diff -Nru a/src/allegro/include/allegro/alcompat.h b/src/allegro/include/allegro/alcompat.h --- a/src/allegro/include/allegro/alcompat.h 2016-07-21 18:59:28.000000000 +0200 +++ b/src/allegro/include/allegro/alcompat.h 2018-10-06 08:23:41.498580086 +0200 @@ -40,7 +40,7 @@ #endif #endif - #ifndef ALLEGRO_NO_FIX_ALIASES + #ifdef ALLEGRO_FIX_ALIASES AL_ALIAS(fixed fadd(fixed x, fixed y), fixadd(x, y)) AL_ALIAS(fixed fsub(fixed x, fixed y), fixsub(x, y)) AL_ALIAS(fixed fmul(fixed x, fixed y), fixmul(x, y))