[zeromq-dev] gsl details

[Matjaž Ostroveršnik]

Hi veterans,

I am trying to understand how gsl woks. Yes I read the instructions 
(https://github.com/imatix/gsl)

command
gsl mlm_proto.xml

executed from malamute/src folder
properly generates mlm_proto.c and mlm_proto.bnf in the current directory

command
gsl src/mlm_proto.xml

executed from one folder above produces

GSL/4.1c Copyright (c) 1996-2016 iMatix Corporation
gsl/4 I: Processing src/mlm_proto.xml...
(zproto_lib.gsl 99) Undefined expression: class.load_file (...)

obviously gsl gets some additional input from files in current directory.
1. Which files are those?
2. Can I explicitly state where to take this file from?
3. What the following command is supposed to do? (explanation of parameters)
           gsl -topdir:.. -zproject:1 -q mlm_proto.xml


Thanks in advance

Matjaž