Allow builds with glibc 2.20.
Based on a patch by Peter Hutterer <peter.hutterer@who-t.net>.
See <https://raw.githubusercontent.com/openembedded/oe-core/master/meta/recipes-graphics/xorg-driver/xf86-input-synaptics/always_include_xorg_server.h.patch>.

--- xf86-video-openchrome-0.3.3/src/via_3d.h.~1~	2013-05-23 11:11:28.000000000 -0400
+++ xf86-video-openchrome-0.3.3/src/via_3d.h	2014-12-19 01:17:04.000953259 -0500
@@ -24,6 +24,8 @@
 #ifndef VIA_3D_H
 #define VIA_3D_H
 
+#include <xorg-server.h>
+
 #include "xf86.h"
 #include "via_dmabuffer.h"
 
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<tr><td><span title='2021-12-13 17:48:25 +0100'>2021-12-13</span></td><td><a href='/guix/commit/gnu/packages/swig.scm?id=8394619baceb118df92e355377fd543bb1aa501a'>gnu: Simplify package inputs.</a></td><td>Ludovic Courtès</td></tr>
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<tr><td><span title='2020-03-18 19:23:45 +0100'>2020-03-18</span></td><td><a href='/guix/commit/gnu/packages/swig.scm?id=e607cc3a479b39d11e9d2b5979b9719e133008a0'>gnu: swig: Use guile-3.0 instead of guile-2.2.</a></td><td>Arun Isaac</td></tr>
<tr><td><span title='2019-12-12 03:44:53 +0200'>2019-12-12</span></td><td><a href='/guix/commit/gnu/packages/swig.scm?id=d45720d8b456e82380601d77e25bd05c6e0dc36a'>gnu: swig: Build with guile-2.2.</a></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2019-12-05 17:59:02 +0100'>2019-12-05</span></td><td><a href='/guix/commit/gnu/packages/swig.scm?id=8b2c4eb5020eff458690f600351b56ed97465db1'>gnu: swig: Update to 4.0.1.</a></td><td>Marius Bakke</td></tr>
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<tr><td><span title='2019-12-01 10:31:28 +0200'>2019-12-01</span></td><td><a href='/guix/commit/gnu/packages/swig.scm?id=7ed91f8c8de0de7df992c1534a1c86219ab5ba84'>gnu: swig: Clean up inputs.</a></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2019-11-15 17:32:26 +0100'>2019-11-15</span></td><td><a href='/guix/commit/gnu/packages/swig.scm?id=457e1166981db9f7593340f0fc2f4d228cf11361'>gnu: swig: Fix cross-compilation.</a></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2019-02-09 21:53:41 +0100'>2019-02-09</span></td><td><a href='/guix/commit/gnu/packages/swig.scm?id=a555c3f4386a4cbb2abae52768dbca408a8ad9da'>gnu: swig: Fix FTBFS with GCC &gt;= 6.</a></td><td>Marius Bakke</td></tr>
<tr><td><span title='2018-10-18 19:13:13 +0200'>2018-10-18</span></td><td><a href='/guix/commit/gnu/packages/swig.scm?id=e8ef3cc4d62d573db5e7338a0342ef20df5f8b4d'>gnu: swig: Fix build on i686.</a></td><td>Marius Bakke</td></tr>
<tr><td><span title='2018-05-30 02:18:26 -0400'>2018-05-30</span></td><td><a href='/guix/commit/gnu/packages/swig.scm?id=a21bcd70792af2a618237cae75b51194482c24ea'>Revert "gnu: swig: Patch for Octave 4.4."</a></td><td>Mark H Weaver</td></tr>
<tr><td><span title='2018-05-29 18:20:38 -0400'>2018-05-29</span></td><td><a href='/guix/commit/gnu/packages/swig.scm?id=3771000f893d4b53e302f5bca07afeba69e76cd4'>gnu: swig: Patch for Octave 4.4.</a></td><td>Kei Kebreau</td></tr>