dlib::external_library!

macro_rules! external_library(
    ($structname: ident, $link: expr,
        $(statics: $($sname: ident: $stype: ty),+)|*
        $(functions: $(fn $fname: ident($($farg: ty),*) -> $fret:ty),+)|*
        $(varargs: $(fn $vname: ident($($vargs: ty),+ ...) -> $vret: ty),+)|*
    ) => (
        dlopen_external_library!(
            $structname, $(statics: $($sname: $stype),+)|*
            $(functions: $(fn $fname($($farg),*) -> $fret),+)|*
            $(varargs: $(fn $vname($($vargs),+ ...) -> $vret),+)|*
        );
    );
);