Workaround for PATH_MAX usage on the Hurd.

Taken from https://salsa.debian.org/debian/screen/-/blob/master/debian/patches/61-default-PATH_MAX-if-undefined-for-hurd.patch

Description: Set PATH_MAX to 4096 if undefined
 Fixes FTBFS since 4.4.0 on GNU/Hurd. Updated to add one more occurrence for 4.5.0.
Author: Axel Beckert <abe@debian.org>
Bug: https://savannah.gnu.org/bugs/?50089
Updated: 2017-01-18
Updated: 2024-08-30 Update for Screen 5.0.0

diff --git a/screen.h b/screen.h
index 308c365..e71bd7f 100644
--- a/screen.h
+++ b/screen.h
@@ -63,6 +63,22 @@ struct mode {
 #endif
 };

+/*
+ * Define PATH_MAX to 4096 if it's not defined, like on GNU/Hurd
+ */
+
+#ifndef PATH_MAX
+#define PATH_MAX 4096
+#endif
+
+/*
+ * similarly for MAXPATHLEN
+ */
+
+#ifndef MAXPATHLEN
+#define MAXPATHLEN PATH_MAX
+#endif
+

 #include "ansi.h"
 #include "image.h"
nput type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>Wojtek's customized Guix</td><td class='sub right'></td></tr></table>
<table class='tabs'><tr><td>
<a href='/guix/about/'>about</a><a href='/guix/'>summary</a><a href='/guix/refs/?id=4a0ffae5900bb542017f244c11b7874612714360'>refs</a><a class='active' href='/guix/log/gnu/packages/irc.scm'>log</a><a href='/guix/tree/gnu/packages/irc.scm?id=4a0ffae5900bb542017f244c11b7874612714360'>tree</a><a href='/guix/commit/gnu/packages/irc.scm?id=4a0ffae5900bb542017f244c11b7874612714360'>commit</a><a href='/guix/diff/gnu/packages/irc.scm?id=4a0ffae5900bb542017f244c11b7874612714360'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/packages/irc.scm'>
<input type='hidden' name='id' value='4a0ffae5900bb542017f244c11b7874612714360'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=4a0ffae5900bb542017f244c11b7874612714360'>root</a>/<a href='/guix/log/gnu?id=4a0ffae5900bb542017f244c11b7874612714360'>gnu</a>/<a href='/guix/log/gnu/packages?id=4a0ffae5900bb542017f244c11b7874612714360'>packages</a>/<a href='/guix/log/gnu/packages/irc.scm?id=4a0ffae5900bb542017f244c11b7874612714360'>irc.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/packages/irc.scm?id=4a0ffae5900bb542017f244c11b7874612714360&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2019-11-10 16:05:17 +0100'>2019-11-10</span></td><td><a href='/guix/commit/gnu/packages/irc.scm?id=2ffae2689aef8efb325f97ec54abcdeee8588aa0'>gnu: limnoria: Update to 2019.11.09 [security fix].</a><span class='msg-avail'>...<span class='msg-tooltip'>See &lt;https://github.com/ProgVal/Limnoria/wiki/math-eval-vulnerability&gt;
(CVE number pending).

* gnu/packages/irc.scm (limnoria): Update to 2019.11.09.

Reported-by: Val Lorentz &lt;progval@progval.net&gt;
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2019-09-10 21:37:19 +0200'>2019-09-10</span></td><td><a href='/guix/commit/gnu/packages/irc.scm?id=07c0110eac24f2e1dc292e143d93f681244838a3'>gnu: weechat: Update to 2.6.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/irc.scm (weechat): Update to 2.6.
[source]: Remove obsolete patch.
[inputs]: Replace python-2 with python(@3).
[arguments]: Remove ‘wrap’ phase.
* gnu/packages/patches/weechat-python.patch: Delete file.
* gnu/local.mk (dist_patch_DATA): Remove it.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2019-07-03 14:37:33 -0400'>2019-07-03</span></td><td><a href='/guix/commit/gnu/packages/irc.scm?id=156b7abca86e835942f789ec470bc796cce06c41'>gnu: irssi: Update to 1.1.3. [fixes CVE-2019-13045].</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/irc.scm (irssi): Update to 1.1.3.
</span></span></td><td>Leo Famulari</td></tr>
<tr><td><span title='2019-06-20 11:55:09 +0200'>2019-06-20</span></td><td><a href='/guix/commit/gnu/packages/irc.scm?id=9553a41dbee956aeece7631321fc52a264311541'>gnu: weechat: update to 2.5</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/irc.scm (weechat): update to 2.5

Signed-off-by: Gábor Boskovits &lt;boskovits@gmail.com&gt;
</span></span></td><td>Josh Holland</td></tr>