Help with QT-based port?

[Craig Treleaven]

Hi:

I've run into a wall trying to port MythTV.  The linker barfs complaining:
>ld: -L must be immediately followed by a directory path (no space)

Debug-level log from my most recent attempt is here:
http://dl.dropbox.com/u/26787680/0.25%20macports%20build%20fail%202012Mar28.txt

Portfile in development* is here:
http://dl.dropbox.com/u/26787680/Portfile

There are currently two building systems for Myth on Mac.  First, a 
perl script has been in place for several years and is regularly 
maintained by the Myth devs.  See oxs-packager.pl at:
https://github.com/MythTV/packaging/tree/master/OSX/build

Second, Myth also has a buildbot network set up including a Mac OS X 
slave.  See:
http://code.mythtv.org/buildbot/builders/master-osx-snow-leopard

The buildbot shows quite clearly the environment variables and 
parameters passed to mythtv/config.  Both systems build using the 
MythTV code straight from GitHub--no patching.   I've spent a lot of 
time poring over that and the osx-packager.pl script but I can't come 
up with a combination of parameters that ends up with a happy linker.

Myth uses Nokia's QT stuff so qmake is getting called in there.  One 
difference is that both the buildbot and osx-packager.pl are using QT 
4.6.3 whereas I've used MacPorts qt4-mac which is at 4.7.4.  Could 
this be my problem?

I've asked for help on the MythTV-dev list but the most active 
contributor to the Mac port is busy on other things and unwilling to 
spend any time on this.

Any suggestions gratefully welcomed!

Thanks,

Craig

*Needs qt4-mac +mysql5.  Takes 1 hour plus to build the dependencies 
on my quad-core MBP.