--- OOC/Makefile	2022-11-15 15:25:59.668336806 +0000
+++ OOC/Makefile.fixed	2022-11-15 15:25:53.498212219 +0000
@@ -31,6 +31,6 @@
 	ar rvs OOC64.a ${OOC_OBJ}
 
 clean:
-	chmod 644 *.c *.h *.asm *.txt Makefile*
+	-chmod 644 *.c *.h *.asm *.txt Makefile*
 	rm -f ${OOC_OBJ} OOC32.a OOC64.a