Fix building of GPM with glibc 2.26:

https://bugs.gentoo.org/629774

Patches copied from Gentoo:

https://gitweb.gentoo.org/repo/gentoo.git/tree/sys-libs/gpm/files/gpm-1.20.7-glibc-2.26.patch?id=1618968c56caf7f8c08823908d88dc49bb8f7649
https://gitweb.gentoo.org/repo/gentoo.git/tree/sys-libs/gpm/files/gpm-1.20.7-sysmacros.patch?id=1618968c56caf7f8c08823908d88dc49bb8f7649

--- a/src/prog/gpm-root.y	2012-10-26 17:21:38.000000000 -0400
+++ b/src/prog/gpm-root.y	2017-09-07 20:39:51.933264063 -0400
@@ -1197,7 +1197,7 @@
    /* reap your zombies */
    childaction.sa_handler=reap_children;
 #if defined(__GLIBC__)
-   __sigemptyset(&childaction.sa_mask);
+   sigemptyset(&childaction.sa_mask);
 #else /* __GLIBC__ */
    childaction.sa_mask=0;
 #endif /* __GLIBC__ */
From b350aee4ea5785a75cb6ad770f6b768c506ebb70 Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Mon, 14 Mar 2016 15:39:54 -0400
Subject: [PATCH] fix building w/newer glibc

Linux C libraries are looking to disentangle sysmacros.h from the
sys/types.h include, so make sure we pull in the header when it is
found.
---
 src/daemon/open_console.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/daemon/open_console.c b/src/daemon/open_console.c
index 4d6c0af..6dd43e6 100644
--- a/src/daemon/open_console.c
+++ b/src/daemon/open_console.c
@@ -24,6 +24,10 @@
 #include <sys/types.h>              /* major()           */
 #include <sys/ioctl.h>              /* ioctl             */
 
+#ifdef HAVE_SYS_SYSMACROS_H
+#include <sys/sysmacros.h>          /* major() w/newer glibc */
+#endif
+
 /* Linux specific (to be outsourced in gpm2 */
 #include <linux/serial.h>           /* for serial console check */
 #include <asm/ioctls.h>            /* for serial console check */
-- 
2.6.2

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<div class='path'>path: <a href='/guix/log/?id=c6c0d5a22c2ee3d7164dab0129b2e4852a4ae76c'>root</a>/<a href='/guix/log/gnu?id=c6c0d5a22c2ee3d7164dab0129b2e4852a4ae76c'>gnu</a>/<a href='/guix/log/gnu/tests?id=c6c0d5a22c2ee3d7164dab0129b2e4852a4ae76c'>tests</a>/<a href='/guix/log/gnu/tests/networking.scm?id=c6c0d5a22c2ee3d7164dab0129b2e4852a4ae76c'>networking.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/tests/networking.scm?id=c6c0d5a22c2ee3d7164dab0129b2e4852a4ae76c&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-07-11 23:36:32 +0200'>2020-07-11</span></td><td><a href='/guix/commit/gnu/tests/networking.scm?id=54461153dac6096a018e35a1d959e45b2c9dbb82'>tests: networking: Use 'net.ifnames=0' for the Open vSwitch test.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2020-04-10 20:20:11 +0200'>2020-04-10</span></td><td><a href='/guix/commit/gnu/tests/networking.scm?id=6720616daaf711314827c157a660339990e5cb07'>tests: openvswitch: Use the absolute file name of ovs-vsctl.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2020-03-16 14:05:52 +0100'>2020-03-16</span></td><td><a href='/guix/commit/gnu/tests/networking.scm?id=ef0f5ff2a74e5e4dc49dfdd0ba6509a91281ddd5'>tests: dhcpd: Adjust network interface name.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-03-31 21:26:15 +0200'>2019-03-31</span></td><td><a href='/guix/commit/gnu/tests/networking.scm?id=e73ded3c71527412944bb9a97916a096742f695d'>services: Open vSwitch: Provide a default configuration.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>