$ diff -u Makefile.OSX.orig Makefile.OSX
--- Makefile.OSX.orig	2022-02-08 19:54:49.000000000 -0500
+++ Makefile.OSX	2022-02-08 19:56:13.000000000 -0500
@@ -15,13 +15,7 @@
 #
 
 # The following five variables may need to be changed
-# ARCH=-arch ppc
-ARCH=-arch i386
-LIBRARIES=/usr/lib
-INCLUDES=/usr/include
-BINARIES=/usr/local/bin
-CC=cc
-CFLAGS= $(ARCH) -DUNIX -fsigned-char -Wall -O3
+include flags
 
 OBJ4TH = errs_4th.o save_4th.o load_4th.o free_4th.o comp_4th.o \
 	name_4th.o dump_4th.o exec_4th.o open_4th.o cgen_4th.o \