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hack until gzip pulls a newer gnulib version
From 66712c23388e93e5c518ebc8515140fa0c807348 Mon Sep 17 00:00:00 2001
From: Eric Blake <eblake@redhat.com>
Date: Thu, 29 Mar 2012 13:30:41 -0600
Subject: [PATCH] stdio: don't assume gets any more
Gnulib intentionally does not have a gets module, and now that C11
and glibc have dropped it, we should be more proactive about warning
any user on a platform that still has a declaration of this dangerous
interface.
--- a/grub-core/gnulib/stdio.in.h
+++ b/grub-core/gnulib/stdio.in.h
@@ -125,7 +125,6 @@
so any use of gets warrants an unconditional warning. Assume it is
always declared, since it is required by C89. */
#undef gets
-_GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
#if @GNULIB_FOPEN@
# if @REPLACE_FOPEN@
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