sipwitch: drop

{

  fetchurl,

  lib,

  stdenv,

  pkg-config,

  ucommon,

  libosip,

  libexosip,

  gnutls,

  zlib,

}:

stdenv.mkDerivation rec {

  pname = "sipwitch";

  version = "1.9.15";

  src = fetchurl {

    url = "mirror://gnu/sipwitch/sipwitch-${version}.tar.gz";

    sha256 = "2a7aa86a653f6810b3cd9cce6c37b3f70e937e7d14b09fd5c2a70d70588a9482";

  };

  nativeBuildInputs = [ pkg-config ];

  buildInputs = [

    ucommon

    libosip

    libexosip

    gnutls

    zlib

  ];

  preConfigure = ''

    export configureFlags="--sysconfdir=$out/etc"

  '';

  doCheck = true;

  meta = {

    description = "Secure peer-to-peer VoIP server that uses the SIP protocol";

    homepage = "https://www.gnu.org/software/sipwitch/";

    license = lib.licenses.gpl3Plus;

    maintainers = [ ];

    platforms = with lib.platforms; linux;

    broken = true; # Require libexosip2 < 5.0.0 which is vulnerable to CVE-2014-10375.

  };

}

  silc_client = throw "'silc_client' has been removed because it is unmaintained"; # Added 2025-05-12

  siproxd = throw "'siproxd' has been removed as it was unmaintained and incompatible with newer libosip versions"; # Added 2025-05-18

  sisco.lv2 = throw "'sisco.lv2' has been removed as it was unmaintained and broken"; # Added 2025-08-26

  sipwitch = throw "'sipwitch' has been removed because it has been marked as broken since at least November 2024."; # Added 2025-10-01

  sheesy-cli = throw "'sheesy-cli' has been removed due to lack of upstream maintenance"; # Added 2025-01-26

  shout = nodePackages.shout; # Added unknown; moved 2024-10-19

  sky = throw "'sky' has been removed because its upstream website disappeared"; # Added 2024-07-21