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Diffstat (limited to 'gnulib/import/m4/largefile.m4')
| -rw-r--r-- | gnulib/import/m4/largefile.m4 | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/gnulib/import/m4/largefile.m4 b/gnulib/import/m4/largefile.m4 deleted file mode 100644 index 65d5a15183e..00000000000 --- a/gnulib/import/m4/largefile.m4 +++ /dev/null @@ -1,177 +0,0 @@ -# Enable large files on systems where this is not the default. - -# 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. -m4_version_prereq([2.70], [] ,[ - -# _AC_SYS_LARGEFILE_TEST_INCLUDES -# ------------------------------- -m4_define([_AC_SYS_LARGEFILE_TEST_INCLUDES], -[@%:@include <sys/types.h> - /* Check that off_t can represent 2**63 - 1 correctly. - We can't simply define LARGE_OFF_T to be 9223372036854775807, - since some C++ compilers masquerading as C compilers - incorrectly reject 9223372036854775807. */ -@%:@define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) - int off_t_is_large[[(LARGE_OFF_T % 2147483629 == 721 - && LARGE_OFF_T % 2147483647 == 1) - ? 1 : -1]];[]dnl -]) - - -# _AC_SYS_LARGEFILE_MACRO_VALUE(C-MACRO, VALUE, -# CACHE-VAR, -# DESCRIPTION, -# PROLOGUE, [FUNCTION-BODY]) -# -------------------------------------------------------- -m4_define([_AC_SYS_LARGEFILE_MACRO_VALUE], -[AC_CACHE_CHECK([for $1 value needed for large files], [$3], -[while :; do - m4_ifval([$6], [AC_LINK_IFELSE], [AC_COMPILE_IFELSE])( - [AC_LANG_PROGRAM([$5], [$6])], - [$3=no; break]) - m4_ifval([$6], [AC_LINK_IFELSE], [AC_COMPILE_IFELSE])( - [AC_LANG_PROGRAM([@%:@define $1 $2 -$5], [$6])], - [$3=$2; break]) - $3=unknown - break -done]) -case $$3 in #( - no | unknown) ;; - *) AC_DEFINE_UNQUOTED([$1], [$$3], [$4]);; -esac -rm -rf conftest*[]dnl -])# _AC_SYS_LARGEFILE_MACRO_VALUE - - -# AC_SYS_LARGEFILE -# ---------------- -# By default, many hosts won't let programs access large files; -# one must use special compiler options to get large-file access to work. -# For more details about this brain damage please see: -# http://www.unix.org/version2/whatsnew/lfs20mar.html -AC_DEFUN([AC_SYS_LARGEFILE], -[AC_ARG_ENABLE(largefile, - [ --disable-largefile omit support for large files]) -if test "$enable_largefile" != no; then - - AC_CACHE_CHECK([for special C compiler options needed for large files], - ac_cv_sys_largefile_CC, - [ac_cv_sys_largefile_CC=no - if test "$GCC" != yes; then - ac_save_CC=$CC - while :; do - # IRIX 6.2 and later do not support large files by default, - # so use the C compiler's -n32 option if that helps. - AC_LANG_CONFTEST([AC_LANG_PROGRAM([_AC_SYS_LARGEFILE_TEST_INCLUDES])]) - AC_COMPILE_IFELSE([], [break]) - CC="$CC -n32" - AC_COMPILE_IFELSE([], [ac_cv_sys_largefile_CC=' -n32'; break]) - break - done - CC=$ac_save_CC - rm -f conftest.$ac_ext - fi]) - if test "$ac_cv_sys_largefile_CC" != no; then - CC=$CC$ac_cv_sys_largefile_CC - fi - - _AC_SYS_LARGEFILE_MACRO_VALUE(_FILE_OFFSET_BITS, 64, - ac_cv_sys_file_offset_bits, - [Number of bits in a file offset, on hosts where this is settable.], - [_AC_SYS_LARGEFILE_TEST_INCLUDES]) - if test $ac_cv_sys_file_offset_bits = unknown; then - _AC_SYS_LARGEFILE_MACRO_VALUE(_LARGE_FILES, 1, - ac_cv_sys_large_files, - [Define for large files, on AIX-style hosts.], - [_AC_SYS_LARGEFILE_TEST_INCLUDES]) - fi - - AC_DEFINE([_DARWIN_USE_64_BIT_INODE], [1], - [Enable large inode numbers on Mac OS X 10.5.]) -fi -])# AC_SYS_LARGEFILE -])# m4_version_prereq 2.70 - -# Enable large files on systems where this is implemented by Gnulib, not by the -# system headers. -# Set the variables WINDOWS_64_BIT_OFF_T, WINDOWS_64_BIT_ST_SIZE if Gnulib -# overrides ensure that off_t or 'struct size.st_size' are 64-bit, respectively. -AC_DEFUN([gl_LARGEFILE], -[ - AC_REQUIRE([AC_CANONICAL_HOST]) - case "$host_os" in - mingw*) - dnl Native Windows. - dnl mingw64 defines off_t to a 64-bit type already, if - dnl _FILE_OFFSET_BITS=64, which is ensured by AC_SYS_LARGEFILE. - AC_CACHE_CHECK([for 64-bit off_t], [gl_cv_type_off_t_64], - [AC_COMPILE_IFELSE( - [AC_LANG_PROGRAM( - [[#include <sys/types.h> - int verify_off_t_size[sizeof (off_t) >= 8 ? 1 : -1]; - ]], - [[]])], - [gl_cv_type_off_t_64=yes], [gl_cv_type_off_t_64=no]) - ]) - if test $gl_cv_type_off_t_64 = no; then - WINDOWS_64_BIT_OFF_T=1 - else - WINDOWS_64_BIT_OFF_T=0 - fi - 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. - dnl A 64-bit off_t is - dnl - already the default on Mac OS X, FreeBSD, NetBSD, OpenBSD, IRIX, - dnl OSF/1, Cygwin, - dnl - enabled by _FILE_OFFSET_BITS=64 (ensured by AC_SYS_LARGEFILE) on - dnl glibc, HP-UX, Solaris, - dnl - enabled by _LARGE_FILES=1 (ensured by AC_SYS_LARGEFILE) on AIX, - dnl - impossible to achieve on Minix 3.1.8. - WINDOWS_64_BIT_OFF_T=0 - WINDOWS_64_BIT_ST_SIZE=0 - ;; - esac -]) |