--- Makefile.orig	2023-12-03 05:11:49 UTC
+++ Makefile
@@ -1,11 +1,11 @@
 # Install Configuration
 
 # Your C compiler
-CC=gcc
+CC?=gcc
 #CC=clang
 
 # Compiler options
-CFLAGS = -g -O0 -Wall -Wextra -W -Wno-sign-compare -Wno-unused-parameter
+CFLAGS += -g -O0 -Wall -Wextra -W -Wno-sign-compare -Wno-unused-parameter
 CPPFLAGS = -DSHARE_INSTDIR="\"$(SHARE_INSTDIR)\""
 LDFLAGS =