$NetBSD: patch-configure,v 1.1 2023/04/26 20:53:23 nikita Exp $

Fix portability.

--- configure.orig	2023-04-26 22:07:06.196412552 +0200
+++ configure	2023-04-26 22:14:22.126422238 +0200
@@ -16809,7 +16809,7 @@
 fi
 
 
-if test "$ENABLE_MARCH" == "no_enable_march"; then
+if test "$ENABLE_MARCH" = "no_enable_march"; then
   { $as_echo "$as_me:${as_lineno-$LINENO}:
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