$NetBSD: patch-configure,v 1.2 2019/10/18 13:41:35 nia Exp $

test(1) portability

--- configure.orig	2017-05-10 21:37:33.000000000 +0000
+++ configure
@@ -16568,7 +16568,7 @@ else
   USE_DEBUG="no"
 fi
 
-if test "x$USE_DEBUG" == "xyes" ; then
+if test "x$USE_DEBUG" = "xyes" ; then
 
 cat >>confdefs.h <<_ACEOF
 #define DEBUG 1