tuxmath, new recipe for version 1.7.2 (#769)

games-kids/tuxmath/patches/tuxmath-1.7.2.patchset

@@ -0,0 +1,21 @@
+From 90c424b625d8696dba88228617081a8e03f2b290 Mon Sep 17 00:00:00 2001
+From: begasus <begasus@gmail.com>
+Date: Mon, 15 Aug 2016 11:14:15 +0200
+Subject: fix build
+
+
+diff --git a/src/SDL_extras.c b/src/SDL_extras.c
+index db67820..39274c2 100644
+--- a/src/SDL_extras.c
++++ b/src/SDL_extras.c
+@@ -987,6 +987,7 @@ static void free_font_list(void)
+ /* font in memory once loaded until cleanup.                  */
+ static TTF_Font* get_font(int size)
+ {
++  static char prev_font_name[FONT_NAME_LENGTH];
+   if (size < 0)
+   {
+     fprintf(stderr, "Error - requested font size %d is negative\n", size);
+-- 
+2.7.0
+