--- mupdf-1.18.0-source/Makerules.orig	2020-10-07 12:35:03.000000000 +0200
+++ mupdf-1.18.0-source/Makerules	2021-07-18 20:55:06.667136139 +0200
@@ -40,8 +40,8 @@
   CFLAGS += -pipe -g
   LDFLAGS += -g
 else ifeq ($(build),release)
-  CFLAGS += -pipe -O2 -DNDEBUG -fomit-frame-pointer
-  LDFLAGS += $(LDREMOVEUNREACH) -Wl,-s
+  CFLAGS += -DNDEBUG
+  LDFLAGS += $(LDREMOVEUNREACH)
 else ifeq ($(build),small)
   CFLAGS += -pipe -Os -DNDEBUG -fomit-frame-pointer
   LDFLAGS += $(LDREMOVEUNREACH) -Wl,-s