[App_rpt-users] chan_dstar : missing source code of dextra_cli

Hi, I'm trying to connect app_rpt with my dstar reflector. I'm using "chan_dstar" channel driver, and I'm following the readme included with chan_dstar.c I need a dextra client called "dextra_cli", which seems to be a part of RtpDir from KI4LKF. I found an executable versions of "dextra_cli" for Windows and Linux, but I don't know which is the CPU target. This executable does not run on my machine (Debian 8 on x86 VM), and I didn't find the source code to recompile it. Does someone know where to find the source code for "dextra_cli" ? Thank you in advance. 73 de TK1BI