Installed audio/alsa-plugins and dependencies

Hi,

I've got audio/alsa-plugins installed from a recent ports tree with 
default options, and its dependency list is a bit dubious.

8:04pm# cd /usr/ports/audio/alsa-plugins/
8:04pm# make -V LIB_DEPENDS_ALL
libasound.so:audio/alsa-lib libasound.so:audio/alsa-lib 
libavcodec.so:multimedia/ffmpeg libasound.so:audio/alsa-
lib libjack.so:audio/jack libasound.so:audio/alsa-lib 
libpulse.so:audio/pulseaudio libasound.so:audio/alsa-lib l
ibsamplerate.so:audio/libsamplerate libasound.so:audio/alsa-lib 
libspeexdsp.so:audio/speexdsp

But the installed package reports:
8:09pm# pkg info --dependencies alsa-plugins
alsa-plugins-1.2.7.1_3:
         alsa-lib-1.2.10_1

It appears to be missing the SUBPACKAGE dependencies. Is this 
intentional, or a bug?

Cheers.
-- 
Jonathan Chen <jonc@chen.org.nz>