stripping (with flags -S) in  /nix/store/6drb97qspid9mw7gb2ad1pkf2d1mar0h-sdf-library/lib 
strip: /nix/store/6drb97qspid9mw7gb2ad1pkf2d1mar0h-sdf-library/lib/pkgconfig/sdf-library.pc: File format not recognized
patching ELF executables and libraries
patching script interpreter paths