--- tuxmath_w_fonts-2.0.1/src/titlescreen.c~	2011-04-11 05:05:58.000000000 +0200

+++ tuxmath_w_fonts-2.0.1/src/titlescreen.c	2015-07-24 05:48:03.385868605 +0200

@@ -50,7 +50,7 @@

 SDL_Color bright_green;

 // Type needed for trans_wipe():

-struct blit {

+static struct blit {

     SDL_Surface *src;

     SDL_Rect *srcrect;

     SDL_Rect *dstrect;