Ardour2 Build Problem

[Rod Gallant]

Greetings,

I am attempting to build ardour2. It seems to have a dependency that is not created when its building
The following is  output

Checking for C header file /System/Library/Frameworks/CoreMIDI.framework/Headers/CoreMIDI.h... no
It appears you don't have the required MIDI libraries installed. For Linux this means you are missing the development package for ALSA libraries.
shell command " cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_audio_ardour2/work/ardour-2.8.2" && scons PREFIX=/opt/local VST=0 AUBIO=1 FREESOUND=1 LV2=0 " returned error 1
Error: Target org.macports.build returned: shell command failed
DEBUG: Backtrace: shell command failed
    while executing
"command_exec build"
    (procedure "portbuild::build_main" line 8)
    invoked from within
"$procedure $targetname"
Warning: the following items did not execute (for ardour2): org.macports.activate org.macports.build org.macports.destroot org.macports.install
Log for ardour2 is at: /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_ports_audio_ardour2/main.log
Error: Status 1 encountered during processing.

Any Ideas??

Thanks

Rod