--- Makefile.orig	2020-05-29 03:56:24 UTC
+++ Makefile
@@ -140,9 +140,9 @@ V ?= 0
 MACOS_UNIVERSAL ?= no
 
 ifeq ($(UNICORN_DEBUG),yes)
-CFLAGS += -g
+#CFLAGS += -g
 else
-CFLAGS += -O3
+#CFLAGS += -O3
 UNICORN_QEMU_FLAGS += --disable-debug-info
 endif
 
@@ -258,7 +258,7 @@ LIBDIRARCH ?= lib
 # Or better, pass 'LIBDIRARCH=lib64' to 'make install/uninstall' via 'make.sh'.
 #LIBDIRARCH ?= lib64
 
-LIBDIR ?= $(PREFIX)/$(LIBDIRARCH)
+LIBDIR = $(PREFIX)/$(LIBDIRARCH)
 INCDIR ?= $(PREFIX)/include
 BINDIR ?= $(PREFIX)/bin