--- gcc/config/x-i386sco	2018/04/24 18:00:02	1.1.1.3
+++ gcc/config/x-i386sco	2018/04/24 18:05:56	1.1.1.4
@@ -1,9 +1,7 @@
-INSTALL=cp
 RANLIB = :
 RANLIB_TEST = false
-CC = rcc
-OLDCC = rcc
+CC = rcc $(RCCFLAGS)
+OLDCC = rcc $(RCCFLAGS)
+RCCFLAGS = -Dunix -Di386 -DM_UNIX -DM_I386 -DNULL=0
 CCLIBFLAGS =
-RCCFLAGS = -Dunix -Di386 -DM_UNIX -DM_I386
-XCFLAGS = $(RCCFLAGS)
 CLIB = -lPW