Added an assert to catch init/quit call mismatch that might bite people.
diff --git a/src/SDL.c b/src/SDL.c
index d8c05fb..b111115 100644
--- a/src/SDL.c
+++ b/src/SDL.c
@@ -65,6 +65,8 @@ static void
SDL_PrivateSubsystemRefCountDecr(Uint32 subsystem)
{
int subsystem_index = SDL_MostSignificantBitIndex32(subsystem);
+ /* If this assert triggers there is a mismatch between init and quit calls */
+ SDL_assert(SDL_SubsystemRefCount[subsystem_index] > 0);
if (SDL_SubsystemRefCount[subsystem_index] > 0) {
--SDL_SubsystemRefCount[subsystem_index];
}