Upgrade USE_LANGUAGES=ada to use lang/gcc5-aux instead of lang/gcc-aux

This large commit accomplishes the following:

1) Switch USE_LANGUAGES=ada to require lang/gcc5-aux (gcc 5.4) instead
   of lang/gcc-aux (gcc 4.9.2) on gcc.mk
2) Bump affected ports and fix paths as necessary
3) Upgrade devel/gprbuild to the latest release
   - No longer requires lang/gnat_util
   - gprslave requires gcc6-aux, so it was disabled for now
4) Fix lang/gnat_util but set PKG_SKIP_REASON
   - It has no further purpose in the pkgsrc tree
   - It has no practical purpose outside of the pkgsrc tree
   - Indicate intent to remove from tree in Jan. 2017
5) Set devel/GPS as failed with PKG_FAIL_REASON
   - This version of GPS is several years old and at the time they were
     strongly tied to compiler.
   - Latest release of GPS require gcc6-aux (not available) and several
     new and complex dependencies
   - maintainer (me) has no interest to continue supporting it
   - Leaving GPS in place until Jan 2017 to give another person chance to
     upgrade and take over support
   - Latest version in FreeBSD Ports Collection as a reference point

1 files changed, 2 insertions, 1 deletions

diff --git a/cad/ghdl/Makefile b/cad/ghdl/Makefile
index 5b7041f052e..e974a5b8a63 100644
--- a/cad/ghdl/Makefile
+++ b/cad/ghdl/Makefile
@@ -1,8 +1,9 @@
-# $NetBSD: Makefile,v 1.4 2014/12/11 20:12:36 wiz Exp $
+# $NetBSD: Makefile,v 1.5 2016/11/25 20:36:50 marino Exp $
 
 GCCVER=		4.9.2
 DISTNAME=	ghdl-0.32rc1
 CATEGORIES=	cad
+PKGREVISION=	1
 MASTER_SITES=	${MASTER_SITE_LOCAL}
 EXTRACT_SUFX=	.tar.bz2
 GCCDISTNAME=	gcc-${GCCVER}.tar.bz2