X-Git-Url: https://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fpathmax.m4;h=e11bf57a089bd8aa86ace96e75df9a7bf757193b;hb=da8054d48dc22e1c051db54049e005d51a006e69;hp=0856722c391f5efa68618b3dafbf0f10bab4b309;hpb=6310fc6d3e3f086e825cbd6f53950fbdc1ac7b42;p=gnulib.git

diff --git a/m4/pathmax.m4 b/m4/pathmax.m4
index 0856722c3..e11bf57a0 100644
--- a/m4/pathmax.m4
+++ b/m4/pathmax.m4
@@ -1,5 +1,5 @@
-# pathmax.m4 serial 9
-dnl Copyright (C) 2002-2003, 2005-2006, 2009-2011 Free Software Foundation,
+# pathmax.m4 serial 10
+dnl Copyright (C) 2002-2003, 2005-2006, 2009-2013 Free Software Foundation,
 dnl Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -10,3 +10,33 @@ AC_DEFUN([gl_PATHMAX],
   dnl Prerequisites of lib/pathmax.h.
   AC_CHECK_HEADERS_ONCE([sys/param.h])
 ])
+
+# Expands to a piece of C program that defines PATH_MAX in the same way as
+# "pathmax.h" will do.
+AC_DEFUN([gl_PATHMAX_SNIPPET], [[
+/* Arrange to define PATH_MAX, like "pathmax.h" does. */
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+#include <limits.h>
+#if defined HAVE_SYS_PARAM_H && !defined PATH_MAX && !defined MAXPATHLEN
+# include <sys/param.h>
+#endif
+#if !defined PATH_MAX && defined MAXPATHLEN
+# define PATH_MAX MAXPATHLEN
+#endif
+#ifdef __hpux
+# undef PATH_MAX
+# define PATH_MAX 1024
+#endif
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+# undef PATH_MAX
+# define PATH_MAX 260
+#endif
+]])
+
+# Prerequisites of gl_PATHMAX_SNIPPET.
+AC_DEFUN([gl_PATHMAX_SNIPPET_PREREQ],
+[
+  AC_CHECK_HEADERS_ONCE([unistd.h sys/param.h])
+])