Source: https://src.fedoraproject.org/rpms/torcs/raw/rawhide/f/torcs-1.3.7-nullptr.patch
Upstream-status: https://sourceforge.net/p/torcs/mailman/message/36490328/

--- torcs-1.3.7/src/libs/musicplayer/OpenALMusicPlayer.cpp.orig	2014-02-05 10:54:43.000000000 +0100
+++ torcs-1.3.7/src/libs/musicplayer/OpenALMusicPlayer.cpp	2018-07-09 20:56:42.521607205 +0100
@@ -161,7 +161,7 @@
 {
 	char pcm[BUFFERSIZE];
 	int size = 0;
-	const char* error = '\0';
+	const char* error = nullptr;
 	
 	if (!stream->read(pcm, BUFFERSIZE, &size, &error)) {
 		GfError("OpenALMusicPlayer: Stream read error: %s\n", error);
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<tr><td class='sub'>Wojtek's customized Guix</td><td class='sub right'></td></tr></table>
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<div class='path'>path: <a href='/guix/log/?id=0e3897187c6e3fc821b59153b6b632896a1a380e'>root</a>/<a href='/guix/log/tests?id=0e3897187c6e3fc821b59153b6b632896a1a380e'>tests</a>/<a href='/guix/log/tests/rsa.key?id=0e3897187c6e3fc821b59153b6b632896a1a380e'>rsa.key</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/tests/rsa.key?id=0e3897187c6e3fc821b59153b6b632896a1a380e&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-05-04 09:56:12 +0200'>2020-05-04</span></td><td><a href='/guix/commit/tests/rsa.key?id=43408e304ffb1149f35cb539b40d673d567c9116'>Add (guix openpgp).</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/openpgp.scm, tests/openpgp.scm, tests/civodul.key,
tests/dsa.key, tests/ed25519.key, tests/rsa.key,
tests/ed25519.sec: New files.
* Makefile.am (MODULES): Add guix/openpgp.scm.
(SCM_TESTS): Add tests/openpgp.scm.
(EXTRA_DIST): Add tests/*.key and tests/ed25519.sec.
</span></span></td><td>Ludovic Courtès</td></tr>