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-rw-r--r--m4/posixver.m43
1 files changed, 2 insertions, 1 deletions
diff --git a/m4/posixver.m4 b/m4/posixver.m4
index b0f18d444..1fb8772f1 100644
--- a/m4/posixver.m4
+++ b/m4/posixver.m4
@@ -1,4 +1,4 @@
-# posixver.m4 serial 3
+# posixver.m4 serial 4
dnl Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
dnl This file is free software, distributed under the terms of the GNU
dnl General Public License. As a special exception to the GNU General
@@ -9,6 +9,7 @@ dnl the same distribution terms as the rest of that program.
AC_DEFUN([gl_POSIXVER],
[
AC_CHECK_HEADERS_ONCE(unistd.h)
+ AC_REQUIRE([gl_DEFAULT_POSIX2_VERSION])
])
# Set the default level of POSIX conformance at configure-time.