use LC_ALL (osx fixes)

libs/sdl/sdl.c

@@ -98,7 +98,7 @@ HL_PRIM bool HL_NAME(init_once)() {
 		hl_error("SDL_Init failed: %s", hl_to_utf16(SDL_GetError()));
 		return false;
 	}
-	setlocale(LC_NUMERIC, "C");
+	setlocale(LC_ALL, "C");
 #	ifdef _WIN32
 	// Set the internal windows timer period to 1ms (will give accurate sleep for vsync)
 	timeBeginPeriod(1);