[ImNotTheNSA]

then it calls the Perl implementation... is there some nuance of perl that would cause a problem with that?

[zerocrates]

They're jokingly positing a loop: libc shells to perl, perl implements the function via libc call, which shells to perl... and so on.

[lathiat]

So if Perl uses libc, which shells put to perl, which uses libc... get it? :)