Fix segfaults when playing games like bomberclone

http://bugs.gentoo.org/104533

--- src/video/SDL_blit_N.c
+++ src/video/SDL_blit_N.c
@@ -2245,7 +2245,7 @@
 			    MASKOK(dstfmt->Bmask, table[which].dstB) &&
 			    dstfmt->BytesPerPixel == table[which].dstbpp &&
 			    (a_need & table[which].alpha) == a_need &&
-			    ((table[which].blit_features & GetBlitFeatures()) == table[which].blit_features) )
+			    ((table[which].blit_features & GetBlitFeatures()) == GetBlitFeatures()) )
 				break;
 		}
 		sdata->aux_data = table[which].aux_data;