PKGBUILDs/community/gap/gap-no-packages-by-default.patch

--- gap4r8/lib/package.gi.orig	2016-11-25 18:59:02.234113245 +0000
+++ gap4r8/lib/package.gi	2016-11-25 18:59:53.093996139 +0000
@@ -1743,9 +1743,7 @@
 For backwards compatibility, the default lists most of packages \
 that were autoloaded in GAP 4.4 (add or remove packages as you like)."
     ],
-  default:= [ "autpgrp", "alnuth", "crisp", "ctbllib", "factint", "fga", 
-              "irredsol", "laguna", "polenta", "polycyclic", "resclasses", 
-              "sophus", "tomlib" ],
+  default:= [ ],
   values:= function() return RecNames( GAPInfo.PackagesInfo ); end,
   multi:= true,
   ) );