{ lib, stdenv, fetchurl, pkg-config, gtk2, openssl ? null, gpgme ? null , gpgSupport ? true, sslSupport ? true }: assert gpgSupport -> gpgme != null; assert sslSupport -> openssl != null; with lib; stdenv.mkDerivation rec { pname = "sylpheed"; version = "3.7.0"; src = fetchurl { url = "https://sylpheed.sraoss.jp/sylpheed/v3.7/${pname}-${version}.tar.xz"; sha256 = "0j9y5vdzch251s264diw9clrn88dn20bqqkwfmis9l7m8vmwasqd"; }; nativeBuildInputs = [ pkg-config ]; buildInputs = [ gtk2 ] ++ optionals gpgSupport [ gpgme ] ++ optionals sslSupport [ openssl ]; configureFlags = optional gpgSupport "--enable-gpgme" ++ optional sslSupport "--enable-ssl"; meta = { homepage = "https://sylpheed.sraoss.jp/en/"; description = "Lightweight and user-friendly e-mail client"; maintainers = with maintainers; [ eelco ]; platforms = platforms.linux ++ platforms.darwin; license = licenses.gpl2; }; }