--- makefile.orig	2022-10-10 05:31:51 UTC
+++ makefile
@@ -28,7 +28,7 @@
 
 
 SYSTEM=$(shell uname -s)
-CFLAGS=-std=c99 -pedantic -O3 -Wall
+CFLAGS+=-std=c99 -pedantic -Wall
 ifeq ($(SYSTEM),Linux)
 CFLAGS+=-D_POSIX_C_SOURCE=200112L -D_XOPEN_SOURCE_EXTENDED
 CFLAGS+=-I /usr/include/ncursesw