Make build work, even if there is no obj subdir.

bin/sh/mkbuiltins

@@ -35,14 +35,18 @@
 # SUCH DAMAGE.
 #
 #	@(#)mkbuiltins	8.1 (Berkeley) 5/31/93
-#	$Id$
+#	$Id: mkbuiltins,v 1.2 1994/09/24 02:57:53 davidg Exp $
 
 temp=/tmp/ka$$
 havejobs=0
 if grep '^#define JOBS[	 ]*1' shell.h > /dev/null
 then	havejobs=1
 fi
-exec > obj/builtins.c
+if [ -d obj ] ; then
+	exec > obj/builtins.c
+else
+	exec > builtins.c
+fi
 cat <<\!
 /*
  * This file was generated by the mkbuiltins program.
@@ -67,7 +71,11 @@ awk '{	for (i = 2 ; i <= NF ; i++) {
 echo '	NULL, 0
 };'
 
-exec > obj/builtins.h
+if [ -d obj ] ; then
+	exec > obj/builtins.h
+else
+	exec > builtins.h
+fi
 cat <<\!
 /*
  * This file was generated by the mkbuiltins program.