CSSC uses a gets in a couple of places.  For security reasons, modern gnulib
does not allow this.  This patch allows it again.
--- CSSC-1.3.0/gl/lib/stdio.in.h	2010-05-15 00:15:35.000000000 +0200
+++ CSSC-1.3.0/gl/lib/stdio.in.h	2014-02-03 21:27:10.000000000 +0100
@@ -135,12 +135,6 @@
                  "use gnulib module fflush for portable POSIX compliance");
 #endif
 
-/* It is very rare that the developer ever has full control of stdin,
-   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@
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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<tr><td><span title='2015-09-22 13:04:44 +0300'>2015-09-22</span></td><td><a href='/guix/commit/emacs/guix-prettify.el?id=67ee7c9576ac9079a0fc3b17918824d1181327fd'>emacs: Improve 'guix-prettify-regexp'.</a><span class='msg-avail'>...</span></td><td>Alex Kost</td></tr>
<tr><td><span title='2015-08-30 18:26:01 +0300'>2015-08-30</span></td><td><a href='/guix/commit/emacs/guix-prettify.el?id=c10521e97679c35a40926084e049445cc5053254'>emacs: Add and use 'guix-while-search'.</a><span class='msg-avail'>...</span></td><td>Alex Kost</td></tr>
<tr><td><span title='2015-08-30 18:26:01 +0300'>2015-08-30</span></td><td><a href='/guix/commit/emacs/guix-prettify.el?id=935d079bb75c1144946ac9e9915a2278896a458d'>emacs: Add 'guix-prettify' to 'guix' custom group.</a><span class='msg-avail'>...</span></td><td>Alex Kost</td></tr>