nixpkgs/pkgs/tools/X11/virtualgl/default.nix

{ stdenv, lib
, virtualglLib
, virtualglLib_i686 ? null
}:

stdenv.mkDerivation {
  name = "virtualgl-${lib.getVersion virtualglLib}";

  paths = [ virtualglLib ];

  buildCommand = ''
    mkdir -p $out/bin
    for i in ${virtualglLib}/bin/* ${virtualglLib}/bin/.vglrun*; do
      ln -s "$i" $out/bin
    done
  '' + lib.optionalString (virtualglLib_i686 != null) ''
    ln -sf ${virtualglLib_i686}/bin/.vglrun.vars32 $out/bin
  '';
}