stripping (with flags -S) in  /nix/store/kpkpyxf960ydnf9pz5a57vgv38alm17s-pgen/lib  /nix/store/kpkpyxf960ydnf9pz5a57vgv38alm17s-pgen/bin 
strip: can't process non-object and non-archive file: /nix/store/kpkpyxf960ydnf9pz5a57vgv38alm17s-pgen/lib/pkgconfig/pgen.pc
patching script interpreter paths