{stdenv, fetchurl}: stdenv.mkDerivation { name = "ilmbase-1.0.1"; src = fetchurl { url = mirror://savannah/openexr/ilmbase-1.0.1.tar.gz; sha256 = "0z9r3r0bxyhgwhkdwln0dg1lnxz691qnjygrqlg3jym34rxzq52g"; }; }