Fixed with https://github.com/rakudo/rakudo/commit/27dc7b155b , even better fixed with https://github.com/rakudo/rakudo/commit/1e246665cd . Tests needed.
> On 11 Mar 2017, at 04:11, Daniel Green (via RT) > <perl6-bugs-follo...@perl.org> wrote: > > # New Ticket Created by Daniel Green > # Please include the string: [perl #130979] > # in the subject line of all future correspondence about this issue. > # <URL: https://rt.perl.org/Ticket/Display.html?id=130979 > > > > [21:51] <timotimo> m: use CheckSystemDependency ( $name ) { say "lol" } > [21:51] <+camelia> rakudo-moar f190f2: OUTPUT: «===SORRY!===Cannot call > method 'List' on a null object» > [21:51] <timotimo> that's meant to be "sub" instead of use