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-rw-r--r--m4/pathmax.m435
1 files changed, 32 insertions, 3 deletions
diff --git a/m4/pathmax.m4 b/m4/pathmax.m4
index 17b3d64..e11bf57 100644
--- a/m4/pathmax.m4
+++ b/m4/pathmax.m4
@@ -1,5 +1,5 @@
-# pathmax.m4 serial 8
-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,
@@ -8,6 +8,35 @@ dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_PATHMAX],
[
dnl Prerequisites of lib/pathmax.h.
- AC_CHECK_FUNCS_ONCE([pathconf])
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])
+])