$NetBSD: patch-configure,v 1.1 2020/01/02 09:56:49 tsutsui Exp $

Fix for "ERROR: [check-portability.awk] => Found test ... == ...:" warning.

--- configure.orig	2008-01-06 06:20:00.000000000 +0000
+++ configure
@@ -13804,7 +13804,7 @@ if test "${enable_alsa+set}" = set; then
   enableval="$enable_alsa"
 
 fi;
-if test "$enable_alsa" == "yes" ; then
+if test "$enable_alsa" = "yes" ; then
   alsa_save_CFLAGS="$CFLAGS"
 alsa_save_LDFLAGS="$LDFLAGS"
 alsa_save_LIBS="$LIBS"