# Perhaps we can get some ideas from here ? http://gentoo-wiki.com/HOWTO_Jack
# still much to test but it compiles now
args:
let inherit (args.composableDerivation) composableDerivation edf; in
composableDerivation {
  initial = {
    buildInputs = [ args.pkgconfig ];
    flags =
        # FIXME: tidy up
         edf { name = "posix-shm"; } #use POSIX shm API
      // edf { name = "timestamps"; }                      # allow clients to use the JACK timestamp API
      // edf { name = "capabilities"; }                   #use libcap to gain realtime scheduling priviledges
      // edf { name = "oldtrans"; }                      #remove old transport interfaces
      // edf { name = "stripped-jackd"; }                 #strip jack before computing its md5 sum
      // edf { name = "portaudio"; }                     #ignore PortAudio driver
      // edf { name = "coreaudio"; }                     #ignore CoreAudio driver
      // edf { name = "oss"; }                           #ignore OSS driver
      // edf { name = "freebob"; }                       #ignore FreeBob driver
      // edf { name = "alsa"; enable = { buildInputs=[args.alsaLib]; }; };

      # altivec seems to be for mac only ?
      #  altivec =           { configureFlags = ["--enable-altivec"]; };                        #enable Altivec support (default=auto)

      # keeping default values by now:
      # optimization_by_compiler = { configureFlags = ["--enable-optimization-by-compiler"]; }; [>use compiler (NOT processor) capabilities to determine optimization flags
      # optimization_by_cpu = { configureFlags = ["--enable-optimization-by-cpu"]; };          [>use processor capabilities to determine optimization flags

      # I think the default is ok
      # mmx =              edf { name = "mmx"; };                           #enable MMX support (default=auto)
      #sse =               edf { name = "sse"; };                            #enable SSE support (default=auto)
      #dynsimd =           edf { name = "dynsimd"; };                        #enable dynamic SIMD selection (default=no)
      #optimize =          edf { name = "optimize"; };                       #ask the compiler for its best optimizations
      #resize =            edf { name = "resize"; };                         #enable buffer resizing feature
      #ensure_mlock =      edf { name = "ensure-mlock"; };                   #fail if unable to lock memory
      #debug =             edf { name = "debug"; };                          #enable debugging messages in jackd and libjack
      #preemption_check =  edf { name = "preemption-check"; };               #
    cfg = {
      posix_shmSupport = true;
      timestampsSupport = true;
      alsaSupport = true;
    };
    name = "jack-0.103.0";
    src = args.fetchurl {
      url = "mirror://sourceforge/jackit/jack-audio-connection-kit-0.109.2.tar.gz";
      sha256 = "1m5z8dzalqspsa63pkcgyns0cvh0kqwhb9g1ivcwvnz0bc7ag9r7";
    };
    meta = {
      description = "jack audio connection kit";
      homepage = "http://jackaudio.org";
      license = "GPL";
    };
    };
}