{ sslSupport ? true , imageSupport ? true , stdenv, fetchurl, gtk, openssl ? null, gdkpixbuf ? null }: assert gtk != null; assert sslSupport -> openssl != null; assert imageSupport -> gdkpixbuf != null; stdenv.mkDerivation { name = "sylpheed-1.0.4"; builder = ./builder.sh; src = fetchurl { url = http://sylpheed.good-day.net/sylpheed/v1.0/sylpheed-1.0.4.tar.bz2; md5 = "e47b275c281335d09201503af2115eaa"; }; inherit sslSupport imageSupport; inherit gtk; openssl = if sslSupport then openssl else null; gdkpixbuf = if imageSupport then gdkpixbuf else null; }