Index: gap-4r8p4/lib/package.gi
===================================================================
--- gap-4r8p4.orig/lib/package.gi	2016-06-04 13:41:02.000000000 +0200
+++ gap-4r8p4/lib/package.gi	2016-06-11 12:10:48.586507243 +0200
@@ -1116,6 +1116,8 @@
     fi;
     for r in info do
       if r.Version = version then
+        path:= Concatenation( r.InstallationPath, "/bin/" );
+        Add( dirs, Directory( path ) );
         path:= Concatenation( r.InstallationPath, "/bin/", arch, "/" );
         Add( dirs, Directory( path ) );
         if arch <> GAPInfo.ArchitectureBase then
