diff --git a/mach/6500/cg/Makefile b/mach/6500/cg/Makefile
index 9b810e6d..bb54f712 100644
--- a/mach/6500/cg/Makefile
+++ b/mach/6500/cg/Makefile
@@ -61,6 +61,13 @@ install: all
 cmp:	 all
 	-../../compare cg
 
+distr:
+	make tables.c
+	rm -f tables1.[ch]
+	cp tables.c tables1.c
+	cp tables.h tables1.h
+	chmod -w tables1.[ch]
+
 
 tables.c: table
 	-mv tables.h tables.h.save
diff --git a/mach/pdp/cg/Makefile b/mach/pdp/cg/Makefile
index 9b810e6d..bb54f712 100644
--- a/mach/pdp/cg/Makefile
+++ b/mach/pdp/cg/Makefile
@@ -61,6 +61,13 @@ install: all
 cmp:	 all
 	-../../compare cg
 
+distr:
+	make tables.c
+	rm -f tables1.[ch]
+	cp tables.c tables1.c
+	cp tables.h tables1.h
+	chmod -w tables1.[ch]
+
 
 tables.c: table
 	-mv tables.h tables.h.save
diff --git a/mach/proto/cg/Makefile b/mach/proto/cg/Makefile
index 9b810e6d..bb54f712 100644
--- a/mach/proto/cg/Makefile
+++ b/mach/proto/cg/Makefile
@@ -61,6 +61,13 @@ install: all
 cmp:	 all
 	-../../compare cg
 
+distr:
+	make tables.c
+	rm -f tables1.[ch]
+	cp tables.c tables1.c
+	cp tables.h tables1.h
+	chmod -w tables1.[ch]
+
 
 tables.c: table
 	-mv tables.h tables.h.save
diff --git a/mach/vax4/cg/Makefile b/mach/vax4/cg/Makefile
index 9b810e6d..bb54f712 100644
--- a/mach/vax4/cg/Makefile
+++ b/mach/vax4/cg/Makefile
@@ -61,6 +61,13 @@ install: all
 cmp:	 all
 	-../../compare cg
 
+distr:
+	make tables.c
+	rm -f tables1.[ch]
+	cp tables.c tables1.c
+	cp tables.h tables1.h
+	chmod -w tables1.[ch]
+
 
 tables.c: table
 	-mv tables.h tables.h.save
diff --git a/mach/z80/cg/Makefile b/mach/z80/cg/Makefile
index 9b810e6d..bb54f712 100644
--- a/mach/z80/cg/Makefile
+++ b/mach/z80/cg/Makefile
@@ -61,6 +61,13 @@ install: all
 cmp:	 all
 	-../../compare cg
 
+distr:
+	make tables.c
+	rm -f tables1.[ch]
+	cp tables.c tables1.c
+	cp tables.h tables1.h
+	chmod -w tables1.[ch]
+
 
 tables.c: table
 	-mv tables.h tables.h.save
diff --git a/mach/z8000/cg/Makefile b/mach/z8000/cg/Makefile
index 9b810e6d..bb54f712 100644
--- a/mach/z8000/cg/Makefile
+++ b/mach/z8000/cg/Makefile
@@ -61,6 +61,13 @@ install: all
 cmp:	 all
 	-../../compare cg
 
+distr:
+	make tables.c
+	rm -f tables1.[ch]
+	cp tables.c tables1.c
+	cp tables.h tables1.h
+	chmod -w tables1.[ch]
+
 
 tables.c: table
 	-mv tables.h tables.h.save