stripping (with flags -S) in  /nix/store/xdgj8lmky0mx5a7k19zjac2srj6j0p3f-sdf-library/lib 
strip: /nix/store/xdgj8lmky0mx5a7k19zjac2srj6j0p3f-sdf-library/lib/pkgconfig/sdf-library.pc: File format not recognized
patching ELF executables and libraries
patching script interpreter paths