diff --git a/lib/dummy/Makefile b/lib/dummy/Makefile
index 41b2cf9ac..d3801078b 100755
--- a/lib/dummy/Makefile
+++ b/lib/dummy/Makefile
@@ -2,10 +2,12 @@
 
 # Make a dummy libm library so that -lm works.
 
-all:	../libm.a
 
-../libm.a:
-	echo "int __dummy__;" >dummy.c
-	$(CC) -c dummy.c
-	aal cr $@ dummy.o
-	rm dummy.?
+LIBRARIES=libm
+
+libm_OBJECTS=dummy.o
+
+include ../Makefile.inc
+
+dummy.c:
+	echo "int __dummy__;" > $@
diff --git a/lib/dummy/Makefile.ack b/lib/dummy/Makefile.ack
new file mode 100755
index 000000000..41b2cf9ac
--- /dev/null
+++ b/lib/dummy/Makefile.ack
@@ -0,0 +1,11 @@
+# Makefile for lib/dummy.
+
+# Make a dummy libm library so that -lm works.
+
+all:	../libm.a
+
+../libm.a:
+	echo "int __dummy__;" >dummy.c
+	$(CC) -c dummy.c
+	aal cr $@ dummy.o
+	rm dummy.?
diff --git a/lib/dummy/Makefile.gnu b/lib/dummy/Makefile.gnu
new file mode 100644
index 000000000..259774c52
--- /dev/null
+++ b/lib/dummy/Makefile.gnu
@@ -0,0 +1,19 @@
+
+CC=gcc
+AR=gar
+AS=gas
+LD=gld
+NM=gnm
+
+# Makefile for lib/dummy.
+
+# Make a dummy libm library so that -lm works.
+
+all:	../libm.a
+
+../libm.a:
+	echo "int __dummy__;" >dummy.c
+	$(CC) -c dummy.c
+	$(AR) cr $@ *.o
+	ranlib $@
+	rm dummy.?
diff --git a/lib/dummy/dummy.c b/lib/dummy/dummy.c
new file mode 100644
index 000000000..647347004
--- /dev/null
+++ b/lib/dummy/dummy.c
@@ -0,0 +1 @@
+int __dummy__;