Running: perl6-debug-m outputs: ===SORRY!=== Could not find Debugger::UI::CommandLine at line 1 in: /home/preney/crossdev/lib /home/preney/.perl6 /usr/share/perl6/site /usr/share/perl6/vendor /usr/share/perl6 CompUnit::Repository::AbsolutePath<48984320> CompUnit::Repository::NQP<42283688> CompUnit::Repository::Perl5<42283728> zsh: exit 1 perl6-debug-m with dev-lang/rakudo (2017.07@2017-09-13) installed. Is this debugger dependent on specific USE flags, Gentoo configuration, or is this an upstream problem? (I did a default install of perl6, i.e., rakudo USE flags are moar -clang -java -test under Linux). perl6, perl6-m, perl6-gdb-m, perl6-valgrind-m all appear to run properly.
I think this is a lack of installed libraries/modules - a bit of a weak spot of our current rakudo setup :\ To fix that nicely we'd need to figure out how to package at least the common modules.