casa-mp-base

Use MacPorts perl to avoid build failure with older perl on OS X 10.8

and earlier

https://sourceforge.net/p/isync/bugs/37/

--- src/drv_proxy_gen.pl.orig   2017-08-05 13:02:13.000000000 -0500

+++ src/drv_proxy_gen.pl    2017-10-04 01:15:53.000000000 -0500

@@ -1,4 +1,4 @@

-#!/usr/bin/perl

+#!@PREFIX@/bin/perl

 #

 # mbsync - mailbox synchronizer

 # Copyright (C) 2017 Oswald Buddenhagen <ossi@users.sf.net>