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);