diff --git a/ldb/Makefile.orig b/ldb/Makefile.orig
index 6178273e78c5506e45aa1aad32e2c3b383e33db9..efdf01d49f97faaf154654530457f16925330142 100644
--- a/ldb/Makefile.orig
+++ b/ldb/Makefile.orig
@@ -1,4 +1,4 @@
-/* $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/ldb/Attic/Makefile.orig,v 1.17 1990/11/28 11:11:06 wlott Exp $ */
+/* $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/ldb/Attic/Makefile.orig,v 1.18 1991/02/16 01:17:41 wlott Exp $ */
 INCLS = -I.
 
 OBJS = ldb.o egets.o coreparse.o alloc.o monitor.o print.o \
@@ -66,14 +66,13 @@ assem.o: assem.s lisp.h lispregs.h globals.h
 
 #endif
 
-#if 0
 #ifdef ibmrt
 
 assem.o: assem.s
-	as assem.s
+	/lib/cpp assem.s | as -o assem.o
 
 #endif
-#endif
+
 
 #ifdef sparc
 
diff --git a/ldb/undefineds.src b/ldb/undefineds.src
index 4b00febe754cb2ce30346871ffbb0ca253f395b0..901095e8c9b844b1bb44bff7005d63792a5b9864 100644
--- a/ldb/undefineds.src
+++ b/ldb/undefineds.src
@@ -1,5 +1,5 @@
 /* Routines that must be linked into the core for lisp to work. */
-/* $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/ldb/Attic/undefineds.src,v 1.2 1990/11/24 15:39:13 wlott Exp $ */
+/* $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/ldb/Attic/undefineds.src,v 1.3 1991/02/16 01:19:05 wlott Exp $ */
 
 /* Pick up all the syscalls. */
 accept
@@ -91,7 +91,9 @@ settimeofday
 shutdown
 sigblock
 sigpause
+#ifndef ibmrt
 sigreturn
+#endif
 sigsetmask
 sigstack
 sigvec