stripping (with flags -S) in  /nix/store/klxyk3ydrf28v1ac202hzs8raf0yz5qs-pgen/lib  /nix/store/klxyk3ydrf28v1ac202hzs8raf0yz5qs-pgen/bin 
strip: can't process non-object and non-archive file: /nix/store/klxyk3ydrf28v1ac202hzs8raf0yz5qs-pgen/lib/pkgconfig/pgen.pc
patching script interpreter paths