devel/gps: Fix compiler error highlight on FreeBSD

On DragonFly, GPS has been properly highlighting code errors during
compilation, but on FreeBSD nothing happens.  Luckily Rod Kay has been
persistent in diagnosing the cause and he finally isolated it to a
too-short timeout interval for Expect calls.  The timeout period was
set to 1 millisecond, the absolute shortest interval possible.  While
Linux and DF could complete the function call during this time, FreeBSD
requires at least 10 milliseconds to do the same.

I'm setting the timeout to 100 milliseconds to ensure this functionality
works on FreeBSD.  Rod and I can't immediately see any negative impact
to extending the timeout and we're casually pinging Adacore to understand
the orignal 1-ms value.

PR:	202317

devel/gps/Makefile

@@ -3,6 +3,7 @@
 
 PORTNAME=	gps
 PORTVERSION=	2016
+PORTREVISION=	1
 CATEGORIES=	devel
 MASTER_SITES=	http://downloads.dragonlace.net/src/
 DISTNAME=	gps-gpl-${PORTVERSION}-src

devel/gps/files/patch-kernel_src_gps-kernel-timeout.adb

@@ -0,0 +1,11 @@
+--- kernel/src/gps-kernel-timeout.adb.orig	2016-05-16 09:45:57 UTC
++++ kernel/src/gps-kernel-timeout.adb
+@@ -388,7 +388,7 @@ package body GPS.Kernel.Timeout is
+       Fd := Data.D.Descriptor;
+       if Fd /= null then
+          loop
+-            Expect (Fd.all, Result, Data.Expect_Regexp.all, Timeout => 1);
++            Expect (Fd.all, Result, Data.Expect_Regexp.all, Timeout => 100);
+ 
+             if Result /= Expect_Timeout then
+                --  Received something. Cancel timeout