deactivated trace function

git-svn-id: http://svn.ulf.wiger.net/gproc/branches/experimental-0906/gproc@33 f3948e33-8234-0410-8a80-a07eae3b6c4d

src/gproc.erl

@@ -51,7 +51,8 @@
 -include("gproc.hrl").
 
 -define(SERVER, ?MODULE).
--define(l, l(?LINE)).
+%%-define(l, l(?LINE)). % when activated, calls a traceable empty function
+-define(l, ignore).
 
 -define(CHK_DIST,
         case whereis(gproc_dist) of