{
  description = "GixSQL is an ESQL preprocessor and a series of runtime libraries to enable GnuCOBOL to access PostgreSQL, ODBC, MySQL, Oracle and SQLite databases.";

  inputs = {
    gixsql-src = {
      url = "https://github.com/mridoni/gixsql/releases/download/v1.0.20b/gixsql-1.0.20b.tar.gz";
      flake = false;
    };
  };

  outputs =
    { self
    , nixpkgs
    , gixsql-src
    }:
    let
      supportedSystems = [ "x86_64-linux" ];
      forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
      nixpkgsFor = forAllSystems (system: import nixpkgs {
        inherit system;
        overlays = [ self.overlays.default ];
      });
    in
    {
      overlays.default = final: prev: {
        gixsql =
          final.stdenv.mkDerivation {
            pname = "gixsql";
            version = "0.1.0";
            src = gixsql-src;

            buildInputs = [ ];

            nativeBuildInputs = [
                final.bison
                final.flex
                final.pkg-config
                final.autoconf
                final.automake
                final.libtool
                final.spdlog
                final.binutils
                final.gcc
            ];

            patches = [
                ./remove-stdcxxfs.patch
                ./add-cstdint.patch
            ];

            configurePhase = ''
                autoreconf -fi
                automake --add-missing
                ./configure --prefix=$out --disable-mysql --disable-odbc --disable-oracle
            '';

            buildPhase = ''
                make CXXFLAGS="-Wno-error -Wno-format-security"
            '';

            installPhase = ''
                make install
            '';
          };
      };

      packages = forAllSystems (system: {
        inherit (nixpkgsFor."${system}") gixsql;
      });

      defaultPackage = forAllSystems (system: self.packages."${system}".gixsql);
    };
}