>From ae8fa73d763d0bd833d9f02cb48c5d6a7f9c0039 Mon Sep 17 00:00:00 2001
From: Paul Eggert <address@hidden>
Date: Tue, 21 Apr 2015 00:22:00 -0700
Subject: [PATCH] lstat: fix cross-compilation 'ln -s' problem

* m4/lstat.m4 (gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK):
Have the test program call 'symlink' rather than a separate
script run 'ln -s'; this is more likely to work in
cross-compilation environments.  Reported by Pavel Fedin in:
http://lists.gnu.org/archive/html/bug-gnulib/2015-04/msg00060.html
---
 ChangeLog   |  9 +++++++++
 m4/lstat.m4 | 48 +++++++++++++++++++++++-------------------------
 2 files changed, 32 insertions(+), 25 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 4417587..2d3931a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2015-04-21  Paul Eggert  <address@hidden>
+
+	lstat: fix cross-compilation 'ln -s' problem
+	* m4/lstat.m4 (gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK):
+	Have the test program call 'symlink' rather than a separate
+	script run 'ln -s'; this is more likely to work in
+	cross-compilation environments.  Reported by Pavel Fedin in:
+	http://lists.gnu.org/archive/html/bug-gnulib/2015-04/msg00060.html
+
 2015-04-16  Ludovic Courtès  <address@hidden>
 
 	gendocs.sh: default to a common CSS style sheet for HTML output
diff --git a/m4/lstat.m4 b/m4/lstat.m4
index f6c7dd1..adf752c 100644
--- a/m4/lstat.m4
+++ b/m4/lstat.m4
@@ -1,4 +1,4 @@
-# serial 26
+# serial 27
 
 # Copyright (C) 1997-2001, 2003-2015 Free Software Foundation, Inc.
 #
@@ -37,30 +37,28 @@ AC_DEFUN([gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK],
     [gl_cv_func_lstat_dereferences_slashed_symlink],
     [rm -f conftest.sym conftest.file
      echo >conftest.file
-     if test "$as_ln_s" = "ln -s" && ln -s conftest.file conftest.sym; then
-       AC_RUN_IFELSE(
-         [AC_LANG_PROGRAM(
-            [AC_INCLUDES_DEFAULT],
-            [[struct stat sbuf;
-              /* Linux will dereference the symlink and fail, as required by
-                 POSIX.  That is better in the sense that it means we will not
-                 have to compile and use the lstat wrapper.  */
-              return lstat ("conftest.sym/", &sbuf) == 0;
-            ]])],
-         [gl_cv_func_lstat_dereferences_slashed_symlink=yes],
-         [gl_cv_func_lstat_dereferences_slashed_symlink=no],
-         [case "$host_os" in
-                    # Guess yes on glibc systems.
-            *-gnu*) gl_cv_func_lstat_dereferences_slashed_symlink="guessing yes" ;;
-                    # If we don't know, assume the worst.
-            *)      gl_cv_func_lstat_dereferences_slashed_symlink="guessing no" ;;
-          esac
-         ])
-     else
-       # If the 'ln -s' command failed, then we probably don't even
-       # have an lstat function.
-       gl_cv_func_lstat_dereferences_slashed_symlink="guessing no"
-     fi
+     AC_RUN_IFELSE(
+       [AC_LANG_PROGRAM(
+          [AC_INCLUDES_DEFAULT],
+          [[struct stat sbuf;
+            if (symlink ("conftest.file", "conftest.sym") != 0)
+              return 1;
+            /* Linux will dereference the symlink and fail, as required by
+               POSIX.  That is better in the sense that it means we will not
+               have to compile and use the lstat wrapper.  */
+            return lstat ("conftest.sym/", &sbuf) == 0;
+          ]])],
+       [gl_cv_func_lstat_dereferences_slashed_symlink=yes],
+       [gl_cv_func_lstat_dereferences_slashed_symlink=no],
+       [case "$host_os" in
+          *-gnu*)
+            # Guess yes on glibc systems.
+            gl_cv_func_lstat_dereferences_slashed_symlink="guessing yes" ;;
+          *)
+            # If we don't know, assume the worst.
+            gl_cv_func_lstat_dereferences_slashed_symlink="guessing no" ;;
+        esac
+       ])
      rm -f conftest.sym conftest.file
     ])
   case "$gl_cv_func_lstat_dereferences_slashed_symlink" in
-- 
2.1.0