pathmax: Leave PATH_MAX undefined on the Hurd, and a constant otherwise. * lib/pathmax.h (PATH_MAX): Leave it undefined on GNU/Hurd. * lib/chdir-long.h: Include pathmax.h. * lib/clean-temp.c (PATH_MAX): Remove code that is done by pathmax.h. * lib/getcwd.c: Include pathmax.h instead of <limits.h>. (PATH_MAX): Remove code that is done by pathmax.h. * lib/canonicalize.c (PATH_MAX): Provide a fallback value. * lib/tmpfile.c: Add a comment. * m4/pathmax.m4 (gl_PATHMAX): Don't test for pathconf. * modules/chdir-long (Depends-on): Add pathmax. * modules/getcwd (Depends-on): Add pathmax. * tests/test-getcwd.c (test_abort_bug): Avoid syntax error when PATH_MAX is not defined. * doc/posix-headers/limits.texi: Mention the pathmax module. * NEWS: Mention the change.

--- a/NEWS	Wed Aug 03 01:04:40 2011 +0200
+++ b/NEWS	Fri Aug 05 03:01:01 2011 +0200
@@ -12,6 +12,11 @@
 
 Date        Modules         Changes
 
+2011-08-04  pathmax         The header file "pathmax.h" no longer defines
+                            PATH_MAX on GNU/Hurd. Please use one of the methods
+                            listed in pathmax.h to ensure your package is
+                            portable to GNU/Hurd.
+
 2011-07-24  close           This module no longer pulls in the 'fclose' module.
                             If your code creates a socket descriptor using
                             socket() or accept(), then a FILE stream referring