stripping (with flags -S) in  /nix/store/rprrag6rxjxmsbk1inhcyj4a7lfiwpbj-sdf-library/lib 
strip: can't process non-object and non-archive file: /nix/store/rprrag6rxjxmsbk1inhcyj4a7lfiwpbj-sdf-library/lib/pkgconfig/sdf-library.pc
patching script interpreter paths