New packages: pam_mount and libHX

Add pam_mount package. Integration into NixOS is still missing.

pkgs/os-specific/linux/pam_mount/default.nix

@@ -0,0 +1,29 @@
+{ stdenv, fetchurl, autoconf, automake, pkgconfig, libtool, pam, libHX, utillinux, libxml2, pcre, perl, openssl, cryptsetup }:
+
+stdenv.mkDerivation rec {
+  name = "pam_mount-2.14";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/pam-mount/pam_mount/2.14/${name}.tar.xz";
+    sha256 = "1yfwg8i4n7af8yi3w3pkqzqz75wgjjlg5lslv1r5g1v88nrwnrkg";
+  };
+
+  buildInputs = [ autoconf automake pkgconfig libtool pam libHX utillinux libxml2 pcre perl openssl cryptsetup ];
+
+  preConfigure = "sh autogen.sh --prefix=$out";
+
+  makeFlags = "DESTDIR=$(out)";
+
+  # Probably a hack, but using DESTDIR and PREFIX makes everything work!
+  postInstall = ''
+    cp -r $out/$out/* $out
+    rm -r $out/nix
+    '';
+
+  meta = {
+    homepage = http://pam-mount.sourceforge.net/;
+    description = "PAM module to mount volumes for a user session.";
+    maintainers = [];
+    platforms = stdenv.lib.platforms.linux;
+  };
+}