Import upstream version 1.27

[debian/tar] / m4 / chdir-long.m4

diff --git a/m4/chdir-long.m4 b/m4/chdir-long.m4
index 27c61d25493eca37a3c17dce292f435151ca8a18..9c498a62160472bae50b019fd548e39da7d68a07 100644 (file)
--- a/m4/chdir-long.m4
+++ b/m4/chdir-long.m4
@@ -1,4 +1,4 @@
-#serial 11
+#serial 15
 
 # Use Gnulib's robust chdir function.
 # It can handle arbitrarily long directory names, which means
@@ -6,7 +6,7 @@
 # never fails with ENAMETOOLONG.
 # Arrange to compile chdir-long.c only on systems that define PATH_MAX.
 
-dnl Copyright (C) 2004-2007, 2009-2011 Free Software Foundation, Inc.
+dnl Copyright (C) 2004-2007, 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.
@@ -15,25 +15,16 @@ dnl with or without modifications, as long as this notice is preserved.
 
 AC_DEFUN([gl_FUNC_CHDIR_LONG],
 [
+  AC_REQUIRE([gl_PATHMAX_SNIPPET_PREREQ])
   AC_CACHE_CHECK([whether this system has an arbitrary file name length limit],
     gl_cv_have_arbitrary_file_name_length_limit,
     [AC_EGREP_CPP([have_arbitrary_file_name_length_limit],
-                  [#include <unistd.h>
-#include <limits.h>
-#if defined PATH_MAX || defined MAXPATHLEN
+                  gl_PATHMAX_SNIPPET[
+#ifdef PATH_MAX
 have_arbitrary_file_name_length_limit
 #endif],
     gl_cv_have_arbitrary_file_name_length_limit=yes,
     gl_cv_have_arbitrary_file_name_length_limit=no)])
-
-  if test $gl_cv_have_arbitrary_file_name_length_limit = yes; then
-    AC_LIBOBJ([chdir-long])
-    gl_PREREQ_CHDIR_LONG
-  fi
 ])
 
-AC_DEFUN([gl_PREREQ_CHDIR_LONG],
-[
-  AC_REQUIRE([AC_C_INLINE])
-  :
-])
+AC_DEFUN([gl_PREREQ_CHDIR_LONG], [:])