Errors in build gnuradio-3.1.2

Type ‘cd’ into the gnuradio directory, after ./configure command on
Ubuntu
8.04, The following components were not built successfully :
gr-audio-jack/gr-audio-portaudio/gr-comedi/gr-wxgui/gr-utils

The prompt message is like this:
checking for JACK… no
gr-audio-jack requires package jack, not found.
configure: error: Component gr-audio-jack has errors; stopping.

I know the reason is that the compiler can’t find the unpassed
components,
but I want to know where can I find or download them?

On Mon, 2008-09-01 at 18:30 +0800, Su Jinzhao wrote:

components, but I want to know where can I find or download them?
The package names vary across distributions, so “requires package jack”
is only a hint. On Ubuntu 8.04 try libjack-dev.

There should be similar configure messages for gr-wxgui and gr-utils,
and some good clues in here:
http://gnuradio.org/trac/wiki/UbuntuInstall

jim