{ stdenv, fetchFromGitHub, autoreconfHook, libibverbs, librdmacm, libevent

# Linux only deps
, numactl, kernel ? null
}:

stdenv.mkDerivation rec {
  name = "accelio-${version}${stdenv.lib.optionalString (kernel != null) "-kernel"}";
  version = "1.5";

  src = fetchFromGitHub {
    owner = "accelio";
    repo = "accelio";
    rev = "v1.5";
    sha256 = "172frqk2n43g0arhazgcwfvj0syf861vdzdpxl7idr142bb0ykf7";
  };

  hardeningDisable = [ "format" "pic" ];

  patches = [ ./fix-printfs.patch ];

  postPatch = ''
    # Don't build broken examples
    sed -i '/AC_CONFIG_SUBDIRS(\[\(examples\|tests\).*\/kernel/d' configure.ac

    # Allow the installation of xio kernel headers
    sed -i 's,/opt/xio,''${out},g' src/kernel/xio/Makefile.in

    # Don't install ldconfig entries
    sed -i '\,/etc/ld.so.conf.d/libxio.conf,d' src/usr/Makefile.am
    sed -i '\,/sbin/ldconfig,d' src/usr/Makefile.am
  '';

  nativeBuildInputs = [ autoreconfHook ];
  buildInputs = [ libevent ];
  propagatedBuildInputs = [ libibverbs librdmacm ]
    ++ stdenv.lib.optional stdenv.isLinux numactl;

  configureFlags = [
    "--enable-rdma"
    "--disable-raio-build"
  ] ++ stdenv.lib.optionals (kernel != null) [
    "--enable-kernel-module"
    "--with-kernel=${kernel.dev}/lib/modules/${kernel.modDirVersion}/source"
    "--with-kernel-build=${kernel.dev}/lib/modules/${kernel.modDirVersion}/build"
  ];

  INSTALL_MOD_PATH = "\${out}";

  meta = with stdenv.lib; {
    homepage = http://www.accelio.org/;
    description = "High-performance messaging and RPC library";
    longDescription = ''
      A high-performance asynchronous reliable messaging and RPC library
      optimized for hardware acceleration.
    '';
    license = licenses.bsd3;
    platforms = with platforms; linux ++ freebsd;
    maintainers = with maintainers; [ wkennington ];
    # kernel 4.2 is the most recent supported kernel
    broken = kernel != null &&
      (builtins.compareVersions kernel.version "4.2" == 1 ||
       (kernel.features.grsecurity or false));
  };
}