pathmax: PATH_MAX: use pathconf only when available

[gnulib.git] / m4 / pathmax.m4

diff --git a/m4/pathmax.m4 b/m4/pathmax.m4
index e88fdb4..4651801 100644 (file)
--- a/m4/pathmax.m4
+++ b/m4/pathmax.m4
@@ -1,4 +1,4 @@
-# pathmax.m4 serial 7
+# pathmax.m4 serial 8
 dnl Copyright (C) 2002, 2003, 2005, 2006, 2009 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -7,5 +7,6 @@ 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])
 ])