X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fchdir-long.m4;h=170434924ab50c0d8d79580024a82edc92199895;hb=3eba51da3b0a9546c254ea0ebda03333bb90406c;hp=eef75d76777f7201ea79b97f5cd99bbacf54ddfd;hpb=d9203c96c70e64ae24a2f2d36e1ba80d79628dc5;p=gnulib.git

diff --git a/m4/chdir-long.m4 b/m4/chdir-long.m4
index eef75d767..170434924 100644
--- a/m4/chdir-long.m4
+++ b/m4/chdir-long.m4
@@ -1,4 +1,4 @@
-#serial 4
+#serial 7
 
 # 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 Free Software Foundation, Inc.
+dnl Copyright (C) 2004, 2005 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.
@@ -16,18 +16,18 @@ dnl with or without modifications, as long as this notice is preserved.
 AC_DEFUN([gl_FUNC_CHDIR_LONG],
 [
   AC_LIBSOURCES([chdir-long.c, chdir-long.h])
-  AC_CACHE_CHECK([whether this system has a definition of PATH_MAX],
-    gl_have_path_max_definition,
-    [AC_EGREP_CPP([have_path_max_definition],
+  AC_CACHE_CHECK([whether this system has an arbitrary file name length limit],
+    gl_have_arbitrary_file_name_length_limit,
+    [AC_EGREP_CPP([have_arbitrary_file_name_length_limit],
                   [#include <unistd.h>
 #include <limits.h>
-#ifdef PATH_MAX
-have_path_max_definition
+#if defined PATH_MAX || defined MAXPATHLEN
+have_arbitrary_file_name_length_limit
 #endif],
-    gl_have_path_max_definition=yes,
-    gl_have_path_max_definition=no)])
+    gl_have_arbitrary_file_name_length_limit=yes,
+    gl_have_arbitrary_file_name_length_limit=no)])
 
-  if test $gl_have_path_max_definition; then
+  if test $gl_have_arbitrary_file_name_length_limit = yes; then
     AC_LIBOBJ([chdir-long])
     gl_PREREQ_CHDIR_LONG
   fi
@@ -38,4 +38,5 @@ AC_DEFUN([gl_PREREQ_CHDIR_LONG],
   AM_STDBOOL_H
   gl_FUNC_MEMPCPY
   gl_FUNC_OPENAT
+  gl_FUNC_MEMRCHR
 ])