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#serial 112 -*- autoconf -*-
dnl Misc type-related macros for coreutils.
# Copyright (C) 1998-2020 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 Jim Meyering.
AC_DEFUN([coreutils_MACROS],
[
AM_MISSING_PROG(HELP2MAN, help2man)
AC_SUBST([MAN])
dnl This macro actually runs replacement code. See isc-posix.m4.
AC_REQUIRE([AC_ISC_POSIX])dnl
gl_CHECK_ALL_TYPES
AC_REQUIRE([gl_CHECK_DECLS])
AC_REQUIRE([gl_PREREQ])
AC_REQUIRE([AC_FUNC_FSEEKO])
# By default, argmatch should fail calling usage (EXIT_FAILURE).
AC_DEFINE([ARGMATCH_DIE], [usage (EXIT_FAILURE)],
[Define to the function xargmatch calls on failures.])
AC_DEFINE([ARGMATCH_DIE_DECL], [void usage (int _e)],
[Define to the declaration of the xargmatch failure function.])
# Ensure VLAs are not used.
# Note -Wvla is implicitly added by gl_MANYWARN_ALL_GCC
AC_DEFINE([GNULIB_NO_VLA], [1], [Define to 1 to disable use of VLAs])
# used by shred
AC_CHECK_FUNCS_ONCE([directio])
coreutils_saved_libs=$LIBS
LIBS="$LIBS $LIB_SELINUX"
# Used by selinux.c.
AC_CHECK_FUNCS([mode_to_security_class], [], [])
LIBS=$coreutils_saved_libs
# Used by sort.c.
AC_CHECK_FUNCS_ONCE([nl_langinfo])
# Used by timeout.c
AC_CHECK_FUNCS_ONCE([setitimer setrlimit prctl])
# Used by tail.c.
AC_CHECK_FUNCS([inotify_init],
[AC_DEFINE([HAVE_INOTIFY], [1],
[Define to 1 if you have usable inotify support.])])
AC_CHECK_FUNCS_ONCE([
endgrent
endpwent
fallocate
fchown
fchmod
ftruncate
iswspace
mkfifo
mbrlen
setgroups
sethostname
siginterrupt
sync
syncfs
sysctl
sysinfo
tcgetpgrp
])
# These checks are for Interix, to avoid its getgr* functions, in favor
# of these replacements. The replacement functions are much more efficient
# because they do not query the domain controller for user information
# when it is not needed.
AC_CHECK_FUNCS_ONCE([
getgrgid_nomembers
getgrnam_nomembers
getgrent_nomembers
])
dnl This can't use AC_REQUIRE; I'm not quite sure why.
cu_PREREQ_STAT_PROG
# for dd.c and shred.c
#
# Use fdatasync only if declared. On MacOS X 10.7, fdatasync exists but
# is not declared, and is ineffective.
LIB_FDATASYNC=
AC_SUBST([LIB_FDATASYNC])
AC_CHECK_DECLS_ONCE([fdatasync])
if test $ac_cv_have_decl_fdatasync = yes; then
coreutils_saved_libs=$LIBS
AC_SEARCH_LIBS([fdatasync], [rt posix4],
[test "$ac_cv_search_fdatasync" = "none required" ||
LIB_FDATASYNC=$ac_cv_search_fdatasync])
AC_CHECK_FUNCS([fdatasync])
LIBS=$coreutils_saved_libs
fi
# Check whether libcap is usable -- for ls --color support
LIB_CAP=
AC_ARG_ENABLE([libcap],
AC_HELP_STRING([--disable-libcap], [disable libcap support]))
if test "X$enable_libcap" != "Xno"; then
AC_CHECK_LIB([cap], [cap_get_file],
[AC_CHECK_HEADER([sys/capability.h],
[LIB_CAP=-lcap
AC_DEFINE([HAVE_CAP], [1], [libcap usability])]
)])
if test "X$LIB_CAP" = "X"; then
if test "X$enable_libcap" = "Xyes"; then
AC_MSG_ERROR([libcap library was not found or not usable])
else
AC_MSG_WARN([libcap library was not found or not usable.])
AC_MSG_WARN([AC_PACKAGE_NAME will be built without capability support.])
fi
fi
else
AC_MSG_WARN([libcap support disabled by user])
fi
AC_SUBST([LIB_CAP])
# See if linking 'seq' requires -lm.
# It does on nearly every system. The single exception (so far) is
# BeOS which has all the math functions in the normal runtime library
# and doesn't have a separate math library.
AC_SUBST([SEQ_LIBM])
ac_seq_body='
static double x, y;
x = floor (x);
x = rint (x);
x = modf (x, &y);'
AC_TRY_LINK([#include <math.h>], [$ac_seq_body], ,
[ac_seq_save_LIBS="$LIBS"
LIBS="$LIBS -lm"
AC_TRY_LINK([#include <math.h>], [$ac_seq_body], [SEQ_LIBM=-lm])
LIBS="$ac_seq_save_LIBS"
])
# See is fpsetprec() required to use extended double precision
# This is needed on 32 bit FreeBSD to give accurate conversion of:
# `numfmt 9223372036854775808`
AC_TRY_LINK([#include <ieeefp.h>],
[#ifdef __i386__
fpsetprec(FP_PE);
#else
# error not required on 64 bit
#endif
], [ac_have_fpsetprec=yes], [ac_have_fpsetprec=no])
if test "$ac_have_fpsetprec" = "yes" ; then
AC_DEFINE([HAVE_FPSETPREC], 1, [whether fpsetprec is present and required])
fi
AC_REQUIRE([AM_LANGINFO_CODESET])
# Accept configure options: --with-tty-group[=GROUP], --without-tty-group
# You can determine the group of a TTY via 'stat --format %G /dev/tty'
# Omitting this option is equivalent to using --without-tty-group.
AC_ARG_WITH([tty-group],
AS_HELP_STRING([--with-tty-group[[[=NAME]]]],
[group used by system for TTYs, "tty" when not specified]
[ (default: do not rely on any group used for TTYs)]),
[tty_group_name=$withval],
[tty_group_name=no])
if test "x$tty_group_name" != xno; then
if test "x$tty_group_name" = xyes; then
tty_group_name=tty
fi
AC_MSG_NOTICE([TTY group used by system set to "$tty_group_name"])
AC_DEFINE_UNQUOTED([TTY_GROUP_NAME], ["$tty_group_name"],
[group used by system for TTYs])
fi
])
AC_DEFUN([gl_CHECK_ALL_HEADERS],
[
AC_CHECK_HEADERS_ONCE([
hurd.h
linux/falloc.h
linux/fs.h
paths.h
priv.h
stropts.h
sys/mtio.h
sys/param.h
sys/systeminfo.h
syslog.h
])
AC_CHECK_HEADERS([sys/sysctl.h], [], [],
[AC_INCLUDES_DEFAULT
[#if HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif]])
])
# This macro must be invoked before any tests that run the compiler.
AC_DEFUN([gl_CHECK_ALL_TYPES],
[
dnl Checks for typedefs, structures, and compiler characteristics.
AC_REQUIRE([gl_BIGENDIAN])
AC_REQUIRE([AC_C_VOLATILE])
AC_REQUIRE([AC_C_INLINE])
AC_REQUIRE([AC_TYPE_UNSIGNED_LONG_LONG_INT])
AC_REQUIRE([gl_CHECK_ALL_HEADERS])
AC_CHECK_MEMBERS(
[struct stat.st_author],,,
[$ac_includes_default
#include <sys/stat.h>
])
AC_REQUIRE([AC_STRUCT_ST_BLOCKS])
AC_REQUIRE([AC_TYPE_GETGROUPS])
AC_REQUIRE([AC_TYPE_MBSTATE_T])
AC_REQUIRE([AC_TYPE_MODE_T])
AC_REQUIRE([AC_TYPE_OFF_T])
AC_REQUIRE([AC_TYPE_PID_T])
AC_REQUIRE([AC_TYPE_SIZE_T])
AC_REQUIRE([AC_TYPE_UID_T])
AC_CHECK_TYPE([ino_t], [unsigned long int])
dnl This relies on the fact that Autoconf's implementation of
dnl AC_CHECK_TYPE checks includes unistd.h.
AC_CHECK_TYPE([major_t], [unsigned int])
AC_CHECK_TYPE([minor_t], [unsigned int])
AC_REQUIRE([AC_HEADER_MAJOR])
])
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