I tried to compile the git repo's commit 0ec63ce7ce and that doesn't compile for me.
The interesting lines from the build output seem to be:
/home/cqrlog/build/src/fMonWsjtx.pas(1427,16) Error: (3205) Illegal qualifier
/home/cqrlog/build/src/fMonWsjtx.pas(1672,32) Error: (3205) Illegal qualifier
fMonWsjtx.pas(1881) Fatal: (10026) There were 2 errors compiling module, stopping
Fatal: (1018) Compilation aborted
Error: /usr/bin/ppcx64 returned an error exitcode
Error: (lazarus) Compile Project, Target: cqrlog: stopped with exit code 256
ERROR: failed compiling of project /home/cqrlog/build/src/cqrlog.lpi
Makefile:9: recipe for target 'cqrlog' failed
make: *** [cqrlog] Error 2
This is an attempt to compile on a Debian stretch machine.