mirror of
git://git.sv.gnu.org/emacs.git
synced 2025-12-05 22:20:24 -08:00
79f15092b9
This incorporates:
2018-05-21 crypto: omit stream ops Emacs doesn’t need
2018-05-13 truncate: Fix compilation error on Android
2018-05-13 imaxdiv: Fix compilation error on Android
2018-05-13 Support selective inclusion of recent mingw.org headers
2018-05-13 Add cross-compilation guesses for Linux systems sans glibc
2018-05-13 stdioext: Fix compilation errors with newer Android headers
2018-05-07 af_alg: Pacify --enable-gcc-warnings
2018-05-06 af_alg: Fix bug with streams that are not at position 0
2018-05-06 Followup to 'af_alg: New module'
2018-05-05 crypto/{md5,sha1,sha256,sha512}: simplify
2018-05-05 af_alg: New module
2018-05-05 af_alg: Improve function signature
2018-04-28 md5sum: Use AF_ALG when available
2018-04-28 sha512sum: Use AF_ALG when available
2018-04-28 sha256sum: Use AF_ALG when available
2018-04-28 sha1sum: Use AF_ALG when available
2018-05-05 all: Replace more http URLs by https URLs
2018-05-03 maint: port more modules to GCC 8
2018-05-03 Simplify code; drop support for Borland C++ on Windows
* admin/merge-gnulib (GNULIB_MODULES): Use crypto/md5-buffer
rather than crypto/md5, since Emacs doesn’t use the stream
operations that in recent Gnulib pull in other stuff Emacs doesn’t
need. Similarly for crypto/sha1-buffer, crypto/sha256-buffer,
crypto/sha512-buffer.
* build-aux/config.guess, build-aux/config.sub, lib/dosname.h:
* lib/dup2.c, lib/errno.in.h, lib/euidaccess.c, lib/fcntl.c:
* lib/fcntl.in.h, lib/fpending.c, lib/fsync.c, lib/getdtablesize.c:
* lib/getopt.c, lib/gettimeofday.c, lib/inttypes.in.h, lib/md5.c:
* lib/md5.h, lib/open.c, lib/pipe2.c, lib/putenv.c, lib/sha1.c:
* lib/sha1.h, lib/sha256.c, lib/sha256.h, lib/sha512.c:
* lib/sha512.h, lib/stat-time.h, lib/stdio-impl.h, lib/stdio.in.h:
* lib/stdlib.in.h, lib/sys_stat.in.h, lib/sys_types.in.h:
* lib/timespec.h, lib/unistd.in.h, lib/utimens.c, m4/c-strtod.m4:
* m4/gnulib-common.m4, m4/inttypes.m4, m4/lstat.m4, m4/nocrash.m4:
* m4/pselect.m4, m4/readlink.m4, m4/stdio_h.m4, m4/symlink.m4:
* m4/unistd_h.m4, m4/utimens.m4:
Copy from Gnulib.
* lib/gnulib.mk.in, m4/gnulib-comp.m4: Regenerate.
55 lines
2 KiB
Text
55 lines
2 KiB
Text
# serial 8
|
|
# See if we need to provide symlink replacement.
|
|
|
|
dnl Copyright (C) 2009-2018 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.
|
|
|
|
# Written by Eric Blake.
|
|
|
|
AC_DEFUN([gl_FUNC_SYMLINK],
|
|
[
|
|
AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
|
|
AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
|
|
AC_CHECK_FUNCS_ONCE([symlink])
|
|
dnl The best we can do on mingw is provide a dummy that always fails, so
|
|
dnl that compilation can proceed with fewer ifdefs. On FreeBSD 7.2, AIX 7.1,
|
|
dnl and Solaris 9, we want to fix a bug with trailing slash handling.
|
|
if test $ac_cv_func_symlink = no; then
|
|
HAVE_SYMLINK=0
|
|
else
|
|
AC_CACHE_CHECK([whether symlink handles trailing slash correctly],
|
|
[gl_cv_func_symlink_works],
|
|
[AC_RUN_IFELSE(
|
|
[AC_LANG_PROGRAM(
|
|
[[#include <unistd.h>
|
|
]],
|
|
[[int result = 0;
|
|
if (!symlink ("a", "conftest.link/"))
|
|
result |= 1;
|
|
if (symlink ("conftest.f", "conftest.lnk2"))
|
|
result |= 2;
|
|
else if (!symlink ("a", "conftest.lnk2/"))
|
|
result |= 4;
|
|
return result;
|
|
]])],
|
|
[gl_cv_func_symlink_works=yes], [gl_cv_func_symlink_works=no],
|
|
[case "$host_os" in
|
|
# Guess yes on Linux systems.
|
|
linux-* | linux) gl_cv_func_symlink_works="guessing yes" ;;
|
|
# Guess yes on glibc systems.
|
|
*-gnu* | gnu*) gl_cv_func_symlink_works="guessing yes" ;;
|
|
# If we don't know, assume the worst.
|
|
*) gl_cv_func_symlink_works="guessing no" ;;
|
|
esac
|
|
])
|
|
rm -f conftest.f conftest.link conftest.lnk2])
|
|
case "$gl_cv_func_symlink_works" in
|
|
*yes) ;;
|
|
*)
|
|
REPLACE_SYMLINK=1
|
|
;;
|
|
esac
|
|
fi
|
|
])
|