$NetBSD$

use the right shell and avoid a non-portable construct
Needed to configure on SunOS-5.9/sparc.

--- src/configure.orig	2007-06-15 13:31:37.404435000 -0400
+++ src/configure	2007-06-15 13:41:16.409314000 -0400
@@ -1,6 +1,7 @@
 #! /bin/sh
 # run the automatically generated configure script
-CONFIG_STATUS=auto/config.status \
-	auto/configure "$@" --srcdir="${srcdir:-.}" --cache-file=auto/config.cache
+CONFIG_STATUS=auto/config.status
+export CONFIG_STATUS
+$CONFIG_SHELL auto/configure "$@" --srcdir="${srcdir:-.}" --cache-file=auto/config.cache
 result=$?
 
