--- gcc/config/i386/x-sco4	2018/04/24 18:10:27	1.1
+++ gcc/config/i386/x-sco4	2018/04/24 18:23:19	1.1.1.2
@@ -1,7 +1,10 @@
 RANLIB = :
 RANLIB_TEST = false
-CLIB = -lPW
-CC = cc -nointl
+CC = rcc $(RCCFLAGS)
+OLDCC = rcc $(RCCFLAGS)
+RCCFLAGS = -Dunix -Di386 -DM_UNIX -DM_I386 -DNULL=0
+CCLIBFLAGS =
+CLIB = -lmalloc -lPW
 
-# Seems to be needed with SCO DEV3.2v4.
-X_CFLAGS = -D__STDC__=0
+# See all the declarations.
+FIXPROTO_DEFINES = -D_XOPEN_SOURCE