X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fstrings_h.m4;h=26aa1f782ac1a1c775ca44277cbbfe6f03185491;hb=062cad2d07081f9a60adbb90fc1184a435a1a93f;hp=135c16c02127e9b91c046c6ef1c3db2ad6305267;hpb=b2e2010c7c902235b5efb5bd3c6529f61b093aa4;p=gnulib.git

diff --git a/m4/strings_h.m4 b/m4/strings_h.m4
index 135c16c02..26aa1f782 100644
--- a/m4/strings_h.m4
+++ b/m4/strings_h.m4
@@ -1,4 +1,5 @@
 # Configure a replacement for <string.h>.
+# serial 2
 
 # Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
@@ -16,6 +17,11 @@ AC_DEFUN([gl_HEADER_STRINGS_H_BODY],
 [
   AC_REQUIRE([gl_HEADER_STRINGS_H_DEFAULTS])
   gl_CHECK_NEXT_HEADERS([strings.h])
+
+  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 <strings.h>
+    ]], [strcasecmp strncasecmp])
 ])
 
 AC_DEFUN([gl_STRINGS_MODULE_INDICATOR],