--- /var/tmp/portage/sys-devel/m4-1.4.16/work/m4-1.4.16/lib/stdio.in.h	2011-03-01 17:39:29.000000000 +0100
+++ /var/tmp/portage/sys-devel/m4-1.4.16/work/m4-1.4.16/lib/stdio.in.h.new	2012-07-05 22:35:32.348982786 +0200
@@ -162,7 +162,9 @@
    so any use of gets warrants an unconditional warning.  Assume it is
    always declared, since it is required by C89.  */
 #undef gets
+#if HAVE_RAW_DECL_GETS
 _GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
+#endif
 
 #if @GNULIB_FOPEN@
 # if @REPLACE_FOPEN@