Avoid usage of PATH_MAX.

Submitted to bug-less@gnu.org.

From ef652341ed8b2c14ac40312ccd4ed329cb69fd0c Mon Sep 17 00:00:00 2001
From: Jan Nieuwenhuizen <janneke@gnu.org>
Date: Sat, 7 Mar 2020 14:57:19 +0100
Subject: [PATCH] Avoid usage of PATH_MAX.

* filename.c (lrealpath): Have realpath allocate the buffer.  Fixes
compilation on the Hurd and avoids possible buffer overflow on other
systems.
---
 filename.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/filename.c b/filename.c
index e420837..faa71b0 100644
--- a/filename.c
+++ b/filename.c
@@ -795,9 +795,9 @@ lrealpath(path)
 	char *path;
 {
 #if HAVE_REALPATH
-	char rpath[PATH_MAX];
-	if (realpath(path, rpath) != NULL)
-		return (save(rpath));
+	char *rpath = NULL;
+	if ((rpath = realpath(path, rpath)) != NULL)
+		return (rpath);
 #endif
 	return (save(path));
 }
-- 
2.24.0

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<tr><td><span title='2020-04-05 22:49:23 -0400'>2020-04-05</span></td><td><a href='/guix/commit/gnu/packages/patches/mediastreamer2-srtp2.patch?id=fe6ccb855234111cfe2460bb2469bc7b766e534e'>gnu: mediastreamer2: Move the tester files and HTML doc to separate outputs.</a><span class='msg-avail'>...<span class='msg-tooltip'>The tester binary generated gets installed with about 20 MiB of data files,
and the HTML documentation weighs another 500 KiB or so.  Move them to
separate outputs.

* gnu/packages/patches/mediastreamer-srtp2.patch: Rename to...
* gnu/packages/patches/mediastreamer2-srtp2.patch: ...this, to please 'guix
lint'.
* gnu/local.mk (dist_patch_DATA): Adapt.
* gnu/packages/linphone.scm (mediastreamer2)[patches]: Likewise.
[outputs]: Add the "doc" and "tester" outputs.
[phases]: Add a phase to move the HTML doc and tester binary and data to the
'doc' and 'tester' outputs, respectively.
[description]: Remove the unicode characters surrounding the word 'powerful'.
</span></span></td><td>Maxim Cournoyer</td></tr>