Created attachment 1933259 [details] alienarena-c99.patch Cvar_SetValue is called from source/game/g_unlagged.c, but it does not include source/qcommon/qcommon.h. This is results in an implicit function declaration, a C99 compatibility issue. I couldn't figure out how to report this upstream, so I'm filing this here for tracking purposes. I believe the issue is still present upstream at r5685.