[RPL/2] How to start the interactive mode?

[Michael K]

Hi,
I tried to run rpl in interactive mode as seen on the screenshots. I
used the "-i" switch as seen in the screenshots and in the help, but it
does not do what i expect. I get:

$ ./rpl -i
+++RPL/2 (R) version 4.1.14 (Wednesday 06/26/13, 17:16:59 CEST)
+++Copyright (C) 1989 to 2012, 2013 BERTRAND Joel

+++This is a free software with absolutely no warranty.
+++For details, type 'warranty'.

+++Fatal : Error in compilation
$

With both the 4.1.14 (latest stable tarball) and the 4.1.9 (binary
version). I however expected a interactive prompt. How do i get there?