X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=m4%2Fgetcwd-path-max.m4;h=0b03b66aba611a60086742cbb5bc99c4cbf4c574;hb=43593319b31e6b0175b8eec4433bac744959822d;hp=6be4b2ce6dce9f91a0640d34f7fe64369a580dfe;hpb=b5bfe10b5a7adcb72dad1139c6470c92354952c8;p=gnulib.git

diff --git a/m4/getcwd-path-max.m4 b/m4/getcwd-path-max.m4
index 6be4b2ce6..0b03b66ab 100644
--- a/m4/getcwd-path-max.m4
+++ b/m4/getcwd-path-max.m4
@@ -1,4 +1,4 @@
-# serial 18
+# serial 19
 # Check for several getcwd bugs with long file names.
 # If so, arrange to compile the wrapper function.
 
@@ -6,7 +6,7 @@
 # I've heard that this is due to a Linux kernel bug, and that it has
 # been fixed between 2.4.21-pre3 and 2.4.21-pre4.
 
-# Copyright (C) 2003-2007, 2009-2011 Free Software Foundation, Inc.
+# Copyright (C) 2003-2007, 2009-2013 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
@@ -16,6 +16,7 @@
 AC_DEFUN([gl_FUNC_GETCWD_PATH_MAX],
 [
   AC_CHECK_DECLS_ONCE([getcwd])
+  AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
   AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
   AC_CHECK_HEADERS_ONCE([unistd.h])
   AC_REQUIRE([gl_PATHMAX_SNIPPET_PREREQ])
@@ -51,6 +52,9 @@ AC_DEFUN([gl_FUNC_GETCWD_PATH_MAX],
 # define is_ENAMETOOLONG(x) 0
 #endif
 
+/* Use the getcwd function, not any macro.  */
+#undef getcwd
+
 /* Don't get link errors because mkdir is redefined to rpl_mkdir.  */
 #undef mkdir
 
@@ -124,7 +128,12 @@ main ()
               fail = 11;
               break;
             }
-          if (c || ! (errno == ERANGE || is_ENAMETOOLONG (errno)))
+          if (c)
+            {
+              fail = 31;
+              break;
+            }
+          if (! (errno == ERANGE || is_ENAMETOOLONG (errno)))
             {
               fail = 21;
               break;
@@ -184,14 +193,12 @@ main ()
     [gl_cv_func_getcwd_path_max=yes],
     [case $? in
      10|11|12) gl_cv_func_getcwd_path_max='no, but it is partly working';;
+     31) gl_cv_func_getcwd_path_max='no, it has the AIX bug';;
      *) gl_cv_func_getcwd_path_max=no;;
      esac],
-    [gl_cv_func_getcwd_path_max=no])
+    [case "$host_os" in
+       aix*) gl_cv_func_getcwd_path_max='no, it has the AIX bug';;
+       *) gl_cv_func_getcwd_path_max=no;;
+     esac])
   ])
-  case $gl_cv_func_getcwd_path_max in
-  no,*)
-    AC_DEFINE([HAVE_PARTLY_WORKING_GETCWD], [1],
-      [Define to 1 if getcwd works, except it sometimes fails when it shouldn't,
-       setting errno to ERANGE, ENAMETOOLONG, or ENOENT.]);;
-  esac
 ])