Merge: mautrix-signal: fix build with goolm, enable checks & version test (#353730)

{

  lib,

  stdenv,

  buildGoModule,

  fetchFromGitHub,

  fetchpatch,

  olm,

  libsignal-ffi,

  versionCheckHook,

  # This option enables the use of an experimental pure-Go implementation of

  # the Olm protocol instead of libolm for end-to-end encryption. Using goolm

  # is not recommended by the mautrix developers, but they are interested in

    })

  ];

  buildInputs = (lib.optional (!withGoolm) olm) ++ [

  buildInputs =

    (lib.optional (!withGoolm) olm)

    ++ (lib.optional withGoolm stdenv.cc.cc.lib)

    ++ [

      # must match the version used in https://github.com/mautrix/signal/tree/main/pkg/libsignalgo

      # see https://github.com/mautrix/signal/issues/401

      libsignal-ffi

    ];

  tags = lib.optional withGoolm "goolm";

  CGO_LDFLAGS = lib.optional withGoolm [ "-lstdc++" ];

  vendorHash = "sha256-bKQKO5RqgMrWq7NyNF1rj2CLp5SeBP80HWxF8MWnZ1U=";

  doCheck = false;

  doCheck = true;

  preCheck =

    ''

      # Needed by the tests to be able to find libstdc++

      export LD_LIBRARY_PATH="${stdenv.cc.cc.lib}/lib:$LD_LIBRARY_PATH"

    ''

    + (lib.optionalString (!withGoolm) ''

      # When using libolm, the tests need explicit linking to libstdc++

      export CGO_LDFLAGS="-lstdc++"

    '');

  postCheck = ''

    unset LD_LIBRARY_PATH

  '';

  doInstallCheck = true;

  nativeInstallCheckInputs = [ versionCheckHook ];

  versionCheckProgramArg = [ "--version" ];

  meta = with lib; {

    homepage = "https://github.com/mautrix/signal";