$NetBSD: patch-configure,v 1.2 2016/07/15 11:36:43 mef Exp $

Remove bash(1)ism(?).

--- configure.orig	2016-05-08 11:49:36.000000000 +0900
+++ configure	2016-07-15 20:28:13.000000000 +0900
@@ -16667,8 +16667,8 @@ then
 	# But not the NetBSD sh, so use sed instead.
 	# CFLAGS="${CFLAGS//-O[[2-9]]} -g"
 	# CXXFLAGS="${CXXFLAGS//-O[[2-9]]} -g"
-	CFLAGS=`echo ${CFLAGS} -g |sed "s/-O[2-9]//g"`
-	CXXFLAGS=`echo ${CXXFLAGS} -g |sed "s/-O[2-9]//g"`
+	CFLAGS="${CFLAGS} -g"
+	CXXFLAGS="${CXXFLAGS} -g"
 	LDFLAGS="${LDFLAGS} -g"
 	$as_echo "#define DEBUG 1" >>confdefs.h