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-rw-r--r--m4/symlink.m424
1 files changed, 16 insertions, 8 deletions
diff --git a/m4/symlink.m4 b/m4/symlink.m4
index 917d5f0..82ede2a 100644
--- a/m4/symlink.m4
+++ b/m4/symlink.m4
@@ -1,7 +1,7 @@
-# serial 4
+# serial 6
# See if we need to provide symlink replacement.
-dnl Copyright (C) 2009-2011 Free Software Foundation, Inc.
+dnl Copyright (C) 2009-2013 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.
@@ -11,13 +11,13 @@ dnl with or without modifications, as long as this notice is preserved.
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 $ac_cv_func_symlink = no; then
HAVE_SYMLINK=0
- AC_LIBOBJ([symlink])
else
AC_CACHE_CHECK([whether symlink handles trailing slash correctly],
[gl_cv_func_symlink_works],
@@ -35,11 +35,19 @@ AC_DEFUN([gl_FUNC_SYMLINK],
return result;
]])],
[gl_cv_func_symlink_works=yes], [gl_cv_func_symlink_works=no],
- [gl_cv_func_symlink_works="guessing no"])
+ [case "$host_os" in
+ # Guess yes on glibc systems.
+ *-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])
- if test "$gl_cv_func_symlink_works" != yes; then
- REPLACE_SYMLINK=1
- AC_LIBOBJ([symlink])
- fi
+ case "$gl_cv_func_symlink_works" in
+ *yes) ;;
+ *)
+ REPLACE_SYMLINK=1
+ ;;
+ esac
fi
])