See https://bugs.freedesktop.org/show_bug.cgi?id=47792;
should become obsolete with the next release.

diff -u luit-1.1.1.orig/sys.c luit-1.1.1/sys.c
--- luit-1.1.1.orig/sys.c	2012-03-23 05:23:07.000000000 +0100
+++ luit-1.1.1/sys.c	2013-11-27 22:45:53.000000000 +0100
@@ -20,6 +20,8 @@
 THE SOFTWARE.
 */
 
+#define _XOPEN_SOURCE 600
+
 #ifdef HAVE_CONFIG_H
 # include "config.h"
 #endif
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<tr><td><span title='2024-04-18 10:43:06 -0400'>2024-04-18</span></td><td><a href='/guix/commit/gnu/system/examples/lightweight-desktop.tmpl?id=65e8472a4b6fc6f66871ba0dad518b7d4c63595e'>system: Remove nss-certs from OS templates, adjust doc.</a><span class='msg-avail'>...<span class='msg-tooltip'>This is a follow-up to commit 86afaadb51 ("system: Add 'nss-certs' to
%base-packages-networking.")

* doc/guix-cookbook.texi (Running Guix on a Linode Server): Remove nss-certs
from operating system's packages field.
(Running Guix on a Kimsufi Server): Likewise.
* doc/guix.texi (Using the Configuration System): Likewise.
(X.509 Certificates): Adjust to mention nss-certs *is* part of %base-packages.
* gnu/installer/services.scm (%system-services): Remove recommendation to
install nss-certs.
* gnu/system/examples/bare-bones.tmpl (host-name): Remove obsolete comments.
* gnu/system/examples/desktop.tmpl (packages): Remove nss-certs.
* gnu/system/examples/lightweight-desktop.tmpl (packages): Likewise.
* gnu/system/examples/plasma.tmpl (packages): Likewise.
* gnu/system/examples/raspberry-pi-64-nfs-root.tmpl (packages): Likewise.
* gnu/system/examples/raspberry-pi-64.tmpl (packages): Likewise.
* gnu/system/examples/vm-image.tmpl (packages): Likewise.
* gnu/system/images/orangepi-r1-plus-lts-rk3328.scm (packages): Likewise.
* gnu/system/images/pine64.scm (packages): Likewise.
* gnu/system/install.scm (installation-os) [packages]: Likewise.

Change-Id: If09123a69b987178bcb0aab61c4570c14fc1286f
</span></span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2022-12-16 23:42:17 -0500'>2022-12-16</span></td><td><a href='/guix/commit/gnu/system/examples/lightweight-desktop.tmpl?id=491bddfa276cc9775adf325c07e5f82638f330e7'>system: examples: Add mode prop line.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/system/examples/asus-c201.tmpl: Add a mode prop line.
* gnu/system/examples/bare-bones.tmpl: Likewise.
* gnu/system/examples/beaglebone-black.tmpl: Likewise.
* gnu/system/examples/desktop.tmpl: Likewise.
* gnu/system/examples/docker-image.tmpl: Likewise.
* gnu/system/examples/lightweight-desktop.tmpl: Likewise.
* gnu/system/examples/raspberry-pi-64-nfs-root.tmpl: Likewise.
* gnu/system/examples/raspberry-pi-64.tmpl: Likewise.
* gnu/system/examples/vm-image.tmpl: Likewise.
</span></span></td><td>Maxim Cournoyer</td></tr>