Don't lose if obj dir not present.

bin/sh/mkbuiltins

@@ -36,14 +36,15 @@
 #
 #	@(#)mkbuiltins	5.2 (Berkeley) 3/8/91
 #
-#	$Header: /cvsroot/src/bin/sh/mkbuiltins,v 1.3 1993/03/23 00:28:34 cgd Exp $
+#	$Header: /cvsroot/src/bin/sh/mkbuiltins,v 1.4 1993/04/18 17:37:21 mycroft 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 objdir=obj; else objdir=.; fi
+exec > ${objdir}/builtins.c
 cat <<\!
 /*
  * This file was generated by the mkbuiltins program.
@@ -68,7 +69,7 @@ awk '{	for (i = 2 ; i <= NF ; i++) {
 echo '	NULL, 0
 };'
 
-exec > obj/builtins.h
+exec > ${objdir}/builtins.h
 cat <<\!
 /*
  * This file was generated by the mkbuiltins program.