Fixed SDL building with the minimal configuration

src/SDL_log.c

@@ -369,7 +369,9 @@ SDL_LogOutput(void *userdata, int category, SDL_LogPriority priority,
         SDL_snprintf(tag, SDL_arraysize(tag), "SDL/%s", GetCategoryPrefix(category));
         __android_log_write(SDL_android_priority[priority], tag, message);
     }
-#elif defined(__APPLE__)
+#elif defined(__APPLE__) && defined(SDL_VIDEO_DRIVER_COCOA)
+    /* Technically we don't need SDL_VIDEO_DRIVER_COCOA, but that's where this function is defined for now.
+    */
     extern void SDL_NSLog(const char *text);
     {
         char *text;