This patch allows the 'asprintf' declaration to be visible, by
including <config.h>, which defines _GNU_SOURCE.


--- xmodmap-1.0.7/xmodmap.c	2013-11-25 23:25:25.000000000 +0100
+++ xmodmap-1.0.7/xmodmap.c	2013-11-25 23:25:27.000000000 +0100
@@ -26,6 +26,7 @@ from The Open Group.
 
 */
 
+#include <config.h>
 #include <X11/Xos.h>
 #include <X11/Xlib.h>
 #include <stdio.h>
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<tr><td><span title='2016-11-24 09:23:11 +0100'>2016-11-24</span></td><td><a href='/guix/commit/etc?id=332d7903f52c2bf3741b04ac2d01cd9018b70800'>Add system start-up files for "guix publish".</a><span class='msg-avail'>...</span></td><td>Hartmut Goebel</td></tr>
<tr><td><span title='2016-09-07 17:33:48 +0200'>2016-09-07</span></td><td><a href='/guix/commit/etc?id=f07f7d86145c10539709ca43cb0c201b6f935005'>bash completion: Complete subcommands and their options.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2016-09-07 16:22:25 +0200'>2016-09-07</span></td><td><a href='/guix/commit/etc?id=e9006d06a04e60db1ca78283b6c7e951d5a477fd'>bash completion: Redirect 'guix' stderr to /dev/null.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2016-09-07 16:08:20 +0200'>2016-09-07</span></td><td><a href='/guix/commit/etc?id=96dbc93089723cece1241e51c657f596adf6d3d5'>Add Zsh completion file.</a><span class='msg-avail'>...</span></td><td>Eric Le Bihan</td></tr>
<tr><td><span title='2016-07-18 06:56:29 +0200'>2016-07-18</span></td><td><a href='/guix/commit/etc?id=2517a7b3e2a37f6fa9f1e4cb5c42ef8e03f6acaa'>Set "GUIX_LOCPATH" in 'guix-daemon.service'.</a><span class='msg-avail'>...</span></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2016-04-25 23:27:09 +0200'>2016-04-25</span></td><td><a href='/guix/commit/etc?id=f489ce3c9343e3ba9927645d11fcb91bb69f0fa7'>Add "TasksMax=1024" in 'guix-daemon.service'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2015-11-26 23:21:09 +0100'>2015-11-26</span></td><td><a href='/guix/commit/etc?id=ad227484c3e1dc85488be76a23128e77ad0b33ff'>Add 'guix-daemon.conf' job for Upstart.</a><span class='msg-avail'>...</span></td><td>Mario Daniel Ruiz Saavedra</td></tr>
<tr><td><span title='2015-08-20 19:57:33 +0200'>2015-08-20</span></td><td><a href='/guix/commit/etc?id=4a9999871cc75f2d73d5dc83fbcad88bcaa5b921'>bash completion: Cache the list of subcommands and available packages.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2015-07-15 23:57:01 +0200'>2015-07-15</span></td><td><a href='/guix/commit/etc?id=d2825c96141c7b6844d9e04f982919c0509165e1'>Add 'guix-daemon.service' file for systemd.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2015-05-01 17:39:39 +0200'>2015-05-01</span></td><td><a href='/guix/commit/etc?id=868ef9aec79fac92efbe885120331310592fef98'>bash completion: Complete long options with no short variant.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2015-04-09 23:44:14 +0200'>2015-04-09</span></td><td><a href='/guix/commit/etc?id=ee3e157dec3512778502f20538c581f5e28d63fe'>Add Bash completion file.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>