nixpkgs/pkgs/by-name/mu/muparserx/package.nix

{
  lib,
  stdenv,
  fetchFromGitHub,
  cmake,
}:

stdenv.mkDerivation rec {
  pname = "muparserx";
  version = "4.0.12";

  src = fetchFromGitHub {
    owner = "beltoforion";
    repo = "muparserx";
    rev = "v${version}";
    sha256 = "sha256-rekPXmncNdVX6LvPQP1M2Pzs3pyiCCcLPLnPFiyWJ4s=";
  };

  nativeBuildInputs = [ cmake ];

  doCheck = true;
  checkPhase = ''
    echo "***Muparserx self-test***"
    echo "quit" | ./example > test_result.log
    cat test_result.log
    if grep -Fqi "failed" test_result.log; then
      echo ">=1 muparserx tests failed"
      exit 1
    else
      echo -e "\nmuparserx tests succeeded"
    fi
  '';

  meta = with lib; {
    description = "C++ Library for Parsing Expressions with Strings, Complex Numbers, Vectors, Matrices and more";
    homepage = "https://beltoforion.de/en/muparserx/";
    license = licenses.bsd2;
    maintainers = [ ];
  };
}