$NetBSD: patch-scripts_build__apple__frameworks,v 1.1 2019/08/01 13:42:54 nia Exp $

Use portable test operator.

--- scripts/build_apple_frameworks.orig	2018-09-22 15:47:33.000000000 +0000
+++ scripts/build_apple_frameworks
@@ -82,7 +82,7 @@ do
   done
 
   create_framework $PACKAGE $VERSION $PLATFORM
-  if [ $PLATFORM == 'darwin' ]
+  if [ $PLATFORM = 'darwin' ]
   then
     # on darwin, build a .tar.bz2 of /usr and a .zip of aubio.framework
     create_tarballs $PACKAGE $VERSION $PLATFORM