--- a/Makefile	2022-05-22 11:54:15.819138403 -0500
+++ b/Makefile	2022-05-22 11:56:24.475145274 -0500
@@ -1080,8 +1080,7 @@
 
 ifdef TILES_ANY
 ifndef NO_OPTIMIZE
-      PNGCRUSH = pngcrush -q -m 113
-      PNGCRUSH_LABEL = PNGCRUSH
+    USE_ADVPNG = y
 endif
 endif
 
@@ -1727,7 +1726,8 @@
 $(TILEDEFSRCS) $(TILEDEFHDRS) $(ORIGTILEFILES): build-rltiles
 
 dat/tiles/%.png: $(RLTILES)/%.png
 	$(QUIET_PNGCRUSH)$(PNGCRUSH) $< $@
+	$(QUIET_ADVPNG)$(ADVPNG) $@
 
 clean-rltiles:
 	$(RM) $(DESTTILEFILES)