--- /dev/null
+# serial 3
+# See if we need to provide symlink replacement.
+
+dnl Copyright (C) 2009, 2010 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_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 $ac_cv_func_symlink = no; then
+ HAVE_SYMLINK=0
+ AC_LIBOBJ([symlink])
+ else
+ AC_CACHE_CHECK([whether symlink handles trailing slash correctly],
+ [gl_cv_func_symlink_works],
+ [AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <unistd.h>
+]], [[if (!symlink ("a", "conftest.link/")) return 1;
+ if (symlink ("conftest.f", "conftest.lnk2")) return 2;
+ if (!symlink ("a", "conftest.lnk2/")) return 3;]])],
+ [gl_cv_func_symlink_works=yes], [gl_cv_func_symlink_works=no],
+ [gl_cv_func_symlink_works="guessing no"])
+ rm -f conftest.f conftest.link conftest.lnk2])
+ if test "$gl_cv_func_symlink_works" != yes; then
+ REPLACE_SYMLINK=1
+ AC_LIBOBJ([symlink])
+ fi
+ fi
+])