{ stdenv, fetchurl, pkgconfig, gnum4 }: stdenv.mkDerivation rec { name = "libsigc++-2.2.10"; src = fetchurl { url = "mirror://gnome/sources/libsigc++/2.2/${name}.tar.xz"; sha256 = "8ceb6f2732f5399ef50d5b70f433d49945a12e0900b8f9f43c135866a2e5bf47"; }; buildInputs = [ pkgconfig gnum4 ]; meta = { homepage = http://libsigc.sourceforge.net/; description = "A typesafe callback system for standard C++"; }; }