1
Fork 0
mirror of git://git.sv.gnu.org/emacs.git synced 2026-01-10 05:30:45 -08:00
emacs/m4/libgmp.m4
Po Lu ecf08f0621 Merge from savannah/emacs-29
dc4e6b1329 ; Update copyright years in more files
64b3777631 ; Run set-copyright from admin.el
8e1c56ae46 ; Add 2024 to copyright years

# Conflicts:
#	doc/misc/modus-themes.org
#	doc/misc/texinfo.tex
#	etc/NEWS
#	etc/refcards/ru-refcard.tex
#	etc/themes/modus-operandi-theme.el
#	etc/themes/modus-themes.el
#	etc/themes/modus-vivendi-theme.el
#	lib/alloca.in.h
#	lib/binary-io.h
#	lib/c-ctype.h
#	lib/c-strcasecmp.c
#	lib/c-strncasecmp.c
#	lib/careadlinkat.c
#	lib/cloexec.c
#	lib/close-stream.c
#	lib/diffseq.h
#	lib/dup2.c
#	lib/filemode.h
#	lib/fpending.c
#	lib/fpending.h
#	lib/fsusage.c
#	lib/getgroups.c
#	lib/getloadavg.c
#	lib/gettext.h
#	lib/gettime.c
#	lib/gettimeofday.c
#	lib/group-member.c
#	lib/malloc.c
#	lib/md5-stream.c
#	lib/md5.c
#	lib/md5.h
#	lib/memmem.c
#	lib/memrchr.c
#	lib/nanosleep.c
#	lib/save-cwd.h
#	lib/sha1.c
#	lib/sig2str.c
#	lib/stdlib.in.h
#	lib/strtoimax.c
#	lib/strtol.c
#	lib/strtoll.c
#	lib/time_r.c
#	lib/xalloc-oversized.h
#	lisp/auth-source-pass.el
#	lisp/emacs-lisp/lisp-mnt.el
#	lisp/emacs-lisp/timer.el
#	lisp/info-look.el
#	lisp/jit-lock.el
#	lisp/loadhist.el
#	lisp/mail/rmail.el
#	lisp/net/ntlm.el
#	lisp/net/webjump.el
#	lisp/progmodes/asm-mode.el
#	lisp/progmodes/project.el
#	lisp/progmodes/sh-script.el
#	lisp/textmodes/flyspell.el
#	lisp/textmodes/reftex-toc.el
#	lisp/textmodes/reftex.el
#	lisp/textmodes/tex-mode.el
#	lisp/url/url-gw.el
#	m4/alloca.m4
#	m4/clock_time.m4
#	m4/d-type.m4
#	m4/dirent_h.m4
#	m4/dup2.m4
#	m4/euidaccess.m4
#	m4/fchmodat.m4
#	m4/filemode.m4
#	m4/fsusage.m4
#	m4/getgroups.m4
#	m4/getloadavg.m4
#	m4/getrandom.m4
#	m4/gettime.m4
#	m4/gettimeofday.m4
#	m4/gnulib-common.m4
#	m4/group-member.m4
#	m4/inttypes.m4
#	m4/malloc.m4
#	m4/manywarnings.m4
#	m4/mempcpy.m4
#	m4/memrchr.m4
#	m4/mkostemp.m4
#	m4/mktime.m4
#	m4/nproc.m4
#	m4/nstrftime.m4
#	m4/pathmax.m4
#	m4/pipe2.m4
#	m4/pselect.m4
#	m4/pthread_sigmask.m4
#	m4/readlink.m4
#	m4/realloc.m4
#	m4/sig2str.m4
#	m4/ssize_t.m4
#	m4/stat-time.m4
#	m4/stddef_h.m4
#	m4/stdint.m4
#	m4/stdio_h.m4
#	m4/stdlib_h.m4
#	m4/stpcpy.m4
#	m4/strnlen.m4
#	m4/strtoimax.m4
#	m4/strtoll.m4
#	m4/time_h.m4
#	m4/timegm.m4
#	m4/timer_time.m4
#	m4/timespec.m4
#	m4/unistd_h.m4
#	m4/warnings.m4
#	nt/configure.bat
#	nt/preprep.c
#	test/lisp/register-tests.el
2024-01-02 10:28:14 +08:00

70 lines
2.5 KiB
Text

# libgmp.m4 serial 8
# Configure the GMP library or a replacement.
dnl Copyright 2020-2024 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 gl_LIBGMP
dnl Search for an installed libgmp.
dnl If found, set and AC_SUBST HAVE_LIBGMP=yes and the LIBGMP and LTLIBGMP
dnl variables, and augment the CPPFLAGS variable, and #define HAVE_LIBGMP to 1.
dnl Otherwise, set and AC_SUBST HAVE_LIBGMP=no and LIBGMP and LTLIBGMP to
dnl empty.
AC_DEFUN([gl_LIBGMP],
[
AC_ARG_WITH([libgmp],
[AS_HELP_STRING([[--without-libgmp]],
[do not use the GNU Multiple Precision (GMP) library;
this is the default on systems lacking libgmp.])])
HAVE_LIBGMP=no
LIBGMP=
LTLIBGMP=
AS_IF([test "$with_libgmp" != no],
[AC_CHECK_HEADERS([gmp.h gmp/gmp.h], [break])
dnl Prefer AC_LIB_HAVE_LINKFLAGS if the havelib module is also in use.
AS_IF([test "$ac_cv_header_gmp_h" = yes ||
test "$ac_cv_header_gmp_gmp_h" = yes],
[m4_ifdef([gl_HAVE_MODULE_HAVELIB],
[AC_LIB_HAVE_LINKFLAGS([gmp], [],
[#if HAVE_GMP_H
# include <gmp.h>
#else
# include <gmp/gmp.h>
#endif],
[static const mp_limb_t x[2] = { 0x73, 0x55 };
mpz_t tmp;
mpz_roinit_n (tmp, x, 2);
],
[no])],
[gl_saved_LIBS=$LIBS
AC_SEARCH_LIBS([__gmpz_roinit_n], [gmp])
LIBS=$gl_saved_LIBS
case $ac_cv_search___gmpz_roinit_n in
'none needed')
HAVE_LIBGMP=yes;;
-*)
HAVE_LIBGMP=yes
LIBGMP=$ac_cv_search___gmpz_roinit_n
LTLIBGMP=$LIBGMP;;
esac
AC_SUBST([HAVE_LIBGMP])
AC_SUBST([LIBGMP])
AC_SUBST([LTLIBGMP])])])
if test "$with_libgmp,$HAVE_LIBGMP" = yes,no; then
AC_MSG_ERROR(
[GMP not found, although --with-libgmp was specified.m4_ifdef(
[AC_LIB_HAVE_LINKFLAGS],
[ Try specifying --with-libgmp-prefix=DIR.])])
fi])
if test $HAVE_LIBGMP = yes && test "$ac_cv_header_gmp_h" = yes; then
GL_GENERATE_GMP_H=false
else
GL_GENERATE_GMP_H=true
fi
gl_CONDITIONAL([GL_GENERATE_MINI_GMP_H],
[test $HAVE_LIBGMP != yes])
gl_CONDITIONAL([GL_GENERATE_GMP_GMP_H],
[test $HAVE_LIBGMP = yes && test "$ac_cv_header_gmp_h" != yes])
])