When I run 'luajit -jdump some-file.lua', I get luajit: unknown luaJIT command or jit.* modules not installed By default, the LUA_PATH does not include the files inside /usr/share/luajit-2.0.5/jit, which is the cause of this problem.
Created attachment 530408 [details] emerge --info
Thank you for the report. Please recompile and *attach* the logfiles as described on https://wiki.gentoo.org/wiki/Attach_the_logs_to_the_bug_ticket Please reopen this ticket (Status:unconfirmed) afterwards.
Created attachment 530412 [details] emerge --info dev-lang/luajit
Created attachment 530414 [details] build.log