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-rw-r--r--m4/langinfo_h.m47
1 files changed, 6 insertions, 1 deletions
diff --git a/m4/langinfo_h.m4 b/m4/langinfo_h.m4
index 46be299ef3..a4c5409dd0 100644
--- a/m4/langinfo_h.m4
+++ b/m4/langinfo_h.m4
@@ -1,4 +1,4 @@
-# langinfo_h.m4 serial 2
+# langinfo_h.m4 serial 3
dnl Copyright (C) 2009, 2010 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -51,6 +51,11 @@ int a = ERA;
AC_SUBST([HAVE_LANGINFO_H])
AC_SUBST([HAVE_LANGINFO_CODESET])
AC_SUBST([HAVE_LANGINFO_ERA])
+
+ dnl Check for declarations of anything we want to poison if the
+ dnl corresponding gnulib module is not in use.
+ gl_WARN_ON_USE_PREPARE([[#include <langinfo.h>
+ ]], [nl_langinfo])
])
AC_DEFUN([gl_LANGINFO_MODULE_INDICATOR],