--- CPP/7zip/7zip_gcc.mak.orig	2022-04-02 21:21:09.000000000 -0700
+++ CPP/7zip/7zip_gcc.mak	2022-04-02 21:21:39.000000000 -0700
@@ -18,7 +18,7 @@
 
 
 ifneq ($(CC), xlc)
-CFLAGS_WARN_WALL = -Werror -Wall -Wextra
+CFLAGS_WARN_WALL = -Wall -Wextra
 endif
 
 # for object file