{stdenv, fetchurl}: stdenv.mkDerivation { name = "libtasn1-1.4"; src = fetchurl { url = mirror://gnu/gnutls/libtasn1-1.4.tar.gz; sha256 = "15k14cl334cjdw6hbw3scdxm0pfv078kfq6bnz9ngyg4by1kgal4"; }; meta = { homepage = http://josefsson.org/libtasn1/; description = "An ASN.1 library"; }; }