Fixed datapath, for develouping on bc without having it installed

src/gfx.c

@@ -511,10 +511,15 @@ gfx_loaddata ()
     /* load the font */
     sprintf (filename, "%s/gfx/font.bmp", bman.datapath);
     tmpimage = SDL_LoadBMP (filename);
+    if (tmpimage == NULL) {
+		sprintf (bman.datapath, "data");
+		sprintf (filename, "%s/gfx/font.bmp", bman.datapath);
+		tmpimage = SDL_LoadBMP (filename);
 		if (tmpimage == NULL) {
 			printf ("Can't load image: %s\n", SDL_GetError ());
 			exit (1);
 		}
+    }
     SDL_SetColorKey (tmpimage, SDL_SRCCOLORKEY, SDL_MapRGB (tmpimage->format, 0, 0, 0));
     gfx.font.image = SDL_DisplayFormat (tmpimage);
     gfx.font.size.x = 16;