find the right GREP and SED programs and use them.

mk/bulk/printindex

@@ -1,5 +1,5 @@
 #!/bin/sh
-# $NetBSD: printindex,v 1.11 2003/05/06 17:42:04 jmmv Exp $
+# $NetBSD: printindex,v 1.12 2003/10/11 02:39:24 grant Exp $
 #
 #
 # Copyright (c) 2001 The NetBSD Foundation, Inc.
@@ -57,15 +57,21 @@ fi
 # /usr/pkgsrc
 cwd=$PWD
 
+# get some initial variables
+cd $cwd/pkgtools/pkglint
+GREP=`${BMAKE} show-var VARNAME=GREP`
+SED=`${BMAKE} show-var VARNAME=SED`
+cd $cwd
+
 # List of all pkgs, from pkgsrc/*/Makefile
-list=`grep '^[[:space:]]*'SUBDIR */Makefile | sed 's,/Makefile.*=[[:space:]]*,/,'`
+list=`${GREP} '^[[:space:]]*'SUBDIR */Makefile | ${SED} 's,/Makefile.*=[[:space:]]*,/,'`
 
 
 for pkgdir in $list
 do
 	if [ ! -d $pkgdir ]; then
 		echo "WARNING:  the package directory $pkgdir is listed in" > /dev/stderr
-		echo $pkgdir | sed 's;/.*;/Makefile;g' > /dev/stderr
+		echo $pkgdir | ${SED} 's;/.*;/Makefile;g' > /dev/stderr
 		echo "but the directory does not exist.  Please fix this!" > /dev/stderr
 	else
 		cd $pkgdir