 +dnl Copyright (C) 2004, 2006, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -16,8 +16,8 @@ AC_DEFUN([gl_SOCKET_FAMILIES], AC_REQUIRE([gl_HEADER_SYS_SOCKET]) AC_CHECK_HEADERS_ONCE([netinet/in.h]) - AC_MSG_CHECKING([for IPv4 sockets]) - AC_CACHE_VAL([gl_cv_socket_ipv4], + AC_CACHE_CHECK([for IPv4 sockets], + [gl_cv_socket_ipv4], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> #ifdef HAVE_SYS_SOCKET_H #include <sys/socket.h> @@ -31,13 +31,12 @@ AC_DEFUN([gl_SOCKET_FAMILIES], [[int x = AF_INET; struct in_addr y; struct sockaddr_in z; if (&x && &y && &z) return 0;]])], gl_cv_socket_ipv4=yes, gl_cv_socket_ipv4=no)]) - AC_MSG_RESULT([$gl_cv_socket_ipv4]) if test $gl_cv_socket_ipv4 = yes; then AC_DEFINE([HAVE_IPV4], [1], [Define to 1 if <sys/socket.h> defines AF_INET.]) fi - AC_MSG_CHECKING([for IPv6 sockets]) - AC_CACHE_VAL([gl_cv_socket_ipv6], + AC_CACHE_CHECK([for IPv6 sockets], + [gl_cv_socket_ipv6], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> #ifdef HAVE_SYS_SOCKET_H #include <sys/socket.h> @@ -54,7 +53,6 @@ AC_DEFUN([gl_SOCKET_FAMILIES], [[int x = AF_INET6; struct in6_addr y; struct sockaddr_in6 z; if (&x && &y && &z) return 0;]])], gl_cv_socket_ipv6=yes, gl_cv_socket_ipv6=no)]) - AC_MSG_RESULT([$gl_cv_socket_ipv6]) if test $gl_cv_socket_ipv6 = yes; then AC_DEFINE([HAVE_IPV6], [1], [Define to 1 if <sys/socket.h> defines AF_INET6.]) fi @@ -65,8 +63,8 @@ AC_DEFUN([gl_SOCKET_FAMILY_UNIX], AC_REQUIRE([gl_HEADER_SYS_SOCKET]) AC_CHECK_HEADERS_ONCE([sys/un.h]) - AC_MSG_CHECKING([for UNIX domain sockets]) - AC_CACHE_VAL([gl_cv_socket_unix], + AC_CACHE_CHECK([for UNIX domain sockets], + [gl_cv_socket_unix], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> #ifdef HAVE_SYS_SOCKET_H #include <sys/socket.h> @@ -80,7 +78,6 @@ AC_DEFUN([gl_SOCKET_FAMILY_UNIX], [[int x = AF_UNIX; struct sockaddr_un y; if (&x && &y) return 0;]])], gl_cv_socket_unix=yes, gl_cv_socket_unix=no)]) - AC_MSG_RESULT([$gl_cv_socket_unix]) if test $gl_cv_socket_unix = yes; then AC_DEFINE([HAVE_UNIXSOCKET], [1], [Define to 1 if <sys/socket.h> defines AF_UNIX.]) fi diff --git a/gnulib/import/m4/ssize_t.m4 b/gnulib/import/m4/ssize_t.m4 index 3e7b9e6e024..38bcee1c7d9 100644 --- a/gnulib/import/m4/ssize_t.m4 +++ b/gnulib/import/m4/ssize_t.m4 @@ -1,5 +1,5 @@ # ssize_t.m4 serial 5 (gettext-0.18.2) -dnl Copyright (C) 2001-2003, 2006, 2010-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2001-2003, 2006, 2010-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/stat-time.m4 b/gnulib/import/m4/stat-time.m4 new file mode 100644 index 00000000000..1685788e05f --- /dev/null +++ b/gnulib/import/m4/stat-time.m4 @@ -0,0 +1,83 @@ +# Checks for stat-related time functions. + +# Copyright (C) 1998-1999, 2001, 2003, 2005-2007, 2009-2019 Free Software +# Foundation, Inc. + +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +dnl From Paul Eggert. + +# st_atim.tv_nsec - Linux, Solaris, Cygwin +# st_atimespec.tv_nsec - FreeBSD, NetBSD, if ! defined _POSIX_SOURCE +# st_atimensec - FreeBSD, NetBSD, if defined _POSIX_SOURCE +# st_atim.st__tim.tv_nsec - UnixWare (at least 2.1.2 through 7.1) + +# st_birthtimespec - FreeBSD, NetBSD (hidden on OpenBSD 3.9, anyway) +# st_birthtim - Cygwin 1.7.0+ + +AC_DEFUN([gl_STAT_TIME], +[ + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + AC_CHECK_HEADERS_ONCE([sys/time.h]) + + AC_CHECK_MEMBERS([struct stat.st_atim.tv_nsec], + [AC_CACHE_CHECK([whether struct stat.st_atim is of type struct timespec], + [ac_cv_typeof_struct_stat_st_atim_is_struct_timespec], + [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( + [[ + #include <sys/types.h> + #include <sys/stat.h> + #if HAVE_SYS_TIME_H + # include <sys/time.h> + #endif + #include <time.h> + struct timespec ts; + struct stat st; + ]], + [[ + st.st_atim = ts; + ]])], + [ac_cv_typeof_struct_stat_st_atim_is_struct_timespec=yes], + [ac_cv_typeof_struct_stat_st_atim_is_struct_timespec=no])]) + if test $ac_cv_typeof_struct_stat_st_atim_is_struct_timespec = yes; then + AC_DEFINE([TYPEOF_STRUCT_STAT_ST_ATIM_IS_STRUCT_TIMESPEC], [1], + [Define to 1 if the type of the st_atim member of a struct stat is + struct timespec.]) + fi], + [AC_CHECK_MEMBERS([struct stat.st_atimespec.tv_nsec], [], + [AC_CHECK_MEMBERS([struct stat.st_atimensec], [], + [AC_CHECK_MEMBERS([struct stat.st_atim.st__tim.tv_nsec], [], [], + [#include <sys/types.h> + #include <sys/stat.h>])], + [#include <sys/types.h> + #include <sys/stat.h>])], + [#include <sys/types.h> + #include <sys/stat.h>])], + [#include <sys/types.h> + #include <sys/stat.h>]) +]) + +# Check for st_birthtime, a feature from UFS2 (FreeBSD, NetBSD, OpenBSD, etc.) +# and NTFS (Cygwin). +# There was a time when this field was named st_createtime (21 June +# 2002 to 16 July 2002) But that window is very small and applied only +# to development code, so systems still using that configuration are +# not supported. See revisions 1.10 and 1.11 of FreeBSD's +# src/sys/ufs/ufs/dinode.h. +# +AC_DEFUN([gl_STAT_BIRTHTIME], +[ + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + AC_CHECK_HEADERS_ONCE([sys/time.h]) + AC_CHECK_MEMBERS([struct stat.st_birthtimespec.tv_nsec], [], + [AC_CHECK_MEMBERS([struct stat.st_birthtimensec], [], + [AC_CHECK_MEMBERS([struct stat.st_birthtim.tv_nsec], [], [], + [#include <sys/types.h> + #include <sys/stat.h>])], + [#include <sys/types.h> + #include <sys/stat.h>])], + [#include <sys/types.h> + #include <sys/stat.h>]) +]) diff --git a/gnulib/import/m4/stat.m4 b/gnulib/import/m4/stat.m4 index a794975de9c..752661f8a96 100644 --- a/gnulib/import/m4/stat.m4 +++ b/gnulib/import/m4/stat.m4 @@ -1,6 +1,6 @@ -# serial 11 +# serial 16 -# Copyright (C) 2009-2016 Free Software Foundation, Inc. +# Copyright (C) 2009-2019 Free Software Foundation, Inc. # # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, @@ -8,64 +8,67 @@ AC_DEFUN([gl_FUNC_STAT], [ - AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) AC_CHECK_FUNCS_ONCE([lstat]) - dnl mingw is the only known platform where stat(".") and stat("./") differ - AC_CACHE_CHECK([whether stat handles trailing slashes on directories], - [gl_cv_func_stat_dir_slash], - [AC_RUN_IFELSE( - [AC_LANG_PROGRAM( - [[#include <sys/stat.h> -]], [[struct stat st; return stat (".", &st) != stat ("./", &st);]])], - [gl_cv_func_stat_dir_slash=yes], [gl_cv_func_stat_dir_slash=no], - [case $host_os in - mingw*) gl_cv_func_stat_dir_slash="guessing no";; - *) gl_cv_func_stat_dir_slash="guessing yes";; - esac])]) - dnl AIX 7.1, Solaris 9, mingw64 mistakenly succeed on stat("file/"). - dnl (For mingw, this is due to a broken stat() override in libmingwex.a.) - dnl FreeBSD 7.2 mistakenly succeeds on stat("link-to-file/"). - AC_CACHE_CHECK([whether stat handles trailing slashes on files], - [gl_cv_func_stat_file_slash], - [touch conftest.tmp - # Assume that if we have lstat, we can also check symlinks. - if test $ac_cv_func_lstat = yes; then - ln -s conftest.tmp conftest.lnk - fi - AC_RUN_IFELSE( - [AC_LANG_PROGRAM( - [[#include <sys/stat.h> + case "$host_os" in + mingw*) + dnl On this platform, the original stat() returns st_atime, st_mtime, + dnl st_ctime values that are affected by the time zone. + REPLACE_STAT=1 + ;; + *) + dnl AIX 7.1, Solaris 9, mingw64 mistakenly succeed on stat("file/"). + dnl (For mingw, this is due to a broken stat() override in libmingwex.a.) + dnl FreeBSD 7.2 mistakenly succeeds on stat("link-to-file/"). + AC_CACHE_CHECK([whether stat handles trailing slashes on files], + [gl_cv_func_stat_file_slash], + [touch conftest.tmp + # Assume that if we have lstat, we can also check symlinks. + if test $ac_cv_func_lstat = yes; then + ln -s conftest.tmp conftest.lnk + fi + AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <sys/stat.h> ]], [[int result = 0; - struct stat st; - if (!stat ("conftest.tmp/", &st)) - result |= 1; + struct stat st; + if (!stat ("conftest.tmp/", &st)) + result |= 1; #if HAVE_LSTAT - if (!stat ("conftest.lnk/", &st)) - result |= 2; + if (!stat ("conftest.lnk/", &st)) + result |= 2; #endif - return result; - ]])], - [gl_cv_func_stat_file_slash=yes], [gl_cv_func_stat_file_slash=no], - [case "$host_os" in - # Guess yes on glibc systems. - *-gnu*) gl_cv_func_stat_file_slash="guessing yes" ;; - # If we don't know, assume the worst. - *) gl_cv_func_stat_file_slash="guessing no" ;; - esac - ]) - rm -f conftest.tmp conftest.lnk]) - case $gl_cv_func_stat_dir_slash in - *no) REPLACE_STAT=1 - AC_DEFINE([REPLACE_FUNC_STAT_DIR], [1], [Define to 1 if stat needs - help when passed a directory name with a trailing slash]);; - esac - case $gl_cv_func_stat_file_slash in - *no) REPLACE_STAT=1 - AC_DEFINE([REPLACE_FUNC_STAT_FILE], [1], [Define to 1 if stat needs - help when passed a file name with a trailing slash]);; + return result; + ]])], + [gl_cv_func_stat_file_slash=yes], [gl_cv_func_stat_file_slash=no], + [case "$host_os" in + # Guess yes on Linux systems. + linux-* | linux) gl_cv_func_stat_file_slash="guessing yes" ;; + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_stat_file_slash="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_stat_file_slash="$gl_cross_guess_normal" ;; + esac + ]) + rm -f conftest.tmp conftest.lnk]) + case $gl_cv_func_stat_file_slash in + *no) + REPLACE_STAT=1 + AC_DEFINE([REPLACE_FUNC_STAT_FILE], [1], [Define to 1 if stat needs + help when passed a file name with a trailing slash]);; + esac + case $host_os in + dnl Solaris stat can return a negative tv_nsec. + solaris*) + REPLACE_FSTAT=1 ;; + esac + ;; esac ]) -# Prerequisites of lib/stat.c. -AC_DEFUN([gl_PREREQ_STAT], [:]) +# Prerequisites of lib/stat.c and lib/stat-w32.c. +AC_DEFUN([gl_PREREQ_STAT], [ + AC_REQUIRE([gl_HEADER_SYS_STAT_H]) + : +]) diff --git a/gnulib/import/m4/std-gnu11.m4 b/gnulib/import/m4/std-gnu11.m4 new file mode 100644 index 00000000000..23e7f75f1f4 --- /dev/null +++ b/gnulib/import/m4/std-gnu11.m4 @@ -0,0 +1,824 @@ +# Prefer GNU C11 and C++11 to earlier versions. -*- coding: utf-8 -*- + +# This implementation is taken from GNU Autoconf lib/autoconf/c.m4 +# commit 017d5ddd82854911f0119691d91ea8a1438824d6 +# dated Sun Apr 3 13:57:17 2016 -0700 +# This implementation will be obsolete once we can assume Autoconf 2.70 +# or later is installed everywhere a Gnulib program might be developed. + + +# Copyright (C) 2001-2019 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <https://www.gnu.org/licenses/>. + +# Written by David MacKenzie, with help from +# Akim Demaille, Paul Eggert, +# François Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor, +# Roland McGrath, Noah Friedman, david d zuhn, and many others. + + +# AC_PROG_CC([COMPILER ...]) +# -------------------------- +# COMPILER ... is a space separated list of C compilers to search for. +# This just gives the user an opportunity to specify an alternative +# search list for the C compiler. +AC_DEFUN_ONCE([AC_PROG_CC], +[AC_LANG_PUSH(C)dnl +AC_ARG_VAR([CC], [C compiler command])dnl +AC_ARG_VAR([CFLAGS], [C compiler flags])dnl +_AC_ARG_VAR_LDFLAGS()dnl +_AC_ARG_VAR_LIBS()dnl +_AC_ARG_VAR_CPPFLAGS()dnl +m4_ifval([$1], + [AC_CHECK_TOOLS(CC, [$1])], +[AC_CHECK_TOOL(CC, gcc) +if test -z "$CC"; then + dnl Here we want: + dnl AC_CHECK_TOOL(CC, cc) + dnl but without the check for a tool without the prefix. + dnl Until the check is removed from there, copy the code: + if test -n "$ac_tool_prefix"; then + AC_CHECK_PROG(CC, [${ac_tool_prefix}cc], [${ac_tool_prefix}cc]) + fi +fi +if test -z "$CC"; then + AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc) +fi +if test -z "$CC"; then + AC_CHECK_TOOLS(CC, cl.exe) +fi +if test -z "$CC"; then + AC_CHECK_TOOL(CC, clang) +fi +]) + +test -z "$CC" && AC_MSG_FAILURE([no acceptable C compiler found in \$PATH]) + +# Provide some information about the compiler. +_AS_ECHO_LOG([checking for _AC_LANG compiler version]) +set X $ac_compile +ac_compiler=$[2] +for ac_option in --version -v -V -qversion -version; do + m4_ifdef([_AC_DO_LIMIT],[_AC_DO_LIMIT],[_AC_DO])([$ac_compiler $ac_option >&AS_MESSAGE_LOG_FD]) +done + +m4_expand_once([_AC_COMPILER_EXEEXT])[]dnl +m4_expand_once([_AC_COMPILER_OBJEXT])[]dnl +_AC_LANG_COMPILER_GNU +if test $ac_compiler_gnu = yes; then + GCC=yes +else + GCC= +fi +_AC_PROG_CC_G +dnl +dnl Set ac_prog_cc_stdc to the supported C version. +dnl Also set the documented variable ac_cv_prog_cc_stdc; +dnl its name was chosen when it was cached, but it is no longer cached. +_AC_PROG_CC_C11([ac_prog_cc_stdc=c11 + ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c11], + [_AC_PROG_CC_C99([ac_prog_cc_stdc=c99 + ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c99], + [_AC_PROG_CC_C89([ac_prog_cc_stdc=c89 + ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89], + [ac_prog_cc_stdc=no + ac_cv_prog_cc_stdc=no])])]) +dnl +AC_LANG_POP(C)dnl +])# AC_PROG_CC + + + +# AC_PROG_CXX([LIST-OF-COMPILERS]) +# -------------------------------- +# LIST-OF-COMPILERS is a space separated list of C++ compilers to search +# for (if not specified, a default list is used). This just gives the +# user an opportunity to specify an alternative search list for the C++ +# compiler. +# aCC HP-UX C++ compiler much better than `CC', so test before. +# FCC Fujitsu C++ compiler +# KCC KAI C++ compiler +# RCC Rational C++ +# xlC_r AIX C Set++ (with support for reentrant code) +# xlC AIX C Set++ +AC_DEFUN([AC_PROG_CXX], +[AC_LANG_PUSH(C++)dnl +AC_ARG_VAR([CXX], [C++ compiler command])dnl +AC_ARG_VAR([CXXFLAGS], [C++ compiler flags])dnl +_AC_ARG_VAR_LDFLAGS()dnl +_AC_ARG_VAR_LIBS()dnl +_AC_ARG_VAR_CPPFLAGS()dnl +_AC_ARG_VAR_PRECIOUS([CCC])dnl +if test -z "$CXX"; then + if test -n "$CCC"; then + CXX=$CCC + else + AC_CHECK_TOOLS(CXX, + [m4_default([$1], + [g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC clang++])], + g++) + fi +fi +# Provide some information about the compiler. +_AS_ECHO_LOG([checking for _AC_LANG compiler version]) +set X $ac_compile +ac_compiler=$[2] +for ac_option in --version -v -V -qversion; do + m4_ifdef([_AC_DO_LIMIT],[_AC_DO_LIMIT],[_AC_DO])([$ac_compiler $ac_option >&AS_MESSAGE_LOG_FD]) +done + +m4_expand_once([_AC_COMPILER_EXEEXT])[]dnl +m4_expand_once([_AC_COMPILER_OBJEXT])[]dnl +_AC_LANG_COMPILER_GNU +if test $ac_compiler_gnu = yes; then + GXX=yes +else + GXX= +fi +_AC_PROG_CXX_G +_AC_PROG_CXX_CXX11([ac_prog_cxx_stdcxx=cxx11 + ac_cv_prog_cxx_stdcxx=$ac_cv_prog_cxx_cxx11 + ac_cv_prog_cxx_cxx98=$ac_cv_prog_cxx_cxx11], + [_AC_PROG_CXX_CXX98([ac_prog_cxx_stdcxx=cxx98 + ac_cv_prog_cxx_stdcxx=$ac_cv_prog_cxx_cxx98], + [ac_prog_cxx_stdcxx=no + ac_cv_prog_cxx_stdcxx=no])]) +AC_LANG_POP(C++)dnl +])# AC_PROG_CXX + + +# _AC_C_STD_TRY(STANDARD, TEST-PROLOGUE, TEST-BODY, OPTION-LIST, +# ACTION-IF-AVAILABLE, ACTION-IF-UNAVAILABLE) +# -------------------------------------------------------------- +# Check whether the C compiler accepts features of STANDARD (e.g `c89', `c99') +# by trying to compile a program of TEST-PROLOGUE and TEST-BODY. If this fails, +# try again with each compiler option in the space-separated OPTION-LIST; if one +# helps, append it to CC. If eventually successful, run ACTION-IF-AVAILABLE, +# else ACTION-IF-UNAVAILABLE. +AC_DEFUN([_AC_C_STD_TRY], +[AC_MSG_CHECKING([for $CC option to enable ]m4_translit($1, [c], [C])[ features]) +AC_CACHE_VAL(ac_cv_prog_cc_$1, +[ac_cv_prog_cc_$1=no +ac_save_CC=$CC +AC_LANG_CONFTEST([AC_LANG_PROGRAM([$2], [$3])]) +for ac_arg in '' $4 +do + CC="$ac_save_CC $ac_arg" + _AC_COMPILE_IFELSE([], [ac_cv_prog_cc_$1=$ac_arg]) + test "x$ac_cv_prog_cc_$1" != "xno" && break +done +rm -f conftest.$ac_ext +CC=$ac_save_CC +])# AC_CACHE_VAL +ac_prog_cc_stdc_options= +case "x$ac_cv_prog_cc_$1" in + x) + AC_MSG_RESULT([none needed]) ;; + xno) + AC_MSG_RESULT([unsupported]) ;; + *) + ac_prog_cc_stdc_options=" $ac_cv_prog_cc_$1" + CC=$CC$ac_prog_cc_stdc_options + AC_MSG_RESULT([$ac_cv_prog_cc_$1]) ;; +esac +AS_IF([test "x$ac_cv_prog_cc_$1" != xno], [$5], [$6]) +])# _AC_C_STD_TRY + +# _AC_C_C99_TEST_HEADER +# --------------------- +# A C header suitable for testing for C99. +AC_DEFUN([_AC_C_C99_TEST_HEADER], +[[#include <stdarg.h> +#include <stdbool.h> +#include <stddef.h> +#include <stdlib.h> +#include <wchar.h> +#include <stdio.h> + +// Check varargs macros. These examples are taken from C99 6.10.3.5. +#define debug(...) fprintf (stderr, __VA_ARGS__) +#define showlist(...) puts (#__VA_ARGS__) +#define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__)) +static void +test_varargs_macros (void) +{ + int x = 1234; + int y = 5678; + debug ("Flag"); + debug ("X = %d\n", x); + showlist (The first, second, and third items.); + report (x>y, "x is %d but y is %d", x, y); +} + +// Check long long types. +#define BIG64 18446744073709551615ull +#define BIG32 4294967295ul +#define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0) +#if !BIG_OK + your preprocessor is broken; +#endif +#if BIG_OK +#else + your preprocessor is broken; +#endif +static long long int bignum = -9223372036854775807LL; +static unsigned long long int ubignum = BIG64; + +struct incomplete_array +{ + int datasize; + double data[]; +}; + +struct named_init { + int number; + const wchar_t *name; + double average; +}; + +typedef const char *ccp; + +static inline int +test_restrict (ccp restrict text) +{ + // See if C++-style comments work. + // Iterate through items via the restricted pointer. + // Also check for declarations in for loops. + for (unsigned int i = 0; *(text+i) != '\0'; ++i) + continue; + return 0; +} + +// Check varargs and va_copy. +static bool +test_varargs (const char *format, ...) +{ + va_list args; + va_start (args, format); + va_list args_copy; + va_copy (args_copy, args); + + const char *str = ""; + int number = 0; + float fnumber = 0; + + while (*format) + { + switch (*format++) + { + case 's': // string + str = va_arg (args_copy, const char *); + break; + case 'd': // int + number = va_arg (args_copy, int); + break; + case 'f': // float + fnumber = va_arg (args_copy, double); + break; + default: + break; + } + } + va_end (args_copy); + va_end (args); + + return *str && number && fnumber; +}]])# _AC_C_C99_TEST_HEADER + +# _AC_C_C99_TEST_BODY +# ------------------- +# A C body suitable for testing for C99, assuming the corresponding header. +AC_DEFUN([_AC_C_C99_TEST_BODY], +[[ + // Check bool. + _Bool success = false; + + // Check restrict. + if (test_restrict ("String literal") == 0) + success = true; + char *restrict newvar = "Another string"; + + // Check varargs. + success &= test_varargs ("s, d' f .", "string", 65, 34.234); + test_varargs_macros (); + + // Check flexible array members. + struct incomplete_array *ia = + malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10)); + ia->datasize = 10; + for (int i = 0; i < ia->datasize; ++i) + ia->data[i] = i * 1.234; + + // Check named initializers. + struct named_init ni = { + .number = 34, + .name = L"Test wide string", + .average = 543.34343, + }; + + ni.number = 58; + + int dynamic_array[ni.number]; + dynamic_array[ni.number - 1] = 543; + + // work around unused variable warnings + return (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == 'x' + || dynamic_array[ni.number - 1] != 543); +]]) + +# _AC_PROG_CC_C99 ([ACTION-IF-AVAILABLE], [ACTION-IF-UNAVAILABLE]) +# ---------------------------------------------------------------- +# If the C compiler is not in ISO C99 mode by default, try to add an +# option to output variable CC to make it so. This macro tries +# various options that select ISO C99 on some system or another. It +# considers the compiler to be in ISO C99 mode if it handles _Bool, +# // comments, flexible array members, inline, long long int, mixed +# code and declarations, named initialization of structs, restrict, +# va_copy, varargs macros, variable declarations in for loops and +# variable length arrays. +AC_DEFUN([_AC_PROG_CC_C99], +[_AC_C_STD_TRY([c99], +[_AC_C_C99_TEST_HEADER], +[_AC_C_C99_TEST_BODY], +dnl Try +dnl GCC -std=gnu99 (unused restrictive modes: -std=c99 -std=iso9899:1999) +dnl IBM XL C -qlanglvl=extc1x (V12.1; does not pass C11 test) +dnl IBM XL C -qlanglvl=extc99 +dnl (pre-V12.1; unused restrictive mode: -qlanglvl=stdc99) +dnl HP cc -AC99 +dnl Intel ICC -std=c99, -c99 (deprecated) +dnl IRIX -c99 +dnl Solaris -D_STDC_C99= +dnl cc's -xc99 option uses linker magic to define the external +dnl symbol __xpg4 as if by "int __xpg4 = 1;", which enables C99 +dnl behavior for C library functions. This is not wanted here, +dnl because it means that a single module compiled with -xc99 +dnl alters C runtime behavior for the entire program, not for +dnl just the module. Instead, define the (private) symbol +dnl _STDC_C99, which suppresses a bogus failure in <stdbool.h>. +dnl The resulting compiler passes the test case here, and that's +dnl good enough. For more, please see the thread starting at: +dnl https://lists.gnu.org/r/autoconf/2010-12/msg00059.html +dnl Tru64 -c99 +dnl with extended modes being tried first. +[[-std=gnu99 -std=c99 -c99 -AC99 -D_STDC_C99= -qlanglvl=extc1x -qlanglvl=extc99]], [$1], [$2])[]dnl +])# _AC_PROG_CC_C99 + + +# _AC_PROG_CC_C11 ([ACTION-IF-AVAILABLE], [ACTION-IF-UNAVAILABLE]) +# ---------------------------------------------------------------- +# If the C compiler is not in ISO C11 mode by default, try to add an +# option to output variable CC to make it so. This macro tries +# various options that select ISO C11 on some system or another. It +# considers the compiler to be in ISO C11 mode if it handles _Alignas, +# _Alignof, _Noreturn, _Static_assert, UTF-8 string literals, +# duplicate typedefs, and anonymous structures and unions. +AC_DEFUN([_AC_PROG_CC_C11], +[_AC_C_STD_TRY([c11], +[_AC_C_C99_TEST_HEADER[ +// Check _Alignas. +char _Alignas (double) aligned_as_double; +char _Alignas (0) no_special_alignment; +extern char aligned_as_int; +char _Alignas (0) _Alignas (int) aligned_as_int; + +// Check _Alignof. +enum +{ + int_alignment = _Alignof (int), + int_array_alignment = _Alignof (int[100]), + char_alignment = _Alignof (char) +}; +_Static_assert (0 < -_Alignof (int), "_Alignof is signed"); + +// Check _Noreturn. +int _Noreturn does_not_return (void) { for (;;) continue; } + +// Check _Static_assert. +struct test_static_assert +{ + int x; + _Static_assert (sizeof (int) <= sizeof (long int), + "_Static_assert does not work in struct"); + long int y; +}; + +// Check UTF-8 literals. +#define u8 syntax error! +char const utf8_literal[] = u8"happens to be ASCII" "another string"; + +// Check duplicate typedefs. +typedef long *long_ptr; +typedef long int *long_ptr; +typedef long_ptr long_ptr; + +// Anonymous structures and unions -- taken from C11 6.7.2.1 Example 1. +struct anonymous +{ + union { + struct { int i; int j; }; + struct { int k; long int l; } w; + }; + int m; +} v1; +]], +[_AC_C_C99_TEST_BODY[ + v1.i = 2; + v1.w.k = 5; + _Static_assert ((offsetof (struct anonymous, i) + == offsetof (struct anonymous, w.k)), + "Anonymous union alignment botch"); +]], +dnl Try +dnl GCC -std=gnu11 (unused restrictive mode: -std=c11) +dnl with extended modes being tried first. +dnl +dnl Do not try -qlanglvl=extc1x, because IBM XL C V12.1 (the latest version as +dnl of September 2012) does not pass the C11 test. For now, try extc1x when +dnl compiling the C99 test instead, since it enables _Static_assert and +dnl _Noreturn, which is a win. If -qlanglvl=extc11 or -qlanglvl=extc1x passes +dnl the C11 test in some future version of IBM XL C, we'll add it here, +dnl preferably extc11. +[[-std=gnu11]], [$1], [$2])[]dnl +])# _AC_PROG_CC_C11 + + +# AC_PROG_CC_C89 +# -------------- +# Do not use AU_ALIAS here and in AC_PROG_CC_C99 and AC_PROG_CC_STDC, +# as that'd be incompatible with how Automake redefines AC_PROG_CC. See +# <https://lists.gnu.org/r/autoconf/2012-10/msg00048.html>. +AU_DEFUN([AC_PROG_CC_C89], + [AC_REQUIRE([AC_PROG_CC])], + [$0 is obsolete; use AC_PROG_CC] +) + +# AC_PROG_CC_C99 +# -------------- +AU_DEFUN([AC_PROG_CC_C99], + [AC_REQUIRE([AC_PROG_CC])], + [$0 is obsolete; use AC_PROG_CC] +) + +# AC_PROG_CC_STDC +# --------------- +AU_DEFUN([AC_PROG_CC_STDC], + [AC_REQUIRE([AC_PROG_CC])], + [$0 is obsolete; use AC_PROG_CC] +) + + +# AC_C_PROTOTYPES +# --------------- +# Check if the C compiler supports prototypes, included if it needs +# options. +AC_DEFUN([AC_C_PROTOTYPES], +[AC_REQUIRE([AC_PROG_CC])dnl +if test "$ac_prog_cc_stdc" != no; then + AC_DEFINE(PROTOTYPES, 1, + [Define to 1 if the C compiler supports function prototypes.]) + AC_DEFINE(__PROTOTYPES, 1, + [Define like PROTOTYPES; this can be used by system headers.]) +fi +])# AC_C_PROTOTYPES + + +# _AC_CXX_STD_TRY(STANDARD, TEST-PROLOGUE, TEST-BODY, OPTION-LIST, +# ACTION-IF-AVAILABLE, ACTION-IF-UNAVAILABLE) +# ---------------------------------------------------------------- +# Check whether the C++ compiler accepts features of STANDARD (e.g +# `cxx98', `cxx11') by trying to compile a program of TEST-PROLOGUE +# and TEST-BODY. If this fails, try again with each compiler option +# in the space-separated OPTION-LIST; if one helps, append it to CXX. +# If eventually successful, run ACTION-IF-AVAILABLE, else +# ACTION-IF-UNAVAILABLE. +AC_DEFUN([_AC_CXX_STD_TRY], +[AC_MSG_CHECKING([for $CXX option to enable ]m4_translit(m4_translit($1, [x], [+]), [a-z], [A-Z])[ features]) +AC_LANG_PUSH(C++)dnl +AC_CACHE_VAL(ac_cv_prog_cxx_$1, +[ac_cv_prog_cxx_$1=no +ac_save_CXX=$CXX +AC_LANG_CONFTEST([AC_LANG_PROGRAM([$2], [$3])]) +for ac_arg in '' $4 +do + CXX="$ac_save_CXX $ac_arg" + _AC_COMPILE_IFELSE([], [ac_cv_prog_cxx_$1=$ac_arg]) + test "x$ac_cv_prog_cxx_$1" != "xno" && break +done +rm -f conftest.$ac_ext +CXX=$ac_save_CXX +])# AC_CACHE_VAL +ac_prog_cxx_stdcxx_options= +case "x$ac_cv_prog_cxx_$1" in + x) + AC_MSG_RESULT([none needed]) ;; + xno) + AC_MSG_RESULT([unsupported]) ;; + *) + ac_prog_cxx_stdcxx_options=" $ac_cv_prog_cxx_$1" + CXX=$CXX$ac_prog_cxx_stdcxx_options + AC_MSG_RESULT([$ac_cv_prog_cxx_$1]) ;; +esac +AC_LANG_POP(C++)dnl +AS_IF([test "x$ac_cv_prog_cxx_$1" != xno], [$5], [$6]) +])# _AC_CXX_STD_TRY + +# _AC_CXX_CXX98_TEST_HEADER +# ------------------------- +# A C++ header suitable for testing for CXX98. +AC_DEFUN([_AC_CXX_CXX98_TEST_HEADER], +[[ +#include <algorithm> +#include <cstdlib> +#include <fstream> +#include <iomanip> +#include <iostream> +#include <list> +#include <map> +#include <set> +#include <sstream> +#include <stdexcept> +#include <string> +#include <utility> +#include <vector> + +namespace test { + typedef std::vector<std::string> string_vec; + typedef std::pair<int,bool> map_value; + typedef std::map<std::string,map_value> map_type; + typedef std::set<int> set_type; + + template<typename T> + class printer { + public: + printer(std::ostringstream& os): os(os) {} + void operator() (T elem) { os << elem << std::endl; } + private: + std::ostringstream& os; + }; +} +]])# _AC_CXX_CXX98_TEST_HEADER + +# _AC_CXX_CXX98_TEST_BODY +# ----------------------- +# A C++ body suitable for testing for CXX98, assuming the corresponding header. +AC_DEFUN([_AC_CXX_CXX98_TEST_BODY], +[[ + +try { + // Basic string. + std::string teststr("ASCII text"); + teststr += " string"; + + // Simple vector. + test::string_vec testvec; + testvec.push_back(teststr); + testvec.push_back("foo"); + testvec.push_back("bar"); + if (testvec.size() != 3) { + throw std::runtime_error("vector size is not 1"); + } + + // Dump vector into stringstream and obtain string. + std::ostringstream os; + for (test::string_vec::const_iterator i = testvec.begin(); + i != testvec.end(); ++i) { + if (i + 1 != testvec.end()) { + os << teststr << '\n'; + } + } + // Check algorithms work. + std::for_each(testvec.begin(), testvec.end(), test::printer<std::string>(os)); + std::string os_out = os.str(); + + // Test pair and map. + test::map_type testmap; + testmap.insert(std::make_pair(std::string("key"), + std::make_pair(53,false))); + + // Test set. + int values[] = {9, 7, 13, 15, 4, 18, 12, 10, 5, 3, 14, 19, 17, 8, 6, 20, 16, 2, 11, 1}; + test::set_type testset(values, values + sizeof(values)/sizeof(values[0])); + std::list<int> testlist(testset.begin(), testset.end()); + std::copy(testset.begin(), testset.end(), std::back_inserter(testlist)); +} catch (const std::exception& e) { + std::cerr << "Caught exception: " << e.what() << std::endl; + + // Test fstream + std::ofstream of("test.txt"); + of << "Test ASCII text\n" << std::flush; + of << "N= " << std::hex << std::setw(8) << std::left << 534 << std::endl; + of.close(); +} +std::exit(0); +]]) + +# _AC_CXX_CXX11_TEST_HEADER +# ------------------------- +# A C++ header suitable for testing for CXX11. +AC_DEFUN([_AC_CXX_CXX11_TEST_HEADER], +[[ +#include <deque> +#include <functional> +#include <memory> +#include <tuple> +#include <array> +#include <regex> +#include <iostream> + +namespace cxx11test +{ + typedef std::shared_ptr<std::string> sptr; + typedef std::weak_ptr<std::string> wptr; + + typedef std::tuple<std::string,int,double> tp; + typedef std::array<int, 20> int_array; + + constexpr int get_val() { return 20; } + + struct testinit + { + int i; + double d; + }; + + class delegate { + public: + delegate(int n) : n(n) {} + delegate(): delegate(2354) {} + + virtual int getval() { return this->n; }; + protected: + int n; + }; + + class overridden : public delegate { + public: + overridden(int n): delegate(n) {} + virtual int getval() override final { return this->n * 2; } + }; + + class nocopy { + public: + nocopy(int i): i(i) {} + nocopy() = default; + nocopy(const nocopy&) = delete; + nocopy & operator=(const nocopy&) = delete; + private: + int i; + }; +} +]])# _AC_CXX_CXX11_TEST_HEADER + +# _AC_CXX_CXX11_TEST_BODY +# ----------------------- +# A C++ body suitable for testing for CXX11, assuming the corresponding header. +AC_DEFUN([_AC_CXX_CXX11_TEST_BODY], +[[ +{ + // Test auto and decltype + std::deque<int> d; + d.push_front(43); + d.push_front(484); + d.push_front(3); + d.push_front(844); + int total = 0; + for (auto i = d.begin(); i != d.end(); ++i) { total += *i; } + + auto a1 = 6538; + auto a2 = 48573953.4; + auto a3 = "String literal"; + + decltype(a2) a4 = 34895.034; +} +{ + // Test constexpr + short sa[cxx11test::get_val()] = { 0 }; +} +{ + // Test initializer lists + cxx11test::testinit il = { 4323, 435234.23544 }; +} +{ + // Test range-based for and lambda + cxx11test::int_array array = {9, 7, 13, 15, 4, 18, 12, 10, 5, 3, 14, 19, 17, 8, 6, 20, 16, 2, 11, 1}; + for (int &x : array) { x += 23; } + std::for_each(array.begin(), array.end(), [](int v1){ std::cout << v1; }); +} +{ + using cxx11test::sptr; + using cxx11test::wptr; + + sptr sp(new std::string("ASCII string")); + wptr wp(sp); + sptr sp2(wp); +} +{ + cxx11test::tp tuple("test", 54, 45.53434); + double d = std::get<2>(tuple); + std::string s; + int i; + std::tie(s,i,d) = tuple; +} +{ + static std::regex filename_regex("^_?([a-z0-9_.]+-)+[a-z0-9]+$"); + std::string testmatch("Test if this string matches"); + bool match = std::regex_search(testmatch, filename_regex); +} +{ + cxx11test::int_array array = {9, 7, 13, 15, 4, 18, 12, 10, 5, 3, 14, 19, 17, 8, 6, 20, 16, 2, 11, 1}; + cxx11test::int_array::size_type size = array.size(); +} +{ + // Test constructor delegation + cxx11test::delegate d1; + cxx11test::delegate d2(); + cxx11test::delegate d3(45); +} +{ + // Test override and final + cxx11test::overridden o1(55464); +} +{ + // Test nullptr + char *c = nullptr; +} +{ + // Test template brackets + std::vector<std::pair<int,char*>> v1; +} +{ + // Unicode literals + char const *utf8 = u8"UTF-8 string \u2500"; + char16_t const *utf16 = u"UTF-8 string \u2500"; + char32_t const *utf32 = U"UTF-32 string \u2500"; +} +]]) + +# _AC_PROG_CXX_CXX98 ([ACTION-IF-AVAILABLE], [ACTION-IF-UNAVAILABLE]) +# ------------------------------------------------------------------- + +# If the C++ compiler is not in ISO C++98 mode by default, try to add +# an option to output variable CXX to make it so. This macro tries +# various options that select ISO C++98 on some system or another. It +# considers the compiler to be in ISO C++98 mode if it handles basic +# features of the std namespace including: string, containers (list, +# map, set, vector), streams (fstreams, iostreams, stringstreams, +# iomanip), pair, exceptions and algorithms. + + +AC_DEFUN([_AC_PROG_CXX_CXX98], +[_AC_CXX_STD_TRY([cxx98], +[_AC_CXX_CXX98_TEST_HEADER], +[_AC_CXX_CXX98_TEST_BODY], +dnl Try +dnl GCC -std=gnu++98 (unused restrictive mode: -std=c++98) +dnl IBM XL C -qlanglvl=extended +dnl HP aC++ -AA +dnl Intel ICC -std=gnu++98 +dnl Solaris N/A (default) +dnl Tru64 N/A (default, but -std gnu could be used) +dnl with extended modes being tried first. +[[-std=gnu++98 -std=c++98 -qlanglvl=extended -AA]], [$1], [$2])[]dnl +])# _AC_PROG_CXX_CXX98 + +# _AC_PROG_CXX_CXX11 ([ACTION-IF-AVAILABLE], [ACTION-IF-UNAVAILABLE]) +# ------------------------------------------------------------------- +# If the C++ compiler is not in ISO CXX11 mode by default, try to add +# an option to output variable CXX to make it so. This macro tries +# various options that select ISO C++11 on some system or another. It +# considers the compiler to be in ISO C++11 mode if it handles all the +# tests from the C++98 checks, plus the following: Language features +# (auto, constexpr, decltype, default/deleted constructors, delegate +# constructors, final, initializer lists, lambda functions, nullptr, +# override, range-based for loops, template brackets without spaces, +# unicode literals) and library features (array, memory (shared_ptr, +# weak_ptr), regex and tuple types). +AC_DEFUN([_AC_PROG_CXX_CXX11], +[_AC_CXX_STD_TRY([cxx11], +[_AC_CXX_CXX11_TEST_HEADER +_AC_CXX_CXX98_TEST_HEADER], +[_AC_CXX_CXX11_TEST_BODY +_AC_CXX_CXX98_TEST_BODY], +dnl Try +dnl GCC -std=gnu++11 (unused restrictive mode: -std=c++11) [and 0x variants] +dnl IBM XL C -qlanglvl=extended0x +dnl (pre-V12.1; unused restrictive mode: -qlanglvl=stdcxx11) +dnl HP aC++ -AA +dnl Intel ICC -std=c++11 -std=c++0x +dnl Solaris N/A (no support) +dnl Tru64 N/A (no support) +dnl with extended modes being tried first. +[[-std=gnu++11 -std=c++11 -std=gnu++0x -std=c++0x -qlanglvl=extended0x -AA]], [$1], [$2])[]dnl +])# _AC_PROG_CXX_CXX11 diff --git a/gnulib/import/m4/stdalign.m4 b/gnulib/import/m4/stdalign.m4 index 49980cd636e..601fd21f03b 100644 --- a/gnulib/import/m4/stdalign.m4 +++ b/gnulib/import/m4/stdalign.m4 @@ -1,6 +1,6 @@ # Check for stdalign.h that conforms to C11. -dnl Copyright 2011-2016 Free Software Foundation, Inc. +dnl Copyright 2011-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -18,7 +18,7 @@ AC_DEFUN([gl_STDALIGN_H], /* Test that alignof yields a result consistent with offsetof. This catches GCC bug 52023 - <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52023>. */ + <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52023>. */ #ifdef __cplusplus template <class t> struct alignof_helper { char a; t b; }; # define ao(type) offsetof (alignof_helper<type>, b) @@ -35,8 +35,8 @@ AC_DEFUN([gl_STDALIGN_H], || (defined __APPLE__ && defined __MACH__ \ ? 4 < __GNUC__ + (1 <= __GNUC_MINOR__) \ : __GNUC__) \ - || __HP_cc || __HP_aCC || __IBMC__ || __IBMCPP__ \ - || __ICC || 0x5110 <= __SUNPRO_C \ + || (__ia64 && (61200 <= __HP_cc || 61200 <= __HP_aCC)) \ + || __ICC || 0x590 <= __SUNPRO_C || 0x0600 <= __xlC__ \ || 1300 <= _MSC_VER) struct alignas_test { char c; char alignas (8) alignas_8; }; char test_alignas[offsetof (struct alignas_test, alignas_8) == 8 diff --git a/gnulib/import/m4/stdbool.m4 b/gnulib/import/m4/stdbool.m4 index 2a9b1db86f3..b470b05c544 100644 --- a/gnulib/import/m4/stdbool.m4 +++ b/gnulib/import/m4/stdbool.m4 @@ -1,22 +1,36 @@ # Check for stdbool.h that conforms to C99. -dnl Copyright (C) 2002-2006, 2009-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2002-2006, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. -#serial 7 +#serial 8 # Prepare for substituting <stdbool.h> if it is not supported. AC_DEFUN([AM_STDBOOL_H], [ AC_REQUIRE([AC_CHECK_HEADER_STDBOOL]) + AC_REQUIRE([AC_CANONICAL_HOST]) - # Define two additional variables used in the Makefile substitution. - + dnl On some platforms, <stdbool.h> does not exist or does not conform to C99. + dnl On Solaris 10 with CC=cc CXX=CC, <stdbool.h> exists but is not usable + dnl in C++ mode (and no <cstdbool> exists). In this case, we use our + dnl replacement, also in C mode (for binary compatibility between C and C++). if test "$ac_cv_header_stdbool_h" = yes; then - STDBOOL_H='' + case "$host_os" in + solaris*) + if test -z "$GCC"; then + STDBOOL_H='stdbool.h' + else + STDBOOL_H='' + fi + ;; + *) + STDBOOL_H='' + ;; + esac else STDBOOL_H='stdbool.h' fi @@ -87,8 +101,8 @@ AC_DEFUN([AC_CHECK_HEADER_STDBOOL], char o[sizeof n == m * sizeof n[0] ? 1 : -1]; char p[-1 - (Bool) 0 < 0 && -1 - (bool) 0 < 0 ? 1 : -1]; /* Catch a bug in an HP-UX C compiler. See - http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html - http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html + https://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html + https://lists.gnu.org/r/bug-coreutils/2005-11/msg00161.html */ Bool q = true; Bool *pq = &q; diff --git a/gnulib/import/m4/stddef_h.m4 b/gnulib/import/m4/stddef_h.m4 index c045c65f9f8..979e3cf7e79 100644 --- a/gnulib/import/m4/stddef_h.m4 +++ b/gnulib/import/m4/stddef_h.m4 @@ -1,6 +1,6 @@ dnl A placeholder for <stddef.h>, for platforms that have issues. -# stddef_h.m4 serial 5 -dnl Copyright (C) 2009-2016 Free Software Foundation, Inc. +# stddef_h.m4 serial 6 +dnl Copyright (C) 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -10,13 +10,33 @@ AC_DEFUN([gl_STDDEF_H], AC_REQUIRE([gl_STDDEF_H_DEFAULTS]) AC_REQUIRE([gt_TYPE_WCHAR_T]) STDDEF_H= - AC_CHECK_TYPE([max_align_t], [], [HAVE_MAX_ALIGN_T=0; STDDEF_H=stddef.h], - [[#include <stddef.h> - ]]) + + dnl Test whether the type max_align_t exists and whether its alignment + dnl "is as great as is supported by the implementation in all contexts". + AC_CACHE_CHECK([for good max_align_t], + [gl_cv_type_max_align_t], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <stddef.h> + unsigned int s = sizeof (max_align_t); + #if defined __GNUC__ || defined __IBM__ALIGNOF__ + int check1[2 * (__alignof__ (double) <= __alignof__ (max_align_t)) - 1]; + int check2[2 * (__alignof__ (long double) <= __alignof__ (max_align_t)) - 1]; + #endif + ]])], + [gl_cv_type_max_align_t=yes], + [gl_cv_type_max_align_t=no]) + ]) + if test $gl_cv_type_max_align_t = no; then + HAVE_MAX_ALIGN_T=0 + STDDEF_H=stddef.h + fi + if test $gt_cv_c_wchar_t = no; then HAVE_WCHAR_T=0 STDDEF_H=stddef.h fi + AC_CACHE_CHECK([whether NULL can be used in arbitrary expressions], [gl_cv_decl_null_works], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stddef.h> @@ -28,6 +48,7 @@ AC_DEFUN([gl_STDDEF_H], REPLACE_NULL=1 STDDEF_H=stddef.h fi + AC_SUBST([STDDEF_H]) AM_CONDITIONAL([GL_GENERATE_STDDEF_H], [test -n "$STDDEF_H"]) if test -n "$STDDEF_H"; then diff --git a/gnulib/import/m4/stdint.m4 b/gnulib/import/m4/stdint.m4 index 05b6ab7846b..11d8e8e52d4 100644 --- a/gnulib/import/m4/stdint.m4 +++ b/gnulib/import/m4/stdint.m4 @@ -1,5 +1,5 @@ -# stdint.m4 serial 48 -dnl Copyright (C) 2001-2016 Free Software Foundation, Inc. +# stdint.m4 serial 53 +dnl Copyright (C) 2001-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -7,11 +7,15 @@ dnl with or without modifications, as long as this notice is preserved. dnl From Paul Eggert and Bruno Haible. dnl Test whether <stdint.h> is supported or must be substituted. +AC_PREREQ([2.61]) + AC_DEFUN_ONCE([gl_STDINT_H], [ AC_PREREQ([2.59])dnl + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_REQUIRE([gl_LIMITS_H]) + AC_REQUIRE([gt_TYPE_WINT_T]) dnl Check for long long int and unsigned long long int. AC_REQUIRE([AC_TYPE_LONG_LONG_INT]) @@ -287,8 +291,12 @@ static const char *macro_values[] = ]])], [gl_cv_header_working_stdint_h=yes], [], - [dnl When cross-compiling, assume it works. - gl_cv_header_working_stdint_h=yes + [case "$host_os" in + # Guess yes on native Windows. + mingw*) gl_cv_header_working_stdint_h="guessing yes" ;; + # In general, assume it works. + *) gl_cv_header_working_stdint_h="guessing yes" ;; + esac ]) ]) ]) @@ -298,15 +306,16 @@ static const char *macro_values[] = HAVE_SYS_BITYPES_H=0 HAVE_SYS_INTTYPES_H=0 STDINT_H=stdint.h - if test "$gl_cv_header_working_stdint_h" = yes; then - HAVE_C99_STDINT_H=1 - dnl Now see whether the system <stdint.h> works without - dnl __STDC_CONSTANT_MACROS/__STDC_LIMIT_MACROS defined. - AC_CACHE_CHECK([whether stdint.h predates C++11], - [gl_cv_header_stdint_predates_cxx11_h], - [gl_cv_header_stdint_predates_cxx11_h=yes - AC_COMPILE_IFELSE([ - AC_LANG_PROGRAM([[ + case "$gl_cv_header_working_stdint_h" in + *yes) + HAVE_C99_STDINT_H=1 + dnl Now see whether the system <stdint.h> works without + dnl __STDC_CONSTANT_MACROS/__STDC_LIMIT_MACROS defined. + AC_CACHE_CHECK([whether stdint.h predates C++11], + [gl_cv_header_stdint_predates_cxx11_h], + [gl_cv_header_stdint_predates_cxx11_h=yes + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */ #include <stdint.h> ] @@ -314,49 +323,50 @@ gl_STDINT_INCLUDES [ intmax_t im = INTMAX_MAX; int32_t i32 = INT32_C (0x7fffffff); - ]])], - [gl_cv_header_stdint_predates_cxx11_h=no])]) + ]])], + [gl_cv_header_stdint_predates_cxx11_h=no])]) - if test "$gl_cv_header_stdint_predates_cxx11_h" = yes; then - AC_DEFINE([__STDC_CONSTANT_MACROS], [1], - [Define to 1 if the system <stdint.h> predates C++11.]) - AC_DEFINE([__STDC_LIMIT_MACROS], [1], - [Define to 1 if the system <stdint.h> predates C++11.]) - fi - AC_CACHE_CHECK([whether stdint.h has UINTMAX_WIDTH etc.], - [gl_cv_header_stdint_width], - [gl_cv_header_stdint_width=no - AC_COMPILE_IFELSE( - [AC_LANG_PROGRAM([[ - /* Work if build is not clean. */ - #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 - #ifndef __STDC_WANT_IEC_60559_BFP_EXT__ - #define __STDC_WANT_IEC_60559_BFP_EXT__ 1 - #endif - #include <stdint.h> - ]gl_STDINT_INCLUDES[ - int iw = UINTMAX_WIDTH; - ]])], - [gl_cv_header_stdint_width=yes])]) - if test "$gl_cv_header_stdint_width" = yes; then - STDINT_H= - fi - else - dnl Check for <sys/inttypes.h>, and for - dnl <sys/bitypes.h> (used in Linux libc4 >= 4.6.7 and libc5). - AC_CHECK_HEADERS([sys/inttypes.h sys/bitypes.h]) - if test $ac_cv_header_sys_inttypes_h = yes; then - HAVE_SYS_INTTYPES_H=1 - fi - if test $ac_cv_header_sys_bitypes_h = yes; then - HAVE_SYS_BITYPES_H=1 - fi - gl_STDINT_TYPE_PROPERTIES - fi + if test "$gl_cv_header_stdint_predates_cxx11_h" = yes; then + AC_DEFINE([__STDC_CONSTANT_MACROS], [1], + [Define to 1 if the system <stdint.h> predates C++11.]) + AC_DEFINE([__STDC_LIMIT_MACROS], [1], + [Define to 1 if the system <stdint.h> predates C++11.]) + fi + AC_CACHE_CHECK([whether stdint.h has UINTMAX_WIDTH etc.], + [gl_cv_header_stdint_width], + [gl_cv_header_stdint_width=no + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[ + /* Work if build is not clean. */ + #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 + #ifndef __STDC_WANT_IEC_60559_BFP_EXT__ + #define __STDC_WANT_IEC_60559_BFP_EXT__ 1 + #endif + #include <stdint.h> + ]gl_STDINT_INCLUDES[ + int iw = UINTMAX_WIDTH; + ]])], + [gl_cv_header_stdint_width=yes])]) + if test "$gl_cv_header_stdint_width" = yes; then + STDINT_H= + fi + ;; + *) + dnl Check for <sys/inttypes.h>, and for + dnl <sys/bitypes.h> (used in Linux libc4 >= 4.6.7 and libc5). + AC_CHECK_HEADERS([sys/inttypes.h sys/bitypes.h]) + if test $ac_cv_header_sys_inttypes_h = yes; then + HAVE_SYS_INTTYPES_H=1 + fi + if test $ac_cv_header_sys_bitypes_h = yes; then + HAVE_SYS_BITYPES_H=1 + fi + gl_STDINT_TYPE_PROPERTIES + ;; + esac - # The substitute stdint.h needs the substitute limit.h's _GL_INTEGER_WIDTH. - LIMITS_H=limits.h - AM_CONDITIONAL([GL_GENERATE_LIMITS_H], [test -n "$LIMITS_H"]) + dnl The substitute stdint.h needs the substitute limit.h's _GL_INTEGER_WIDTH. + gl_REPLACE_LIMITS_H AC_SUBST([HAVE_C99_STDINT_H]) AC_SUBST([HAVE_SYS_BITYPES_H]) @@ -528,13 +538,7 @@ AC_DEFUN([gl_STDINT_TYPE_PROPERTIES], dnl requirement that wint_t is "unchanged by default argument promotions". dnl In this case gnulib's <wchar.h> and <wctype.h> override wint_t. dnl Set the variable BITSIZEOF_WINT_T accordingly. - if test $BITSIZEOF_WINT_T -lt 32; then + if test $GNULIB_OVERRIDES_WINT_T = 1; then BITSIZEOF_WINT_T=32 fi ]) - -dnl Autoconf >= 2.61 has AC_COMPUTE_INT built-in. -dnl Remove this when we can assume autoconf >= 2.61. -m4_ifdef([AC_COMPUTE_INT], [], [ - AC_DEFUN([AC_COMPUTE_INT], [_AC_COMPUTE_INT([$2],[$1],[$3],[$4])]) -]) diff --git a/gnulib/import/m4/stdio_h.m4 b/gnulib/import/m4/stdio_h.m4 index eaa25a01d49..6c9c104044a 100644 --- a/gnulib/import/m4/stdio_h.m4 +++ b/gnulib/import/m4/stdio_h.m4 @@ -1,5 +1,5 @@ -# stdio_h.m4 serial 48 -dnl Copyright (C) 2007-2016 Free Software Foundation, Inc. +# stdio_h.m4 serial 49 +dnl Copyright (C) 2007-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -28,7 +28,7 @@ AC_DEFUN([gl_STDIO_H], /* For non-mingw systems, compilation will trivially succeed. For mingw, compilation will succeed for older mingw (system printf, "I64d") and fail for newer mingw (gnu printf, "lld"). */ - #if ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__) && \ + #if (defined _WIN32 && ! defined __CYGWIN__) && \ (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) extern char PRIdMAX_probe[sizeof PRIdMAX == sizeof "I64d" ? 1 : -1]; #endif diff --git a/gnulib/import/m4/stdlib_h.m4 b/gnulib/import/m4/stdlib_h.m4 index 3999068153d..6121602aea3 100644 --- a/gnulib/import/m4/stdlib_h.m4 +++ b/gnulib/import/m4/stdlib_h.m4 @@ -1,5 +1,5 @@ -# stdlib_h.m4 serial 43 -dnl Copyright (C) 2007-2016 Free Software Foundation, Inc. +# stdlib_h.m4 serial 48 +dnl Copyright (C) 2007-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -14,16 +14,19 @@ AC_DEFUN([gl_STDLIB_H], dnl guaranteed by C89. gl_WARN_ON_USE_PREPARE([[#include <stdlib.h> #if HAVE_SYS_LOADAVG_H +/* OpenIndiana has a bug: <sys/time.h> must be included before + <sys/loadavg.h>. */ +# include <sys/time.h> # include <sys/loadavg.h> #endif #if HAVE_RANDOM_H # include <random.h> #endif ]], [_Exit atoll canonicalize_file_name getloadavg getsubopt grantpt - initstate initstate_r mkdtemp mkostemp mkostemps mkstemp mkstemps - posix_openpt ptsname ptsname_r qsort_r random random_r realpath rpmatch - secure_getenv setenv setstate setstate_r srandom srandom_r - strtod strtoll strtoull unlockpt unsetenv]) + initstate initstate_r mbtowc mkdtemp mkostemp mkostemps mkstemp mkstemps + posix_openpt ptsname ptsname_r qsort_r random random_r reallocarray + realpath rpmatch secure_getenv setenv setstate setstate_r srandom + srandom_r strtod strtold strtoll strtoull unlockpt unsetenv]) ]) AC_DEFUN([gl_STDLIB_MODULE_INDICATOR], @@ -58,12 +61,14 @@ AC_DEFUN([gl_STDLIB_H_DEFAULTS], GNULIB_QSORT_R=0; AC_SUBST([GNULIB_QSORT_R]) GNULIB_RANDOM=0; AC_SUBST([GNULIB_RANDOM]) GNULIB_RANDOM_R=0; AC_SUBST([GNULIB_RANDOM_R]) + GNULIB_REALLOCARRAY=0; AC_SUBST([GNULIB_REALLOCARRAY]) GNULIB_REALLOC_POSIX=0; AC_SUBST([GNULIB_REALLOC_POSIX]) GNULIB_REALPATH=0; AC_SUBST([GNULIB_REALPATH]) GNULIB_RPMATCH=0; AC_SUBST([GNULIB_RPMATCH]) GNULIB_SECURE_GETENV=0; AC_SUBST([GNULIB_SECURE_GETENV]) GNULIB_SETENV=0; AC_SUBST([GNULIB_SETENV]) GNULIB_STRTOD=0; AC_SUBST([GNULIB_STRTOD]) + GNULIB_STRTOLD=0; AC_SUBST([GNULIB_STRTOLD]) GNULIB_STRTOLL=0; AC_SUBST([GNULIB_STRTOLL]) GNULIB_STRTOULL=0; AC_SUBST([GNULIB_STRTOULL]) GNULIB_SYSTEM_POSIX=0; AC_SUBST([GNULIB_SYSTEM_POSIX]) @@ -77,6 +82,9 @@ AC_DEFUN([gl_STDLIB_H_DEFAULTS], HAVE_DECL_GETLOADAVG=1; AC_SUBST([HAVE_DECL_GETLOADAVG]) HAVE_GETSUBOPT=1; AC_SUBST([HAVE_GETSUBOPT]) HAVE_GRANTPT=1; AC_SUBST([HAVE_GRANTPT]) + HAVE_INITSTATE=1; AC_SUBST([HAVE_INITSTATE]) + HAVE_DECL_INITSTATE=1; AC_SUBST([HAVE_DECL_INITSTATE]) + HAVE_MBTOWC=1; AC_SUBST([HAVE_MBTOWC]) HAVE_MKDTEMP=1; AC_SUBST([HAVE_MKDTEMP]) HAVE_MKOSTEMP=1; AC_SUBST([HAVE_MKOSTEMP]) HAVE_MKOSTEMPS=1; AC_SUBST([HAVE_MKOSTEMPS]) @@ -89,12 +97,16 @@ AC_DEFUN([gl_STDLIB_H_DEFAULTS], HAVE_RANDOM=1; AC_SUBST([HAVE_RANDOM]) HAVE_RANDOM_H=1; AC_SUBST([HAVE_RANDOM_H]) HAVE_RANDOM_R=1; AC_SUBST([HAVE_RANDOM_R]) + HAVE_REALLOCARRAY=1; AC_SUBST([HAVE_REALLOCARRAY]) HAVE_REALPATH=1; AC_SUBST([HAVE_REALPATH]) HAVE_RPMATCH=1; AC_SUBST([HAVE_RPMATCH]) HAVE_SECURE_GETENV=1; AC_SUBST([HAVE_SECURE_GETENV]) HAVE_SETENV=1; AC_SUBST([HAVE_SETENV]) HAVE_DECL_SETENV=1; AC_SUBST([HAVE_DECL_SETENV]) + HAVE_SETSTATE=1; AC_SUBST([HAVE_SETSTATE]) + HAVE_DECL_SETSTATE=1; AC_SUBST([HAVE_DECL_SETSTATE]) HAVE_STRTOD=1; AC_SUBST([HAVE_STRTOD]) + HAVE_STRTOLD=1; AC_SUBST([HAVE_STRTOLD]) HAVE_STRTOLL=1; AC_SUBST([HAVE_STRTOLL]) HAVE_STRTOULL=1; AC_SUBST([HAVE_STRTOULL]) HAVE_STRUCT_RANDOM_DATA=1; AC_SUBST([HAVE_STRUCT_RANDOM_DATA]) @@ -103,6 +115,7 @@ AC_DEFUN([gl_STDLIB_H_DEFAULTS], HAVE_DECL_UNSETENV=1; AC_SUBST([HAVE_DECL_UNSETENV]) REPLACE_CALLOC=0; AC_SUBST([REPLACE_CALLOC]) REPLACE_CANONICALIZE_FILE_NAME=0; AC_SUBST([REPLACE_CANONICALIZE_FILE_NAME]) + REPLACE_INITSTATE=0; AC_SUBST([REPLACE_INITSTATE]) REPLACE_MALLOC=0; AC_SUBST([REPLACE_MALLOC]) REPLACE_MBTOWC=0; AC_SUBST([REPLACE_MBTOWC]) REPLACE_MKSTEMP=0; AC_SUBST([REPLACE_MKSTEMP]) @@ -110,11 +123,14 @@ AC_DEFUN([gl_STDLIB_H_DEFAULTS], REPLACE_PTSNAME_R=0; AC_SUBST([REPLACE_PTSNAME_R]) REPLACE_PUTENV=0; AC_SUBST([REPLACE_PUTENV]) REPLACE_QSORT_R=0; AC_SUBST([REPLACE_QSORT_R]) + REPLACE_RANDOM=0; AC_SUBST([REPLACE_RANDOM]) REPLACE_RANDOM_R=0; AC_SUBST([REPLACE_RANDOM_R]) REPLACE_REALLOC=0; AC_SUBST([REPLACE_REALLOC]) REPLACE_REALPATH=0; AC_SUBST([REPLACE_REALPATH]) REPLACE_SETENV=0; AC_SUBST([REPLACE_SETENV]) + REPLACE_SETSTATE=0; AC_SUBST([REPLACE_SETSTATE]) REPLACE_STRTOD=0; AC_SUBST([REPLACE_STRTOD]) + REPLACE_STRTOLD=0; AC_SUBST([REPLACE_STRTOLD]) REPLACE_UNSETENV=0; AC_SUBST([REPLACE_UNSETENV]) REPLACE_WCTOMB=0; AC_SUBST([REPLACE_WCTOMB]) ]) diff --git a/gnulib/import/m4/strchrnul.m4 b/gnulib/import/m4/strchrnul.m4 index ac5c2117dc5..93cf112e10d 100644 --- a/gnulib/import/m4/strchrnul.m4 +++ b/gnulib/import/m4/strchrnul.m4 @@ -1,5 +1,5 @@ # strchrnul.m4 serial 9 -dnl Copyright (C) 2003, 2007, 2009-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2003, 2007, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/strdup.m4 b/gnulib/import/m4/strdup.m4 index ff7060abd38..82d74202dfe 100644 --- a/gnulib/import/m4/strdup.m4 +++ b/gnulib/import/m4/strdup.m4 @@ -1,6 +1,6 @@ # strdup.m4 serial 13 -dnl Copyright (C) 2002-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2002-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, diff --git a/gnulib/import/m4/strerror.m4 b/gnulib/import/m4/strerror.m4 index e286594b585..fbfb4e17539 100644 --- a/gnulib/import/m4/strerror.m4 +++ b/gnulib/import/m4/strerror.m4 @@ -1,5 +1,5 @@ -# strerror.m4 serial 17 -dnl Copyright (C) 2002, 2007-2016 Free Software Foundation, Inc. +# strerror.m4 serial 21 +dnl Copyright (C) 2002, 2007-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -24,10 +24,12 @@ AC_DEFUN([gl_FUNC_STRERROR], [gl_cv_func_working_strerror=yes], [gl_cv_func_working_strerror=no], [case "$host_os" in - # Guess yes on glibc systems. - *-gnu*) gl_cv_func_working_strerror="guessing yes" ;; - # If we don't know, assume the worst. - *) gl_cv_func_working_strerror="guessing no" ;; + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_working_strerror="guessing yes" ;; + # Guess yes on musl systems. + *-musl*) gl_cv_func_working_strerror="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_working_strerror="$gl_cross_guess_normal" ;; esac ]) ]) @@ -78,10 +80,14 @@ AC_DEFUN([gl_FUNC_STRERROR_0], [gl_cv_func_strerror_0_works=yes], [gl_cv_func_strerror_0_works=no], [case "$host_os" in - # Guess yes on glibc systems. - *-gnu*) gl_cv_func_strerror_0_works="guessing yes" ;; - # If we don't know, assume the worst. - *) gl_cv_func_strerror_0_works="guessing no" ;; + # Guess yes on glibc systems. + *-gnu* | gnu*) gl_cv_func_strerror_0_works="guessing yes" ;; + # Guess yes on musl systems. + *-musl*) gl_cv_func_strerror_0_works="guessing yes" ;; + # Guess yes on native Windows. + mingw*) gl_cv_func_strerror_0_works="guessing yes" ;; + # If we don't know, obey --enable-cross-guesses. + *) gl_cv_func_strerror_0_works="$gl_cross_guess_normal" ;; esac ]) ]) diff --git a/gnulib/import/m4/strerror_r.m4 b/gnulib/import/m4/strerror_r.m4 index aa0ea44bd6f..9907113e78c 100644 --- a/gnulib/import/m4/strerror_r.m4 +++ b/gnulib/import/m4/strerror_r.m4 @@ -1,5 +1,5 @@ -# strerror_r.m4 serial 18 -dnl Copyright (C) 2002, 2007-2016 Free Software Foundation, Inc. +# strerror_r.m4 serial 20 +dnl Copyright (C) 2002, 2007-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -14,10 +14,10 @@ AC_DEFUN([gl_FUNC_STRERROR_R], dnl Some systems don't declare strerror_r() if _THREAD_SAFE and _REENTRANT dnl are not defined. - AC_CHECK_DECL([strerror_r], - [HAVE_DECL_STRERROR_R=1], [HAVE_DECL_STRERROR_R=0]) - AC_DEFINE_UNQUOTED([HAVE_DECL_STRERROR_R_ORIG], [$HAVE_DECL_STRERROR_R], - [Define to 1 if you have the declaration of 'strerror_r' in the system include files, or to 0 otherwise.]) + AC_CHECK_DECLS_ONCE([strerror_r]) + if test $ac_cv_have_decl_strerror_r = no; then + HAVE_DECL_STRERROR_R=0 + fi if test $ac_cv_func_strerror_r = yes; then if test "$ERRNO_H:$REPLACE_STRERROR_0" = :0; then @@ -36,20 +36,6 @@ AC_DEFUN([gl_FUNC_STRERROR_R], REPLACE_STRERROR_R=1 fi fi - - # Overwrite the findings of AC_FUNC_STRERROR_R (for code that uses that). - AC_REQUIRE([AC_FUNC_STRERROR_R]) -]) - -# If this module is in use, we unconditionally want POSIX semantics; so -# replace autoconf's macro with a version that does not probe -AC_DEFUN([AC_FUNC_STRERROR_R], [ - AC_DEFINE([HAVE_DECL_STRERROR_R], [1], - [Define to 1, since you should have the declaration of strerror_r.]) - AC_DEFINE([HAVE_STRERROR_R], [1], - [Define to 1, since you should have the function strerror_r.]) - AC_DEFINE([STRERROR_R_CHAR_P], [0], - [Define to 0, since strerror_r should not return char *.]) ]) # Prerequisites of lib/strerror_r.c. @@ -68,7 +54,7 @@ AC_DEFUN([gl_FUNC_STRERROR_R_WORKS], AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_REQUIRE([gl_FUNC_STRERROR_0]) - AC_CHECK_FUNC([strerror_r]) + AC_CHECK_FUNCS_ONCE([strerror_r]) if test $ac_cv_func_strerror_r = yes; then if test "$ERRNO_H:$REPLACE_STRERROR_0" = :0; then dnl The POSIX prototype is: int strerror_r (int, char *, size_t); @@ -177,7 +163,7 @@ changequote([,])dnl [gl_cv_func_strerror_r_works=no], [dnl Guess no on all platforms that have __xpg_strerror_r, dnl at least until fixed glibc and cygwin are more common. - gl_cv_func_strerror_r_works="guessing no" + gl_cv_func_strerror_r_works="$gl_cross_guess_normal" ]) ]) fi diff --git a/gnulib/import/m4/string_h.m4 b/gnulib/import/m4/string_h.m4 index 0c5ec6f9a09..0c0e3a71af3 100644 --- a/gnulib/import/m4/string_h.m4 +++ b/gnulib/import/m4/string_h.m4 @@ -1,11 +1,11 @@ # Configure a GNU-like replacement for <string.h>. -# Copyright (C) 2007-2016 Free Software Foundation, Inc. +# Copyright (C) 2007-2019 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. -# serial 21 +# serial 22 # Written by Paul Eggert. @@ -43,6 +43,7 @@ AC_DEFUN([gl_STRING_MODULE_INDICATOR], AC_DEFUN([gl_HEADER_STRING_H_DEFAULTS], [ + GNULIB_EXPLICIT_BZERO=0; AC_SUBST([GNULIB_EXPLICIT_BZERO]) GNULIB_FFSL=0; AC_SUBST([GNULIB_FFSL]) GNULIB_FFSLL=0; AC_SUBST([GNULIB_FFSLL]) GNULIB_MEMCHR=0; AC_SUBST([GNULIB_MEMCHR]) @@ -82,6 +83,7 @@ AC_DEFUN([gl_HEADER_STRING_H_DEFAULTS], GNULIB_STRVERSCMP=0; AC_SUBST([GNULIB_STRVERSCMP]) HAVE_MBSLEN=0; AC_SUBST([HAVE_MBSLEN]) dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_EXPLICIT_BZERO=1; AC_SUBST([HAVE_EXPLICIT_BZERO]) HAVE_FFSL=1; AC_SUBST([HAVE_FFSL]) HAVE_FFSLL=1; AC_SUBST([HAVE_FFSLL]) HAVE_MEMCHR=1; AC_SUBST([HAVE_MEMCHR]) @@ -105,16 +107,16 @@ AC_DEFUN([gl_HEADER_STRING_H_DEFAULTS], REPLACE_MEMCHR=0; AC_SUBST([REPLACE_MEMCHR]) REPLACE_MEMMEM=0; AC_SUBST([REPLACE_MEMMEM]) REPLACE_STPNCPY=0; AC_SUBST([REPLACE_STPNCPY]) + REPLACE_STRCHRNUL=0; AC_SUBST([REPLACE_STRCHRNUL]) REPLACE_STRDUP=0; AC_SUBST([REPLACE_STRDUP]) + REPLACE_STRNCAT=0; AC_SUBST([REPLACE_STRNCAT]) + REPLACE_STRNDUP=0; AC_SUBST([REPLACE_STRNDUP]) + REPLACE_STRNLEN=0; AC_SUBST([REPLACE_STRNLEN]) REPLACE_STRSTR=0; AC_SUBST([REPLACE_STRSTR]) REPLACE_STRCASESTR=0; AC_SUBST([REPLACE_STRCASESTR]) - REPLACE_STRCHRNUL=0; AC_SUBST([REPLACE_STRCHRNUL]) + REPLACE_STRTOK_R=0; AC_SUBST([REPLACE_STRTOK_R]) REPLACE_STRERROR=0; AC_SUBST([REPLACE_STRERROR]) REPLACE_STRERROR_R=0; AC_SUBST([REPLACE_STRERROR_R]) - REPLACE_STRNCAT=0; AC_SUBST([REPLACE_STRNCAT]) - REPLACE_STRNDUP=0; AC_SUBST([REPLACE_STRNDUP]) - REPLACE_STRNLEN=0; AC_SUBST([REPLACE_STRNLEN]) REPLACE_STRSIGNAL=0; AC_SUBST([REPLACE_STRSIGNAL]) - REPLACE_STRTOK_R=0; AC_SUBST([REPLACE_STRTOK_R]) UNDEFINE_STRTOK_R=0; AC_SUBST([UNDEFINE_STRTOK_R]) ]) diff --git a/gnulib/import/m4/strstr.m4 b/gnulib/import/m4/strstr.m4 index bfe4c8590d9..23635143c11 100644 --- a/gnulib/import/m4/strstr.m4 +++ b/gnulib/import/m4/strstr.m4 @@ -1,5 +1,5 @@ -# strstr.m4 serial 17 -dnl Copyright (C) 2008-2016 Free Software Foundation, Inc. +# strstr.m4 serial 21 +dnl Copyright (C) 2008-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -9,28 +9,37 @@ AC_DEFUN([gl_FUNC_STRSTR_SIMPLE], [ AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) AC_REQUIRE([gl_FUNC_MEMCHR]) - if test "$gl_cv_func_memchr_works" != yes; then + if test $HAVE_MEMCHR = 0 || test $REPLACE_MEMCHR = 1; then REPLACE_STRSTR=1 else - dnl Detect http://sourceware.org/bugzilla/show_bug.cgi?id=12092. + dnl Detect https://sourceware.org/bugzilla/show_bug.cgi?id=12092 + dnl and https://sourceware.org/bugzilla/show_bug.cgi?id=23637. AC_CACHE_CHECK([whether strstr works], [gl_cv_func_strstr_works_always], - [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM([[ #include <string.h> /* for strstr */ +#ifdef __GNU_LIBRARY__ + #include <features.h> + #if __GLIBC__ == 2 && __GLIBC_MINOR__ == 28 + Unlucky user + #endif +#endif #define P "_EF_BF_BD" #define HAYSTACK "F_BD_CE_BD" P P P P "_C3_88_20" P P P "_C3_A7_20" P #define NEEDLE P P P P P -]], [[return !!strstr (HAYSTACK, NEEDLE); - ]])], - [gl_cv_func_strstr_works_always=yes], - [gl_cv_func_strstr_works_always=no], - [dnl glibc 2.12 and cygwin 1.7.7 have a known bug. uClibc is not - dnl affected, since it uses different source code for strstr than - dnl glibc. - dnl Assume that it works on all other platforms, even if it is not - dnl linear. - AC_EGREP_CPP([Lucky user], - [ +]], + [[return !!strstr (HAYSTACK, NEEDLE); + ]])], + [gl_cv_func_strstr_works_always=yes], + [gl_cv_func_strstr_works_always=no], + [dnl glibc 2.12 and cygwin 1.7.7 have a known bug. uClibc is not + dnl affected, since it uses different source code for strstr than + dnl glibc. + dnl Assume that it works on all other platforms, even if it is not + dnl linear. + AC_EGREP_CPP([Lucky user], + [ #ifdef __GNU_LIBRARY__ #include <features.h> #if ((__GLIBC__ == 2 && __GLIBC_MINOR__ > 12) || (__GLIBC__ > 2)) \ @@ -45,10 +54,10 @@ AC_DEFUN([gl_FUNC_STRSTR_SIMPLE], #else Lucky user #endif - ], - [gl_cv_func_strstr_works_always="guessing yes"], - [gl_cv_func_strstr_works_always="guessing no"]) - ]) + ], + [gl_cv_func_strstr_works_always="guessing yes"], + [gl_cv_func_strstr_works_always="$gl_cross_guess_normal"]) + ]) ]) case "$gl_cv_func_strstr_works_always" in *yes) ;; @@ -99,6 +108,9 @@ static void quit (int sig) { _exit (sig + 128); } if (!strstr (haystack, needle)) result |= 1; } + /* Free allocated memory, in case some sanitizer is watching. */ + free (haystack); + free (needle); return result; ]])], [gl_cv_func_strstr_linear=yes], [gl_cv_func_strstr_linear=no], @@ -123,7 +135,7 @@ static void quit (int sig) { _exit (sig + 128); } #endif ], [gl_cv_func_strstr_linear="guessing yes"], - [gl_cv_func_strstr_linear="guessing no"]) + [gl_cv_func_strstr_linear="$gl_cross_guess_normal"]) ]) ]) case "$gl_cv_func_strstr_linear" in diff --git a/gnulib/import/m4/strtok_r.m4 b/gnulib/import/m4/strtok_r.m4 index d010307bbc8..e80daae1a72 100644 --- a/gnulib/import/m4/strtok_r.m4 +++ b/gnulib/import/m4/strtok_r.m4 @@ -1,5 +1,5 @@ -# strtok_r.m4 serial 13 -dnl Copyright (C) 2002-2004, 2006-2007, 2009-2016 Free Software Foundation, +# strtok_r.m4 serial 15 +dnl Copyright (C) 2002-2004, 2006-2007, 2009-2019 Free Software Foundation, dnl Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -19,7 +19,7 @@ AC_DEFUN([gl_FUNC_STRTOK_R], dnl when the second argument to strtok_r is a constant string that has dnl exactly one byte and compiling with optimization. This bug is, for dnl example, present in the glibc 2.7-18 package in Debian "lenny". - dnl See <http://sources.redhat.com/bugzilla/show_bug.cgi?id=5614>. + dnl See <https://sourceware.org/bugzilla/show_bug.cgi?id=5614>. AC_CACHE_CHECK([whether strtok_r works], [gl_cv_func_strtok_r_works], [AC_RUN_IFELSE( [AC_LANG_PROGRAM([[ @@ -41,14 +41,13 @@ AC_DEFUN([gl_FUNC_STRTOK_R], ], [gl_cv_func_strtok_r_works=yes], [gl_cv_func_strtok_r_works=no], - [ -changequote(,)dnl - case "$host_os" in - # Guess no on glibc systems. - *-gnu*) gl_cv_func_strtok_r_works="guessing no";; - *) gl_cv_func_strtok_r_works="guessing yes";; + [case "$host_os" in + # Guess no on glibc systems. + *-gnu* | gnu*) gl_cv_func_strtok_r_works="guessing no" ;; + # Guess yes on native Windows. + mingw*) gl_cv_func_strtok_r_works="guessing yes" ;; + *) gl_cv_func_strtok_r_works="guessing yes" ;; esac -changequote([,])dnl ]) ]) case "$gl_cv_func_strtok_r_works" in diff --git a/gnulib/import/m4/sys_socket_h.m4 b/gnulib/import/m4/sys_socket_h.m4 index ae500c76053..d0a902061aa 100644 --- a/gnulib/import/m4/sys_socket_h.m4 +++ b/gnulib/import/m4/sys_socket_h.m4 @@ -1,5 +1,5 @@ -# sys_socket_h.m4 serial 23 -dnl Copyright (C) 2005-2016 Free Software Foundation, Inc. +# sys_socket_h.m4 serial 24 +dnl Copyright (C) 2005-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -104,17 +104,11 @@ AC_DEFUN([gl_PREREQ_SYS_H_SOCKET], gl_CHECK_NEXT_HEADERS([sys/socket.h]) if test $ac_cv_header_sys_socket_h = yes; then HAVE_SYS_SOCKET_H=1 - HAVE_WS2TCPIP_H=0 else HAVE_SYS_SOCKET_H=0 - if test $ac_cv_header_ws2tcpip_h = yes; then - HAVE_WS2TCPIP_H=1 - else - HAVE_WS2TCPIP_H=0 - fi fi AC_SUBST([HAVE_SYS_SOCKET_H]) - AC_SUBST([HAVE_WS2TCPIP_H]) + gl_PREREQ_SYS_H_WS2TCPIP ]) # Common prerequisites of the <sys/socket.h> replacement and of the @@ -142,6 +136,24 @@ AC_DEFUN([gl_PREREQ_SYS_H_WINSOCK2], AC_SUBST([HAVE_WINSOCK2_H]) ]) +# Common prerequisites of the <sys/socket.h> replacement and of the +# <arpa/inet.h> replacement. +# Sets and substitutes HAVE_WS2TCPIP_H. +AC_DEFUN([gl_PREREQ_SYS_H_WS2TCPIP], +[ + AC_REQUIRE([gl_CHECK_SOCKET_HEADERS]) + if test $ac_cv_header_sys_socket_h = yes; then + HAVE_WS2TCPIP_H=0 + else + if test $ac_cv_header_ws2tcpip_h = yes; then + HAVE_WS2TCPIP_H=1 + else + HAVE_WS2TCPIP_H=0 + fi + fi + AC_SUBST([HAVE_WS2TCPIP_H]) +]) + AC_DEFUN([gl_SYS_SOCKET_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. diff --git a/gnulib/import/m4/sys_stat_h.m4 b/gnulib/import/m4/sys_stat_h.m4 index 3d43b6f5ef2..361ac3fc141 100644 --- a/gnulib/import/m4/sys_stat_h.m4 +++ b/gnulib/import/m4/sys_stat_h.m4 @@ -1,5 +1,5 @@ -# sys_stat_h.m4 serial 28 -*- Autoconf -*- -dnl Copyright (C) 2006-2016 Free Software Foundation, Inc. +# sys_stat_h.m4 serial 31 -*- Autoconf -*- +dnl Copyright (C) 2006-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -19,18 +19,21 @@ AC_DEFUN([gl_HEADER_SYS_STAT_H], dnl Ensure the type mode_t gets defined. AC_REQUIRE([AC_TYPE_MODE_T]) - dnl Whether to override 'struct stat'. + dnl Whether to enable precise timestamps in 'struct stat'. + m4_ifdef([gl_WINDOWS_STAT_TIMESPEC], [ + AC_REQUIRE([gl_WINDOWS_STAT_TIMESPEC]) + ], [ + WINDOWS_STAT_TIMESPEC=0 + ]) + AC_SUBST([WINDOWS_STAT_TIMESPEC]) + + dnl Whether to ensure that struct stat.st_size is 64-bit wide. m4_ifdef([gl_LARGEFILE], [ AC_REQUIRE([gl_LARGEFILE]) ], [ WINDOWS_64_BIT_ST_SIZE=0 ]) AC_SUBST([WINDOWS_64_BIT_ST_SIZE]) - if test $WINDOWS_64_BIT_ST_SIZE = 1; then - AC_DEFINE([_GL_WINDOWS_64_BIT_ST_SIZE], [1], - [Define to 1 if Gnulib overrides 'struct stat' on Windows so that - struct stat.st_size becomes 64-bit.]) - fi dnl Define types that are supposed to be defined in <sys/types.h> or dnl <sys/stat.h>. @@ -72,6 +75,7 @@ AC_DEFUN([gl_SYS_STAT_H_DEFAULTS], GNULIB_MKNODAT=0; AC_SUBST([GNULIB_MKNODAT]) GNULIB_STAT=0; AC_SUBST([GNULIB_STAT]) GNULIB_UTIMENSAT=0; AC_SUBST([GNULIB_UTIMENSAT]) + GNULIB_OVERRIDES_STRUCT_STAT=0; AC_SUBST([GNULIB_OVERRIDES_STRUCT_STAT]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_FCHMODAT=1; AC_SUBST([HAVE_FCHMODAT]) HAVE_FSTATAT=1; AC_SUBST([HAVE_FSTATAT]) diff --git a/gnulib/import/m4/sys_time_h.m4 b/gnulib/import/m4/sys_time_h.m4 index 3061a9c185f..3d9233aa998 100644 --- a/gnulib/import/m4/sys_time_h.m4 +++ b/gnulib/import/m4/sys_time_h.m4 @@ -1,7 +1,7 @@ # Configure a replacement for <sys/time.h>. -# serial 8 +# serial 9 -# Copyright (C) 2007, 2009-2016 Free Software Foundation, Inc. +# Copyright (C) 2007, 2009-2019 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. @@ -105,7 +105,6 @@ AC_DEFUN([gl_HEADER_SYS_TIME_H_DEFAULTS], HAVE_GETTIMEOFDAY=1; AC_SUBST([HAVE_GETTIMEOFDAY]) HAVE_STRUCT_TIMEVAL=1; AC_SUBST([HAVE_STRUCT_TIMEVAL]) HAVE_SYS_TIME_H=1; AC_SUBST([HAVE_SYS_TIME_H]) - HAVE_TIMEZONE_T=0; AC_SUBST([HAVE_TIMEZONE_T]) REPLACE_GETTIMEOFDAY=0; AC_SUBST([REPLACE_GETTIMEOFDAY]) REPLACE_STRUCT_TIMEVAL=0; AC_SUBST([REPLACE_STRUCT_TIMEVAL]) ]) diff --git a/gnulib/import/m4/sys_types_h.m4 b/gnulib/import/m4/sys_types_h.m4 index 159b005b3d4..be0655900d5 100644 --- a/gnulib/import/m4/sys_types_h.m4 +++ b/gnulib/import/m4/sys_types_h.m4 @@ -1,11 +1,14 @@ -# sys_types_h.m4 serial 6 -dnl Copyright (C) 2011-2016 Free Software Foundation, Inc. +# sys_types_h.m4 serial 9 +dnl Copyright (C) 2011-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN_ONCE([gl_SYS_TYPES_H], [ + dnl Use sane struct stat types in OpenVMS 8.2 and later. + AC_DEFINE([_USE_STD_STAT], 1, [For standard stat data types on VMS.]) + AC_REQUIRE([gl_SYS_TYPES_H_DEFAULTS]) gl_NEXT_HEADERS([sys/types.h]) @@ -17,6 +20,14 @@ AC_DEFUN_ONCE([gl_SYS_TYPES_H], dnl Whether to override the 'off_t' type. AC_REQUIRE([gl_TYPE_OFF_T]) + + dnl Whether to override the 'dev_t' and 'ino_t' types. + m4_ifdef([gl_WINDOWS_STAT_INODES], [ + AC_REQUIRE([gl_WINDOWS_STAT_INODES]) + ], [ + WINDOWS_STAT_INODES=0 + ]) + AC_SUBST([WINDOWS_STAT_INODES]) ]) AC_DEFUN([gl_SYS_TYPES_H_DEFAULTS], @@ -24,12 +35,12 @@ AC_DEFUN([gl_SYS_TYPES_H_DEFAULTS], ]) # This works around a buggy version in autoconf <= 2.69. -# See <https://lists.gnu.org/archive/html/autoconf/2016-08/msg00014.html> +# See <https://lists.gnu.org/r/autoconf/2016-08/msg00014.html> m4_version_prereq([2.70], [], [ # This is taken from the following Autoconf patch: -# http://git.sv.gnu.org/cgit/autoconf.git/commit/?id=e17a30e98 +# https://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=e17a30e987d7ee695fb4294a82d987ec3dc9b974 m4_undefine([AC_HEADER_MAJOR]) AC_DEFUN([AC_HEADER_MAJOR], diff --git a/gnulib/import/m4/sys_uio_h.m4 b/gnulib/import/m4/sys_uio_h.m4 index d4d967fd576..8b8ba6d6782 100644 --- a/gnulib/import/m4/sys_uio_h.m4 +++ b/gnulib/import/m4/sys_uio_h.m4 @@ -1,5 +1,5 @@ # sys_uio_h.m4 serial 1 -dnl Copyright (C) 2011-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2011-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/tempname.m4 b/gnulib/import/m4/tempname.m4 index acf4c8d07c0..664a6322f38 100644 --- a/gnulib/import/m4/tempname.m4 +++ b/gnulib/import/m4/tempname.m4 @@ -1,6 +1,6 @@ #serial 5 -# Copyright (C) 2006-2007, 2009-2016 Free Software Foundation, Inc. +# Copyright (C) 2006-2007, 2009-2019 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/threadlib.m4 b/gnulib/import/m4/threadlib.m4 index b43534ea278..96c74c18b30 100644 --- a/gnulib/import/m4/threadlib.m4 +++ b/gnulib/import/m4/threadlib.m4 @@ -1,11 +1,26 @@ -# threadlib.m4 serial 11 (gettext-0.18.2) -dnl Copyright (C) 2005-2016 Free Software Foundation, Inc. +# threadlib.m4 serial 24 +dnl Copyright (C) 2005-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible. +AC_PREREQ([2.60]) + +dnl gl_PTHREADLIB +dnl ------------- +dnl Tests for the libraries needs for using the POSIX threads API. +dnl Sets the variable LIBPTHREAD to the linker options for use in a Makefile. +dnl Sets the variable LIBPMULTITHREAD, for programs that really need +dnl multithread functionality. The difference between LIBPTHREAD and +dnl LIBPMULTITHREAD is that on platforms supporting weak symbols, typically +dnl LIBPTHREAD is empty whereas LIBPMULTITHREAD is not. +dnl Adds to CPPFLAGS the flag -D_REENTRANT or -D_THREAD_SAFE if needed for +dnl multithread-safe programs. +dnl Defines the C macro HAVE_PTHREAD_API if (at least parts of) the POSIX +dnl threads API is available. + dnl gl_THREADLIB dnl ------------ dnl Tests for a multithreading library to be used. @@ -14,8 +29,13 @@ dnl (it must be placed before the invocation of gl_THREADLIB_EARLY!), then the dnl default is 'no', otherwise it is system dependent. In both cases, the user dnl can change the choice through the options --enable-threads=choice or dnl --disable-threads. -dnl Defines at most one of the macros USE_POSIX_THREADS, USE_SOLARIS_THREADS, -dnl USE_PTH_THREADS, USE_WINDOWS_THREADS +dnl Defines at most one of the macros USE_ISOC_THREADS, USE_POSIX_THREADS, +dnl USE_ISOC_AND_POSIX_THREADS, USE_WINDOWS_THREADS. +dnl The choice --enable-threads=isoc+posix is available only on platforms that +dnl have both the ISO C and the POSIX threads APIs. It has the effect of using +dnl the ISO C API for most things and the POSIX API only for creating and +dnl controlling threads (because there is no equivalent to pthread_atfork in +dnl the ISO C API). dnl Sets the variables LIBTHREAD and LTLIBTHREAD to the linker options for use dnl in a Makefile (LIBTHREAD for use without libtool, LTLIBTHREAD for use with dnl libtool). @@ -25,6 +45,35 @@ dnl between LIBTHREAD and LIBMULTITHREAD is that on platforms supporting weak dnl symbols, typically LIBTHREAD is empty whereas LIBMULTITHREAD is not. dnl Adds to CPPFLAGS the flag -D_REENTRANT or -D_THREAD_SAFE if needed for dnl multithread-safe programs. +dnl Since support for GNU pth was removed, $LTLIBTHREAD and $LIBTHREAD have the +dnl same value, and similarly $LTLIBMULTITHREAD and $LIBMULTITHREAD have the +dnl same value. Only system libraries are needed. + +AC_DEFUN([gl_ANYTHREADLIB_EARLY], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + if test -z "$gl_anythreadlib_early_done"; then + case "$host_os" in + osf*) + # On OSF/1, the compiler needs the flag -D_REENTRANT so that it + # groks <pthread.h>. cc also understands the flag -pthread, but + # we don't use it because 1. gcc-2.95 doesn't understand -pthread, + # 2. putting a flag into CPPFLAGS that has an effect on the linker + # causes the AC_LINK_IFELSE test below to succeed unexpectedly, + # leading to wrong values of LIBTHREAD and LTLIBTHREAD. + CPPFLAGS="$CPPFLAGS -D_REENTRANT" + ;; + esac + # Some systems optimize for single-threaded programs by default, and + # need special flags to disable these optimizations. For example, the + # definition of 'errno' in <errno.h>. + case "$host_os" in + aix* | freebsd*) CPPFLAGS="$CPPFLAGS -D_THREAD_SAFE" ;; + solaris*) CPPFLAGS="$CPPFLAGS -D_REENTRANT" ;; + esac + gl_anythreadlib_early_done=done + fi +]) AC_DEFUN([gl_THREADLIB_EARLY], [ @@ -43,17 +92,14 @@ AC_DEFUN([gl_THREADLIB_EARLY_BODY], AC_REQUIRE([AC_CANONICAL_HOST]) dnl _GNU_SOURCE is needed for pthread_rwlock_t on glibc systems. - dnl AC_USE_SYSTEM_EXTENSIONS was introduced in autoconf 2.60 and obsoletes - dnl AC_GNU_SOURCE. - m4_ifdef([AC_USE_SYSTEM_EXTENSIONS], - [AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])], - [AC_REQUIRE([AC_GNU_SOURCE])]) + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) dnl Check for multithreading. m4_ifdef([gl_THREADLIB_DEFAULT_NO], [m4_divert_text([DEFAULTS], [gl_use_threads_default=no])], [m4_divert_text([DEFAULTS], [gl_use_threads_default=])]) + m4_divert_text([DEFAULTS], [gl_use_winpthreads_default=]) AC_ARG_ENABLE([threads], -AC_HELP_STRING([--enable-threads={posix|solaris|pth|windows}], [specify multithreading API])m4_ifdef([gl_THREADLIB_DEFAULT_NO], [], [ +AC_HELP_STRING([--enable-threads={isoc|posix|isoc+posix|windows}], [specify multithreading API])m4_ifdef([gl_THREADLIB_DEFAULT_NO], [], [ AC_HELP_STRING([--disable-threads], [build without multithread safety])]), [gl_use_threads=$enableval], [if test -n "$gl_use_threads_default"; then @@ -64,41 +110,174 @@ changequote(,)dnl dnl Disable multithreading by default on OSF/1, because it interferes dnl with fork()/exec(): When msgexec is linked with -lpthread, its dnl child process gets an endless segmentation fault inside execvp(). + osf*) gl_use_threads=no ;; dnl Disable multithreading by default on Cygwin 1.5.x, because it has dnl bugs that lead to endless loops or crashes. See - dnl <http://cygwin.com/ml/cygwin/2009-08/msg00283.html>. - osf*) gl_use_threads=no ;; + dnl <https://cygwin.com/ml/cygwin/2009-08/msg00283.html>. cygwin*) case `uname -r` in 1.[0-5].*) gl_use_threads=no ;; *) gl_use_threads=yes ;; esac ;; + dnl Obey gl_AVOID_WINPTHREAD on mingw. + mingw*) + case "$gl_use_winpthreads_default" in + yes) gl_use_threads=posix ;; + no) gl_use_threads=windows ;; + *) gl_use_threads=yes ;; + esac + ;; *) gl_use_threads=yes ;; esac changequote([,])dnl fi ]) - if test "$gl_use_threads" = yes || test "$gl_use_threads" = posix; then - # For using <pthread.h>: - case "$host_os" in - osf*) - # On OSF/1, the compiler needs the flag -D_REENTRANT so that it - # groks <pthread.h>. cc also understands the flag -pthread, but - # we don't use it because 1. gcc-2.95 doesn't understand -pthread, - # 2. putting a flag into CPPFLAGS that has an effect on the linker - # causes the AC_LINK_IFELSE test below to succeed unexpectedly, - # leading to wrong values of LIBTHREAD and LTLIBTHREAD. - CPPFLAGS="$CPPFLAGS -D_REENTRANT" - ;; - esac - # Some systems optimize for single-threaded programs by default, and - # need special flags to disable these optimizations. For example, the - # definition of 'errno' in <errno.h>. - case "$host_os" in - aix* | freebsd*) CPPFLAGS="$CPPFLAGS -D_THREAD_SAFE" ;; - solaris*) CPPFLAGS="$CPPFLAGS -D_REENTRANT" ;; - esac + if test "$gl_use_threads" = yes \ + || test "$gl_use_threads" = isoc \ + || test "$gl_use_threads" = posix \ + || test "$gl_use_threads" = isoc+posix; then + # For using <threads.h> or <pthread.h>: + gl_ANYTHREADLIB_EARLY + fi +]) + +dnl Checks whether the compiler and linker support weak declarations of symbols. + +AC_DEFUN([gl_WEAK_SYMBOLS], +[ + AC_CACHE_CHECK([whether imported symbols can be declared weak], + [gl_cv_have_weak], + [gl_cv_have_weak=no + dnl First, test whether the compiler accepts it syntactically. + AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[extern void xyzzy (); +#pragma weak xyzzy]], + [[xyzzy();]])], + [gl_cv_have_weak=maybe]) + if test $gl_cv_have_weak = maybe; then + dnl Second, test whether it actually works. On Cygwin 1.7.2, with + dnl gcc 4.3, symbols declared weak always evaluate to the address 0. + AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <stdio.h> +#pragma weak fputs +int main () +{ + return (fputs == NULL); +}]])], + [gl_cv_have_weak=yes], + [gl_cv_have_weak=no], + [dnl When cross-compiling, assume that only ELF platforms support + dnl weak symbols. + AC_EGREP_CPP([Extensible Linking Format], + [#ifdef __ELF__ + Extensible Linking Format + #endif + ], + [gl_cv_have_weak="guessing yes"], + [gl_cv_have_weak="guessing no"]) + ]) + fi + dnl But when linking statically, weak symbols don't work. + case " $LDFLAGS " in + *" -static "*) gl_cv_have_weak=no ;; + esac + ]) + case "$gl_cv_have_weak" in + *yes) + AC_DEFINE([HAVE_WEAK_SYMBOLS], [1], + [Define to 1 if the compiler and linker support weak declarations of symbols.]) + ;; + esac +]) + +dnl The guts of gl_PTHREADLIB. Needs to be expanded only once. + +AC_DEFUN([gl_PTHREADLIB_BODY], +[ + AC_REQUIRE([gl_ANYTHREADLIB_EARLY]) + if test -z "$gl_threadlib_body_done"; then + gl_pthread_api=no + LIBPTHREAD= + LIBPMULTITHREAD= + # On OSF/1, the compiler needs the flag -pthread or -D_REENTRANT so that + # it groks <pthread.h>. It's added above, in gl_ANYTHREADLIB_EARLY. + AC_CHECK_HEADER([pthread.h], + [gl_have_pthread_h=yes], [gl_have_pthread_h=no]) + if test "$gl_have_pthread_h" = yes; then + # Other possible tests: + # -lpthreads (FSU threads, PCthreads) + # -lgthreads + # Test whether both pthread_mutex_lock and pthread_mutexattr_init exist + # in libc. IRIX 6.5 has the first one in both libc and libpthread, but + # the second one only in libpthread, and lock.c needs it. + # + # If -pthread works, prefer it to -lpthread, since Ubuntu 14.04 + # needs -pthread for some reason. See: + # https://lists.gnu.org/r/bug-gnulib/2014-09/msg00023.html + save_LIBS=$LIBS + for gl_pthread in '' '-pthread'; do + LIBS="$LIBS $gl_pthread" + AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[#include <pthread.h> + pthread_mutex_t m; + pthread_mutexattr_t ma; + ]], + [[pthread_mutex_lock (&m); + pthread_mutexattr_init (&ma);]])], + [gl_pthread_api=yes + LIBPTHREAD=$gl_pthread + LIBPMULTITHREAD=$gl_pthread]) + LIBS=$save_LIBS + test $gl_pthread_api = yes && break + done + + # Test for libpthread by looking for pthread_kill. (Not pthread_self, + # since it is defined as a macro on OSF/1.) + if test $gl_pthread_api = yes && test -z "$LIBPTHREAD"; then + # The program links fine without libpthread. But it may actually + # need to link with libpthread in order to create multiple threads. + AC_CHECK_LIB([pthread], [pthread_kill], + [LIBPMULTITHREAD=-lpthread + # On Solaris and HP-UX, most pthread functions exist also in libc. + # Therefore pthread_in_use() needs to actually try to create a + # thread: pthread_create from libc will fail, whereas + # pthread_create will actually create a thread. + # On Solaris 10 or newer, this test is no longer needed, because + # libc contains the fully functional pthread functions. + case "$host_os" in + solaris | solaris2.[1-9] | solaris2.[1-9].* | hpux*) + AC_DEFINE([PTHREAD_IN_USE_DETECTION_HARD], [1], + [Define if the pthread_in_use() detection is hard.]) + esac + ]) + elif test $gl_pthread_api != yes; then + # Some library is needed. Try libpthread and libc_r. + AC_CHECK_LIB([pthread], [pthread_kill], + [gl_pthread_api=yes + LIBPTHREAD=-lpthread + LIBPMULTITHREAD=-lpthread]) + if test $gl_pthread_api != yes; then + # For FreeBSD 4. + AC_CHECK_LIB([c_r], [pthread_kill], + [gl_pthread_api=yes + LIBPTHREAD=-lc_r + LIBPMULTITHREAD=-lc_r]) + fi + fi + fi + AC_MSG_CHECKING([whether POSIX threads API is available]) + AC_MSG_RESULT([$gl_pthread_api]) + AC_SUBST([LIBPTHREAD]) + AC_SUBST([LIBPMULTITHREAD]) + if test $gl_pthread_api = yes; then + AC_DEFINE([HAVE_PTHREAD_API], [1], + [Define if you have the <pthread.h> header and the POSIX threads API.]) + fi + gl_threadlib_body_done=done fi ]) @@ -114,108 +293,44 @@ AC_DEFUN([gl_THREADLIB_BODY], LTLIBMULTITHREAD= if test "$gl_use_threads" != no; then dnl Check whether the compiler and linker support weak declarations. - AC_CACHE_CHECK([whether imported symbols can be declared weak], - [gl_cv_have_weak], - [gl_cv_have_weak=no - dnl First, test whether the compiler accepts it syntactically. - AC_LINK_IFELSE( - [AC_LANG_PROGRAM( - [[extern void xyzzy (); -#pragma weak xyzzy]], - [[xyzzy();]])], - [gl_cv_have_weak=maybe]) - if test $gl_cv_have_weak = maybe; then - dnl Second, test whether it actually works. On Cygwin 1.7.2, with - dnl gcc 4.3, symbols declared weak always evaluate to the address 0. - AC_RUN_IFELSE( - [AC_LANG_SOURCE([[ -#include <stdio.h> -#pragma weak fputs -int main () -{ - return (fputs == NULL); -}]])], - [gl_cv_have_weak=yes], - [gl_cv_have_weak=no], - [dnl When cross-compiling, assume that only ELF platforms support - dnl weak symbols. - AC_EGREP_CPP([Extensible Linking Format], - [#ifdef __ELF__ - Extensible Linking Format - #endif - ], - [gl_cv_have_weak="guessing yes"], - [gl_cv_have_weak="guessing no"]) - ]) - fi - ]) - if test "$gl_use_threads" = yes || test "$gl_use_threads" = posix; then - # On OSF/1, the compiler needs the flag -pthread or -D_REENTRANT so that - # it groks <pthread.h>. It's added above, in gl_THREADLIB_EARLY_BODY. - AC_CHECK_HEADER([pthread.h], - [gl_have_pthread_h=yes], [gl_have_pthread_h=no]) - if test "$gl_have_pthread_h" = yes; then - # Other possible tests: - # -lpthreads (FSU threads, PCthreads) - # -lgthreads - gl_have_pthread= - # Test whether both pthread_mutex_lock and pthread_mutexattr_init exist - # in libc. IRIX 6.5 has the first one in both libc and libpthread, but - # the second one only in libpthread, and lock.c needs it. - # - # If -pthread works, prefer it to -lpthread, since Ubuntu 14.04 - # needs -pthread for some reason. See: - # http://lists.gnu.org/archive/html/bug-gnulib/2014-09/msg00023.html - save_LIBS=$LIBS - for gl_pthread in '' '-pthread'; do - LIBS="$LIBS $gl_pthread" - AC_LINK_IFELSE( - [AC_LANG_PROGRAM( - [[#include <pthread.h> - pthread_mutex_t m; - pthread_mutexattr_t ma; - ]], - [[pthread_mutex_lock (&m); - pthread_mutexattr_init (&ma);]])], - [gl_have_pthread=yes - LIBTHREAD=$gl_pthread LTLIBTHREAD=$gl_pthread - LIBMULTITHREAD=$gl_pthread LTLIBMULTITHREAD=$gl_pthread]) - LIBS=$save_LIBS - test -n "$gl_have_pthread" && break - done - - # Test for libpthread by looking for pthread_kill. (Not pthread_self, - # since it is defined as a macro on OSF/1.) - if test -n "$gl_have_pthread" && test -z "$LIBTHREAD"; then - # The program links fine without libpthread. But it may actually - # need to link with libpthread in order to create multiple threads. - AC_CHECK_LIB([pthread], [pthread_kill], - [LIBMULTITHREAD=-lpthread LTLIBMULTITHREAD=-lpthread - # On Solaris and HP-UX, most pthread functions exist also in libc. - # Therefore pthread_in_use() needs to actually try to create a - # thread: pthread_create from libc will fail, whereas - # pthread_create will actually create a thread. - case "$host_os" in - solaris* | hpux*) - AC_DEFINE([PTHREAD_IN_USE_DETECTION_HARD], [1], - [Define if the pthread_in_use() detection is hard.]) - esac - ]) - elif test -z "$gl_have_pthread"; then - # Some library is needed. Try libpthread and libc_r. - AC_CHECK_LIB([pthread], [pthread_kill], - [gl_have_pthread=yes - LIBTHREAD=-lpthread LTLIBTHREAD=-lpthread - LIBMULTITHREAD=-lpthread LTLIBMULTITHREAD=-lpthread]) - if test -z "$gl_have_pthread"; then - # For FreeBSD 4. - AC_CHECK_LIB([c_r], [pthread_kill], - [gl_have_pthread=yes - LIBTHREAD=-lc_r LTLIBTHREAD=-lc_r - LIBMULTITHREAD=-lc_r LTLIBMULTITHREAD=-lc_r]) - fi - fi - if test -n "$gl_have_pthread"; then + gl_WEAK_SYMBOLS + if case "$gl_cv_have_weak" in *yes) true;; *) false;; esac; then + dnl If we use weak symbols to implement pthread_in_use / pth_in_use / + dnl thread_in_use, we also need to test whether the ISO C 11 thrd_create + dnl facility is in use. + AC_CHECK_HEADERS_ONCE([threads.h]) + : + fi + if test "$gl_use_threads" = isoc || test "$gl_use_threads" = isoc+posix; then + AC_CHECK_HEADERS_ONCE([threads.h]) + if test $ac_cv_header_threads_h = yes; then + gl_have_isoc_threads= + # Test whether both mtx_lock and cnd_timedwait exist in libc. + AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[#include <threads.h> + #include <stddef.h> + mtx_t m; + cnd_t c; + ]], + [[mtx_lock (&m); + cnd_timedwait (&c, &m, NULL);]])], + [gl_have_isoc_threads=yes]) + fi + fi + if test "$gl_use_threads" = yes \ + || test "$gl_use_threads" = posix \ + || test "$gl_use_threads" = isoc+posix; then + gl_PTHREADLIB_BODY + LIBTHREAD=$LIBPTHREAD LTLIBTHREAD=$LIBPTHREAD + LIBMULTITHREAD=$LIBPMULTITHREAD LTLIBMULTITHREAD=$LIBPMULTITHREAD + if test $gl_pthread_api = yes; then + if test "$gl_use_threads" = isoc+posix && test "$gl_have_isoc_threads" = yes; then + gl_threads_api='isoc+posix' + AC_DEFINE([USE_ISOC_AND_POSIX_THREADS], [1], + [Define if the combination of the ISO C and POSIX multithreading APIs can be used.]) + LIBTHREAD= LTLIBTHREAD= + else gl_threads_api=posix AC_DEFINE([USE_POSIX_THREADS], [1], [Define if the POSIX multithreading library can be used.]) @@ -223,75 +338,20 @@ int main () if case "$gl_cv_have_weak" in *yes) true;; *) false;; esac; then AC_DEFINE([USE_POSIX_THREADS_WEAK], [1], [Define if references to the POSIX multithreading library should be made weak.]) - LIBTHREAD= - LTLIBTHREAD= + LIBTHREAD= LTLIBTHREAD= fi fi fi fi fi - if test -z "$gl_have_pthread"; then - if test "$gl_use_threads" = yes || test "$gl_use_threads" = solaris; then - gl_have_solaristhread= - gl_save_LIBS="$LIBS" - LIBS="$LIBS -lthread" - AC_LINK_IFELSE( - [AC_LANG_PROGRAM( - [[ -#include <thread.h> -#include <synch.h> - ]], - [[thr_self();]])], - [gl_have_solaristhread=yes]) - LIBS="$gl_save_LIBS" - if test -n "$gl_have_solaristhread"; then - gl_threads_api=solaris - LIBTHREAD=-lthread - LTLIBTHREAD=-lthread - LIBMULTITHREAD="$LIBTHREAD" - LTLIBMULTITHREAD="$LTLIBTHREAD" - AC_DEFINE([USE_SOLARIS_THREADS], [1], - [Define if the old Solaris multithreading library can be used.]) - if case "$gl_cv_have_weak" in *yes) true;; *) false;; esac; then - AC_DEFINE([USE_SOLARIS_THREADS_WEAK], [1], - [Define if references to the old Solaris multithreading library should be made weak.]) - LIBTHREAD= - LTLIBTHREAD= - fi - fi + if test $gl_threads_api = none; then + if test "$gl_use_threads" = isoc && test "$gl_have_isoc_threads" = yes; then + gl_threads_api=isoc + AC_DEFINE([USE_ISOC_THREADS], [1], + [Define if the ISO C multithreading library can be used.]) fi fi - if test "$gl_use_threads" = pth; then - gl_save_CPPFLAGS="$CPPFLAGS" - AC_LIB_LINKFLAGS([pth]) - gl_have_pth= - gl_save_LIBS="$LIBS" - LIBS="$LIBS $LIBPTH" - AC_LINK_IFELSE( - [AC_LANG_PROGRAM([[#include <pth.h>]], [[pth_self();]])], - [gl_have_pth=yes]) - LIBS="$gl_save_LIBS" - if test -n "$gl_have_pth"; then - gl_threads_api=pth - LIBTHREAD="$LIBPTH" - LTLIBTHREAD="$LTLIBPTH" - LIBMULTITHREAD="$LIBTHREAD" - LTLIBMULTITHREAD="$LTLIBTHREAD" - AC_DEFINE([USE_PTH_THREADS], [1], - [Define if the GNU Pth multithreading library can be used.]) - if test -n "$LIBMULTITHREAD" || test -n "$LTLIBMULTITHREAD"; then - if case "$gl_cv_have_weak" in *yes) true;; *) false;; esac; then - AC_DEFINE([USE_PTH_THREADS_WEAK], [1], - [Define if references to the GNU Pth multithreading library should be made weak.]) - LIBTHREAD= - LTLIBTHREAD= - fi - fi - else - CPPFLAGS="$gl_save_CPPFLAGS" - fi - fi - if test -z "$gl_have_pthread"; then + if test $gl_threads_api = none; then case "$gl_use_threads" in yes | windows | win32) # The 'win32' is for backward compatibility. if { case "$host_os" in @@ -315,6 +375,12 @@ int main () AC_SUBST([LTLIBMULTITHREAD]) ]) +AC_DEFUN([gl_PTHREADLIB], +[ + AC_REQUIRE([gl_ANYTHREADLIB_EARLY]) + gl_PTHREADLIB_BODY +]) + AC_DEFUN([gl_THREADLIB], [ AC_REQUIRE([gl_THREADLIB_EARLY]) @@ -333,6 +399,18 @@ AC_DEFUN([gl_DISABLE_THREADS], [ ]) +dnl gl_AVOID_WINPTHREAD +dnl ------------------- +dnl Sets the gl_THREADLIB default so that on mingw, a dependency to the +dnl libwinpthread DLL (mingw-w64 winpthreads library) is avoided. +dnl The user can still override it at installation time, by using the +dnl configure option '--enable-threads'. + +AC_DEFUN([gl_AVOID_WINPTHREAD], [ + m4_divert_text([INIT_PREPARE], [gl_use_winpthreads_default=no]) +]) + + dnl Survey of platforms: dnl dnl Platform Available Compiler Supports test-lock @@ -362,7 +440,6 @@ dnl dnl Mac OS X 10.[123] posix -lpthread Y OK dnl dnl Solaris 7,8,9 posix -lpthread Y Sol 7,8: 0.0; Sol 9: OK -dnl solaris -lthread Y Sol 7,8: 0.0; Sol 9: OK dnl dnl HP-UX 11 posix -lpthread N (cc) OK dnl Y (gcc) @@ -376,8 +453,6 @@ dnl -lpthread (gcc) Y dnl dnl Cygwin posix -lpthread Y OK dnl -dnl Any of the above pth -lpth 0.0 -dnl dnl Mingw windows N OK dnl dnl BeOS 5 -- diff --git a/gnulib/import/m4/time_h.m4 b/gnulib/import/m4/time_h.m4 index eb2a631e2ce..f08f29b35ea 100644 --- a/gnulib/import/m4/time_h.m4 +++ b/gnulib/import/m4/time_h.m4 @@ -1,8 +1,8 @@ # Configure a more-standard replacement for <time.h>. -# Copyright (C) 2000-2001, 2003-2007, 2009-2016 Free Software Foundation, Inc. +# Copyright (C) 2000-2001, 2003-2007, 2009-2019 Free Software Foundation, Inc. -# serial 9 +# serial 11 # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, @@ -104,24 +104,34 @@ AC_DEFUN([gl_TIME_MODULE_INDICATOR], AC_DEFUN([gl_HEADER_TIME_H_DEFAULTS], [ + GNULIB_CTIME=0; AC_SUBST([GNULIB_CTIME]) GNULIB_MKTIME=0; AC_SUBST([GNULIB_MKTIME]) + GNULIB_LOCALTIME=0; AC_SUBST([GNULIB_LOCALTIME]) GNULIB_NANOSLEEP=0; AC_SUBST([GNULIB_NANOSLEEP]) + GNULIB_STRFTIME=0; AC_SUBST([GNULIB_STRFTIME]) GNULIB_STRPTIME=0; AC_SUBST([GNULIB_STRPTIME]) GNULIB_TIMEGM=0; AC_SUBST([GNULIB_TIMEGM]) GNULIB_TIME_R=0; AC_SUBST([GNULIB_TIME_R]) GNULIB_TIME_RZ=0; AC_SUBST([GNULIB_TIME_RZ]) + GNULIB_TZSET=0; AC_SUBST([GNULIB_TZSET]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_DECL_LOCALTIME_R=1; AC_SUBST([HAVE_DECL_LOCALTIME_R]) HAVE_NANOSLEEP=1; AC_SUBST([HAVE_NANOSLEEP]) HAVE_STRPTIME=1; AC_SUBST([HAVE_STRPTIME]) HAVE_TIMEGM=1; AC_SUBST([HAVE_TIMEGM]) + HAVE_TZSET=1; AC_SUBST([HAVE_TZSET]) + dnl Even GNU libc does not have timezone_t yet. + HAVE_TIMEZONE_T=0; AC_SUBST([HAVE_TIMEZONE_T]) dnl If another module says to replace or to not replace, do that. dnl Otherwise, replace only if someone compiles with -DGNULIB_PORTCHECK; dnl this lets maintainers check for portability. + REPLACE_CTIME=GNULIB_PORTCHECK; AC_SUBST([REPLACE_CTIME]) REPLACE_LOCALTIME_R=GNULIB_PORTCHECK; AC_SUBST([REPLACE_LOCALTIME_R]) REPLACE_MKTIME=GNULIB_PORTCHECK; AC_SUBST([REPLACE_MKTIME]) REPLACE_NANOSLEEP=GNULIB_PORTCHECK; AC_SUBST([REPLACE_NANOSLEEP]) + REPLACE_STRFTIME=GNULIB_PORTCHECK; AC_SUBST([REPLACE_STRFTIME]) REPLACE_TIMEGM=GNULIB_PORTCHECK; AC_SUBST([REPLACE_TIMEGM]) + REPLACE_TZSET=GNULIB_PORTCHECK; AC_SUBST([REPLACE_TZSET]) dnl Hack so that the time module doesn't depend on the sys_time module. dnl First, default GNULIB_GETTIMEOFDAY to 0 if sys_time is absent. diff --git a/gnulib/import/m4/time_r.m4 b/gnulib/import/m4/time_r.m4 index 21b4a2cc18e..cc4b3e009b9 100644 --- a/gnulib/import/m4/time_r.m4 +++ b/gnulib/import/m4/time_r.m4 @@ -1,6 +1,6 @@ dnl Reentrant time functions: localtime_r, gmtime_r. -dnl Copyright (C) 2003, 2006-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2003, 2006-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -17,7 +17,15 @@ AC_DEFUN([gl_TIME_R], dnl Some systems don't declare localtime_r() and gmtime_r() if _REENTRANT is dnl not defined. - AC_CHECK_DECLS([localtime_r], [], [], [[#include <time.h>]]) + AC_CHECK_DECLS([localtime_r], [], [], + [[/* mingw's <time.h> provides the functions asctime_r, ctime_r, + gmtime_r, localtime_r only if <unistd.h> or <pthread.h> has + been included before. */ + #if defined __MINGW32__ + # include <unistd.h> + #endif + #include <time.h> + ]]) if test $ac_cv_have_decl_localtime_r = no; then HAVE_DECL_LOCALTIME_R=0 fi @@ -29,7 +37,14 @@ AC_DEFUN([gl_TIME_R], [gl_cv_time_r_posix], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( - [[#include <time.h>]], + [[/* mingw's <time.h> provides the functions asctime_r, ctime_r, + gmtime_r, localtime_r only if <unistd.h> or <pthread.h> has + been included before. */ + #if defined __MINGW32__ + # include <unistd.h> + #endif + #include <time.h> + ]], [[/* We don't need to append 'restrict's to the argument types, even though the POSIX signature has the 'restrict's, since C99 says they can't affect type compatibility. */ @@ -49,6 +64,32 @@ AC_DEFUN([gl_TIME_R], fi else HAVE_LOCALTIME_R=0 + dnl On mingw, localtime_r() is defined as an inline function; use through a + dnl direct function call works but the use as a function pointer leads to a + dnl link error. + AC_CACHE_CHECK([whether localtime_r exists as an inline function], + [gl_cv_func_localtime_r_inline], + [AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[/* mingw's <time.h> provides the functions asctime_r, ctime_r, + gmtime_r, localtime_r only if <unistd.h> or <pthread.h> has + been included before. */ + #if defined __MINGW32__ + # include <unistd.h> + #endif + #include <time.h> + ]], + [[time_t a; + struct tm r; + localtime_r (&a, &r); + ]]) + ], + [gl_cv_func_localtime_r_inline=yes], + [gl_cv_func_localtime_r_inline=no]) + ]) + if test $gl_cv_func_localtime_r_inline = yes; then + REPLACE_LOCALTIME_R=1 + fi fi ]) diff --git a/gnulib/import/m4/unistd-safer.m4 b/gnulib/import/m4/unistd-safer.m4 index ceb5cc66bbf..5e2a1bed688 100644 --- a/gnulib/import/m4/unistd-safer.m4 +++ b/gnulib/import/m4/unistd-safer.m4 @@ -1,5 +1,5 @@ #serial 9 -dnl Copyright (C) 2002, 2005-2006, 2009-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2002, 2005-2006, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/unistd_h.m4 b/gnulib/import/m4/unistd_h.m4 index 544dadb4122..18b7140e598 100644 --- a/gnulib/import/m4/unistd_h.m4 +++ b/gnulib/import/m4/unistd_h.m4 @@ -1,5 +1,5 @@ -# unistd_h.m4 serial 68 -dnl Copyright (C) 2006-2016 Free Software Foundation, Inc. +# unistd_h.m4 serial 76 +dnl Copyright (C) 2006-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -37,17 +37,17 @@ AC_DEFUN([gl_UNISTD_H], # include <fcntl.h> # include <stdio.h> # include <stdlib.h> -# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ +# if defined _WIN32 && ! defined __CYGWIN__ # include <io.h> # endif #endif - ]], [chdir chown dup dup2 dup3 environ euidaccess faccessat fchdir fchownat - fdatasync fsync ftruncate getcwd getdomainname getdtablesize getgroups - gethostname getlogin getlogin_r getpagesize + ]], [access chdir chown dup dup2 dup3 environ euidaccess faccessat fchdir + fchownat fdatasync fsync ftruncate getcwd getdomainname getdtablesize + getgroups gethostname getlogin getlogin_r getpagesize getpass getusershell setusershell endusershell group_member isatty lchown link linkat lseek pipe pipe2 pread pwrite - readlink readlinkat rmdir sethostname sleep symlink symlinkat ttyname_r - unlink unlinkat usleep]) + readlink readlinkat rmdir sethostname sleep symlink symlinkat + truncate ttyname_r unlink unlinkat usleep]) ]) AC_DEFUN([gl_UNISTD_MODULE_INDICATOR], @@ -61,9 +61,11 @@ AC_DEFUN([gl_UNISTD_MODULE_INDICATOR], AC_DEFUN([gl_UNISTD_H_DEFAULTS], [ + GNULIB_ACCESS=0; AC_SUBST([GNULIB_ACCESS]) GNULIB_CHDIR=0; AC_SUBST([GNULIB_CHDIR]) GNULIB_CHOWN=0; AC_SUBST([GNULIB_CHOWN]) GNULIB_CLOSE=0; AC_SUBST([GNULIB_CLOSE]) + GNULIB_COPY_FILE_RANGE=0; AC_SUBST([GNULIB_COPY_FILE_RANGE]) GNULIB_DUP=0; AC_SUBST([GNULIB_DUP]) GNULIB_DUP2=0; AC_SUBST([GNULIB_DUP2]) GNULIB_DUP3=0; AC_SUBST([GNULIB_DUP3]) @@ -83,6 +85,7 @@ AC_DEFUN([gl_UNISTD_H_DEFAULTS], GNULIB_GETLOGIN=0; AC_SUBST([GNULIB_GETLOGIN]) GNULIB_GETLOGIN_R=0; AC_SUBST([GNULIB_GETLOGIN_R]) GNULIB_GETPAGESIZE=0; AC_SUBST([GNULIB_GETPAGESIZE]) + GNULIB_GETPASS=0; AC_SUBST([GNULIB_GETPASS]) GNULIB_GETUSERSHELL=0; AC_SUBST([GNULIB_GETUSERSHELL]) GNULIB_GROUP_MEMBER=0; AC_SUBST([GNULIB_GROUP_MEMBER]) GNULIB_ISATTY=0; AC_SUBST([GNULIB_ISATTY]) @@ -102,6 +105,7 @@ AC_DEFUN([gl_UNISTD_H_DEFAULTS], GNULIB_SLEEP=0; AC_SUBST([GNULIB_SLEEP]) GNULIB_SYMLINK=0; AC_SUBST([GNULIB_SYMLINK]) GNULIB_SYMLINKAT=0; AC_SUBST([GNULIB_SYMLINKAT]) + GNULIB_TRUNCATE=0; AC_SUBST([GNULIB_TRUNCATE]) GNULIB_TTYNAME_R=0; AC_SUBST([GNULIB_TTYNAME_R]) GNULIB_UNISTD_H_NONBLOCKING=0; AC_SUBST([GNULIB_UNISTD_H_NONBLOCKING]) GNULIB_UNISTD_H_SIGPIPE=0; AC_SUBST([GNULIB_UNISTD_H_SIGPIPE]) @@ -111,6 +115,7 @@ AC_DEFUN([gl_UNISTD_H_DEFAULTS], GNULIB_WRITE=0; AC_SUBST([GNULIB_WRITE]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_CHOWN=1; AC_SUBST([HAVE_CHOWN]) + HAVE_COPY_FILE_RANGE=1; AC_SUBST([HAVE_COPY_FILE_RANGE]) HAVE_DUP2=1; AC_SUBST([HAVE_DUP2]) HAVE_DUP3=1; AC_SUBST([HAVE_DUP3]) HAVE_EUIDACCESS=1; AC_SUBST([HAVE_EUIDACCESS]) @@ -125,6 +130,7 @@ AC_DEFUN([gl_UNISTD_H_DEFAULTS], HAVE_GETHOSTNAME=1; AC_SUBST([HAVE_GETHOSTNAME]) HAVE_GETLOGIN=1; AC_SUBST([HAVE_GETLOGIN]) HAVE_GETPAGESIZE=1; AC_SUBST([HAVE_GETPAGESIZE]) + HAVE_GETPASS=1; AC_SUBST([HAVE_GETPASS]) HAVE_GROUP_MEMBER=1; AC_SUBST([HAVE_GROUP_MEMBER]) HAVE_LCHOWN=1; AC_SUBST([HAVE_LCHOWN]) HAVE_LINK=1; AC_SUBST([HAVE_LINK]) @@ -145,17 +151,21 @@ AC_DEFUN([gl_UNISTD_H_DEFAULTS], HAVE_DECL_FCHDIR=1; AC_SUBST([HAVE_DECL_FCHDIR]) HAVE_DECL_FDATASYNC=1; AC_SUBST([HAVE_DECL_FDATASYNC]) HAVE_DECL_GETDOMAINNAME=1; AC_SUBST([HAVE_DECL_GETDOMAINNAME]) + HAVE_DECL_GETLOGIN=1; AC_SUBST([HAVE_DECL_GETLOGIN]) HAVE_DECL_GETLOGIN_R=1; AC_SUBST([HAVE_DECL_GETLOGIN_R]) HAVE_DECL_GETPAGESIZE=1; AC_SUBST([HAVE_DECL_GETPAGESIZE]) HAVE_DECL_GETUSERSHELL=1; AC_SUBST([HAVE_DECL_GETUSERSHELL]) HAVE_DECL_SETHOSTNAME=1; AC_SUBST([HAVE_DECL_SETHOSTNAME]) + HAVE_DECL_TRUNCATE=1; AC_SUBST([HAVE_DECL_TRUNCATE]) HAVE_DECL_TTYNAME_R=1; AC_SUBST([HAVE_DECL_TTYNAME_R]) HAVE_OS_H=0; AC_SUBST([HAVE_OS_H]) HAVE_SYS_PARAM_H=0; AC_SUBST([HAVE_SYS_PARAM_H]) + REPLACE_ACCESS=0; AC_SUBST([REPLACE_ACCESS]) REPLACE_CHOWN=0; AC_SUBST([REPLACE_CHOWN]) REPLACE_CLOSE=0; AC_SUBST([REPLACE_CLOSE]) REPLACE_DUP=0; AC_SUBST([REPLACE_DUP]) REPLACE_DUP2=0; AC_SUBST([REPLACE_DUP2]) + REPLACE_FACCESSAT=0; AC_SUBST([REPLACE_FACCESSAT]) REPLACE_FCHOWNAT=0; AC_SUBST([REPLACE_FCHOWNAT]) REPLACE_FTRUNCATE=0; AC_SUBST([REPLACE_FTRUNCATE]) REPLACE_GETCWD=0; AC_SUBST([REPLACE_GETCWD]) @@ -164,6 +174,7 @@ AC_DEFUN([gl_UNISTD_H_DEFAULTS], REPLACE_GETLOGIN_R=0; AC_SUBST([REPLACE_GETLOGIN_R]) REPLACE_GETGROUPS=0; AC_SUBST([REPLACE_GETGROUPS]) REPLACE_GETPAGESIZE=0; AC_SUBST([REPLACE_GETPAGESIZE]) + REPLACE_GETPASS=0; AC_SUBST([REPLACE_GETPASS]) REPLACE_ISATTY=0; AC_SUBST([REPLACE_ISATTY]) REPLACE_LCHOWN=0; AC_SUBST([REPLACE_LCHOWN]) REPLACE_LINK=0; AC_SUBST([REPLACE_LINK]) @@ -178,6 +189,7 @@ AC_DEFUN([gl_UNISTD_H_DEFAULTS], REPLACE_SLEEP=0; AC_SUBST([REPLACE_SLEEP]) REPLACE_SYMLINK=0; AC_SUBST([REPLACE_SYMLINK]) REPLACE_SYMLINKAT=0; AC_SUBST([REPLACE_SYMLINKAT]) + REPLACE_TRUNCATE=0; AC_SUBST([REPLACE_TRUNCATE]) REPLACE_TTYNAME_R=0; AC_SUBST([REPLACE_TTYNAME_R]) REPLACE_UNLINK=0; AC_SUBST([REPLACE_UNLINK]) REPLACE_UNLINKAT=0; AC_SUBST([REPLACE_UNLINKAT]) diff --git a/gnulib/import/m4/warn-on-use.m4 b/gnulib/import/m4/warn-on-use.m4 index 08440ec593b..7ebe2d317a5 100644 --- a/gnulib/import/m4/warn-on-use.m4 +++ b/gnulib/import/m4/warn-on-use.m4 @@ -1,11 +1,13 @@ -# warn-on-use.m4 serial 5 -dnl Copyright (C) 2010-2016 Free Software Foundation, Inc. +# warn-on-use.m4 serial 6 +dnl Copyright (C) 2010-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. # gl_WARN_ON_USE_PREPARE(INCLUDES, NAMES) # --------------------------------------- +# If the module 'posixcheck' is in use: +# # For each whitespace-separated element in the list of NAMES, define # HAVE_RAW_DECL_name if the function has a declaration among INCLUDES # even after being undefined as a macro. @@ -23,25 +25,27 @@ dnl with or without modifications, as long as this notice is preserved. # needing gl_WARN_ON_USE_PREPARE. AC_DEFUN([gl_WARN_ON_USE_PREPARE], [ - m4_foreach_w([gl_decl], [$2], - [AH_TEMPLATE([HAVE_RAW_DECL_]AS_TR_CPP(m4_defn([gl_decl])), - [Define to 1 if ]m4_defn([gl_decl])[ is declared even after - undefining macros.])])dnl + m4_ifdef([gl_POSIXCHECK], + [m4_foreach_w([gl_decl], [$2], + [AH_TEMPLATE([HAVE_RAW_DECL_]AS_TR_CPP(m4_defn([gl_decl])), + [Define to 1 if ]m4_defn([gl_decl])[ is declared even after + undefining macros.])])dnl dnl FIXME: gl_Symbol must be used unquoted until we can assume dnl autoconf 2.64 or newer. - for gl_func in m4_flatten([$2]); do - AS_VAR_PUSHDEF([gl_Symbol], [gl_cv_have_raw_decl_$gl_func])dnl - AC_CACHE_CHECK([whether $gl_func is declared without a macro], - gl_Symbol, - [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$1], + for gl_func in m4_flatten([$2]); do + AS_VAR_PUSHDEF([gl_Symbol], [gl_cv_have_raw_decl_$gl_func])dnl + AC_CACHE_CHECK([whether $gl_func is declared without a macro], + gl_Symbol, + [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$1], [@%:@undef $gl_func (void) $gl_func;])], - [AS_VAR_SET(gl_Symbol, [yes])], [AS_VAR_SET(gl_Symbol, [no])])]) - AS_VAR_IF(gl_Symbol, [yes], - [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_RAW_DECL_$gl_func]), [1]) - dnl shortcut - if the raw declaration exists, then set a cache - dnl variable to allow skipping any later AC_CHECK_DECL efforts - eval ac_cv_have_decl_$gl_func=yes]) - AS_VAR_POPDEF([gl_Symbol])dnl - done + [AS_VAR_SET(gl_Symbol, [yes])], [AS_VAR_SET(gl_Symbol, [no])])]) + AS_VAR_IF(gl_Symbol, [yes], + [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_RAW_DECL_$gl_func]), [1]) + dnl shortcut - if the raw declaration exists, then set a cache + dnl variable to allow skipping any later AC_CHECK_DECL efforts + eval ac_cv_have_decl_$gl_func=yes]) + AS_VAR_POPDEF([gl_Symbol])dnl + done + ]) ]) diff --git a/gnulib/import/m4/wchar_h.m4 b/gnulib/import/m4/wchar_h.m4 index 16017a59fbb..8c6ebccfcbd 100644 --- a/gnulib/import/m4/wchar_h.m4 +++ b/gnulib/import/m4/wchar_h.m4 @@ -1,13 +1,13 @@ dnl A placeholder for ISO C99 <wchar.h>, for platforms that have issues. -dnl Copyright (C) 2007-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2007-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl Written by Eric Blake. -# wchar_h.m4 serial 40 +# wchar_h.m4 serial 44 AC_DEFUN([gl_WCHAR_H], [ @@ -35,6 +35,8 @@ AC_DEFUN([gl_WCHAR_H], fi AC_SUBST([HAVE_WINT_T]) + AC_REQUIRE([gl_TYPE_WINT_T_PREREQ]) + dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use. gl_WARN_ON_USE_PREPARE([[ @@ -53,7 +55,7 @@ AC_DEFUN([gl_WCHAR_H], wcsrtombs wcsnrtombs wcwidth wmemchr wmemcmp wmemcpy wmemmove wmemset wcslen wcsnlen wcscpy wcpcpy wcsncpy wcpncpy wcscat wcsncat wcscmp wcsncmp wcscasecmp wcsncasecmp wcscoll wcsxfrm wcsdup wcschr wcsrchr - wcscspn wcsspn wcspbrk wcsstr wcstok wcswidth + wcscspn wcsspn wcspbrk wcsstr wcstok wcswidth wcsftime ]) ]) @@ -61,8 +63,8 @@ dnl Check whether <wchar.h> is usable at all. AC_DEFUN([gl_WCHAR_H_INLINE_OK], [ dnl Test whether <wchar.h> suffers due to the transition from '__inline' to - dnl 'gnu_inline'. See <http://sourceware.org/bugzilla/show_bug.cgi?id=4022> - dnl and <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42440>. In summary, + dnl 'gnu_inline'. See <https://sourceware.org/bugzilla/show_bug.cgi?id=4022> + dnl and <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=42440>. In summary, dnl glibc version 2.5 or older, together with gcc version 4.3 or newer and dnl the option -std=c99 or -std=gnu99, leads to a broken <wchar.h>. AC_CACHE_CHECK([whether <wchar.h> uses 'inline' correctly], @@ -88,7 +90,8 @@ int main () { return zero(); } dnl that the object file has the latter name from the start. save_ac_compile="$ac_compile" ac_compile=`echo "$save_ac_compile" | sed s/conftest/conftest1/` - if AC_TRY_EVAL([ac_compile]); then + if echo '#include "conftest.c"' >conftest1.c && + AC_TRY_EVAL([ac_compile]); then AC_LANG_CONFTEST([ AC_LANG_SOURCE([[#define wcstod renamed_wcstod /* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before @@ -103,7 +106,8 @@ int zero (void) { return 0; } ]])]) dnl See note above about renaming object files. ac_compile=`echo "$save_ac_compile" | sed s/conftest/conftest2/` - if AC_TRY_EVAL([ac_compile]); then + if echo '#include "conftest.c"' >conftest2.c && + AC_TRY_EVAL([ac_compile]); then if $CC -o conftest$ac_exeext $CFLAGS $LDFLAGS conftest1.$ac_objext conftest2.$ac_objext $LIBS >&AS_MESSAGE_LOG_FD 2>&1; then : else @@ -112,7 +116,7 @@ int zero (void) { return 0; } fi fi ac_compile="$save_ac_compile" - rm -f conftest1.$ac_objext conftest2.$ac_objext conftest$ac_exeext + rm -f conftest[12].c conftest[12].$ac_objext conftest$ac_exeext ]) if test $gl_cv_header_wchar_h_correct_inline = no; then AC_MSG_ERROR([<wchar.h> cannot be used with this compiler ($CC $CFLAGS $CPPFLAGS). @@ -120,7 +124,7 @@ This is a known interoperability problem of glibc <= 2.5 with gcc >= 4.3 in C99 mode. You have four options: - Add the flag -fgnu89-inline to CC and reconfigure, or - Fix your include files, using parts of - <http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=b037a293a48718af30d706c2e18c929d0e69a621>, or + <https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=b037a293a48718af30d706c2e18c929d0e69a621>, or - Use a gcc version older than 4.3, or - Don't use the flags -std=c99 or -std=gnu99. Configuration aborted.]) @@ -177,6 +181,7 @@ AC_DEFUN([gl_WCHAR_H_DEFAULTS], GNULIB_WCSSTR=0; AC_SUBST([GNULIB_WCSSTR]) GNULIB_WCSTOK=0; AC_SUBST([GNULIB_WCSTOK]) GNULIB_WCSWIDTH=0; AC_SUBST([GNULIB_WCSWIDTH]) + GNULIB_WCSFTIME=0; AC_SUBST([GNULIB_WCSFTIME]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_BTOWC=1; AC_SUBST([HAVE_BTOWC]) HAVE_MBSINIT=1; AC_SUBST([HAVE_MBSINIT]) @@ -215,6 +220,7 @@ AC_DEFUN([gl_WCHAR_H_DEFAULTS], HAVE_WCSSTR=1; AC_SUBST([HAVE_WCSSTR]) HAVE_WCSTOK=1; AC_SUBST([HAVE_WCSTOK]) HAVE_WCSWIDTH=1; AC_SUBST([HAVE_WCSWIDTH]) + HAVE_WCSFTIME=1; AC_SUBST([HAVE_WCSFTIME]) HAVE_DECL_WCTOB=1; AC_SUBST([HAVE_DECL_WCTOB]) HAVE_DECL_WCWIDTH=1; AC_SUBST([HAVE_DECL_WCWIDTH]) REPLACE_MBSTATE_T=0; AC_SUBST([REPLACE_MBSTATE_T]) @@ -230,4 +236,6 @@ AC_DEFUN([gl_WCHAR_H_DEFAULTS], REPLACE_WCSNRTOMBS=0; AC_SUBST([REPLACE_WCSNRTOMBS]) REPLACE_WCWIDTH=0; AC_SUBST([REPLACE_WCWIDTH]) REPLACE_WCSWIDTH=0; AC_SUBST([REPLACE_WCSWIDTH]) + REPLACE_WCSFTIME=0; AC_SUBST([REPLACE_WCSFTIME]) + REPLACE_WCSTOK=0; AC_SUBST([REPLACE_WCSTOK]) ]) diff --git a/gnulib/import/m4/wchar_t.m4 b/gnulib/import/m4/wchar_t.m4 index 2db8c3f2f62..5db5815209d 100644 --- a/gnulib/import/m4/wchar_t.m4 +++ b/gnulib/import/m4/wchar_t.m4 @@ -1,5 +1,5 @@ # wchar_t.m4 serial 4 (gettext-0.18.2) -dnl Copyright (C) 2002-2003, 2008-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2002-2003, 2008-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. diff --git a/gnulib/import/m4/wctype_h.m4 b/gnulib/import/m4/wctype_h.m4 index accc001ca3e..d5acb72d6b2 100644 --- a/gnulib/import/m4/wctype_h.m4 +++ b/gnulib/import/m4/wctype_h.m4 @@ -1,8 +1,8 @@ -# wctype_h.m4 serial 18 +# wctype_h.m4 serial 22 dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it. -dnl Copyright (C) 2006-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2006-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -30,6 +30,8 @@ AC_DEFUN([gl_WCTYPE_H], fi AC_SUBST([HAVE_WINT_T]) + AC_REQUIRE([gl_TYPE_WINT_T_PREREQ]) + gl_CHECK_NEXT_HEADERS([wctype.h]) if test $ac_cv_header_wctype_h = yes; then if test $ac_cv_func_iswcntrl = yes; then @@ -51,7 +53,8 @@ AC_DEFUN([gl_WCTYPE_H], int main () { return iswprint ('x') == 0; } ]])], [gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no], - [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h> + [dnl Guess no on Linux libc5, yes otherwise. + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h> #if __GNU_LIBRARY__ == 1 Linux libc5 i18n is broken. #endif]], [])], @@ -66,10 +69,14 @@ AC_DEFUN([gl_WCTYPE_H], fi AC_SUBST([HAVE_WCTYPE_H]) - case "$gl_cv_func_iswcntrl_works" in - *yes) REPLACE_ISWCNTRL=0 ;; - *) REPLACE_ISWCNTRL=1 ;; - esac + if test $GNULIB_OVERRIDES_WINT_T = 1; then + REPLACE_ISWCNTRL=1 + else + case "$gl_cv_func_iswcntrl_works" in + *yes) REPLACE_ISWCNTRL=0 ;; + *) REPLACE_ISWCNTRL=1 ;; + esac + fi AC_SUBST([REPLACE_ISWCNTRL]) if test $HAVE_ISWCNTRL = 0 || test $REPLACE_ISWCNTRL = 1; then diff --git a/gnulib/import/m4/wint_t.m4 b/gnulib/import/m4/wint_t.m4 index 8ff2a5b5a28..61e8a23d278 100644 --- a/gnulib/import/m4/wint_t.m4 +++ b/gnulib/import/m4/wint_t.m4 @@ -1,11 +1,12 @@ -# wint_t.m4 serial 5 (gettext-0.18.2) -dnl Copyright (C) 2003, 2007-2016 Free Software Foundation, Inc. +# wint_t.m4 serial 7 +dnl Copyright (C) 2003, 2007-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible. -dnl Test whether <wchar.h> has the 'wint_t' type. +dnl Test whether <wchar.h> has the 'wint_t' type and whether gnulib's +dnl <wchar.h> or <wctype.h> would, if present, override 'wint_t'. dnl Prerequisite: AC_PROG_CC AC_DEFUN([gt_TYPE_WINT_T], @@ -28,5 +29,46 @@ AC_DEFUN([gt_TYPE_WINT_T], [gt_cv_c_wint_t=no])]) if test $gt_cv_c_wint_t = yes; then AC_DEFINE([HAVE_WINT_T], [1], [Define if you have the 'wint_t' type.]) + + dnl Determine whether gnulib's <wchar.h> or <wctype.h> would, if present, + dnl override 'wint_t'. + AC_CACHE_CHECK([whether wint_t is too small], + [gl_cv_type_wint_t_too_small], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[ +/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before + <wchar.h>. + BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be + included before <wchar.h>. */ +#if !(defined __GLIBC__ && !defined __UCLIBC__) +# include <stddef.h> +# include <stdio.h> +# include <time.h> +#endif +#include <wchar.h> + int verify[sizeof (wint_t) < sizeof (int) ? -1 : 1]; + ]])], + [gl_cv_type_wint_t_too_small=no], + [gl_cv_type_wint_t_too_small=yes])]) + if test $gl_cv_type_wint_t_too_small = yes; then + GNULIB_OVERRIDES_WINT_T=1 + else + GNULIB_OVERRIDES_WINT_T=0 + fi + else + GNULIB_OVERRIDES_WINT_T=0 + fi + AC_SUBST([GNULIB_OVERRIDES_WINT_T]) +]) + +dnl Prerequisites of the 'wint_t' override. +AC_DEFUN([gl_TYPE_WINT_T_PREREQ], +[ + AC_CHECK_HEADERS_ONCE([crtdefs.h]) + if test $ac_cv_header_crtdefs_h = yes; then + HAVE_CRTDEFS_H=1 + else + HAVE_CRTDEFS_H=0 fi + AC_SUBST([HAVE_CRTDEFS_H]) ]) |