Fixes #460
3CSPTBW5QHOLPGMZNHVOZWT4L23233ZRKPLKBXXLMB4EUKRMRSPQC
ICYJNJWHY6KBNLM2EMSW7VJ35OIOHN26JO3FG32VYTKNLFNZAREQC
T4LLYESZ2HUXSLKZ6GNBLVWUVG7R5IDFHYHYO773QIZ6QTOOXR2AC
PERL5LIB=$(pwd)/src/lib:$PERL5LIB;
${lib.optionalString shell "PERL5LIB=$(pwd)/src/lib:$PERL5LIB"}