softhsm: fix src to use Github

Softhsm sources are no longer available, switch to GitHub.
After changing the sources, I was no longer able to compile
softhsm, as no makefile is included in the tag version there.
Add autoreconfHook to fix this.

Signed-off-by: Markus Theil <theil.markus@gmail.com>

pkgs/by-name/so/softhsm/package.nix

@@ -1,9 +1,10 @@
 {
   lib,
   stdenv,
-  fetchurl,
+  fetchFromGitHub,
   botan2,
   sqlite,
+  autoreconfHook,
 }:
 
 stdenv.mkDerivation rec {
@@ -11,11 +12,17 @@ stdenv.mkDerivation rec {
   pname = "softhsm";
   version = "2.6.1";
 
-  src = fetchurl {
-    url = "https://dist.opendnssec.org/source/${pname}-${version}.tar.gz";
-    hash = "sha256-YSSUcwVLzRgRUZ75qYmogKe9zDbTF8nCVFf8YU30dfI=";
+  src = fetchFromGitHub {
+    owner = "softhsm";
+    repo = "SoftHSMv2";
+    rev = "${version}";
+    hash = "sha256-sx0ceVY795JbtKbQGAVFllB9UJfTdgd242d6c+s1tBw=";
   };
 
+  nativeBuildInputs = [
+    autoreconfHook
+  ];
+
   configureFlags = [
     "--with-crypto-backend=botan"
     "--with-botan=${lib.getDev botan2}"