aria2: Fix ssl support and switch back to sourceforge

Using sourceforge gives release binaries which don't require us to
regenerate all of the autotools scripts. This removes the need for
dependencies like cppunit and libgcrypt and autoreconfHook.

cc @geerds

pkgs/tools/networking/aria2/default.nix

···
-{ stdenv, fetchFromGitHub, pkgconfig, autoreconfHook, cppunit, libgcrypt
-, c-ares, libxml2, sqlite, zlib }:
+{ stdenv, fetchurl, pkgconfig, autoreconfHook
+, openssl, c-ares, libxml2, sqlite, zlib, libssh2
+}:
 
 stdenv.mkDerivation rec {
   name = "aria2-${version}";
   version = "1.19.0";
 
-  src = fetchFromGitHub {
-    owner = "tatsuhiro-t";
-    repo = "aria2";
-    rev = "release-${version}";
-    sha256 = "1k4b8jfg4wjsvybb7hysplp6h831allhiqdy9jwsyy0m0zmgk00a";
+  src = fetchurl {
+    url = "mirror://sourceforge/aria2/${name}.tar.xz";
+    sha256 = "0xm4fmap9gp2pz6z01mnnpmazw6pnhzs8qc58181m5ai4gy5ksp2";
   };
 
-  buildInputs = [
-    pkgconfig autoreconfHook cppunit libgcrypt c-ares libxml2 sqlite zlib
-  ];
+  nativeBuildInputs = [ pkgconfig ];
+  buildInputs = [ openssl c-ares libxml2 sqlite zlib libssh2 ];
 
   configureFlags = [ "--with-ca-bundle=/etc/ssl/certs/ca-certificates.crt" ];