+2011-08-04 Bruno Haible <bruno@clisp.org>
+
+ 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.
+