Forcing dylib builds

[Dethe Elza]

Hi folks,

I've been struggling to get the programming language Io fully  
installed on my system.  Io recommends MacPorts for installing  
dependencies and mostly that has been working for me.  A couple of  
things which didn't work are avcodec (part of ffmpeg) and  
libSoundTouch.  Both of these install from MacPorts OK, but they only  
have .a and .la files, while Io requires .dylib files.

Is there anything I can pass in to make the port build dynamic  
libraries, or do I need to edit the portfile?  And if I have to edit  
the port, are they cached locally or do I need to set up a local  
portfile repository?

I'm running OS X (10.4.8, Intel) and have uninstalled all ports and  
reinstalled just the ones needed for Io (I had a lot of very out-of- 
date ports and wanted to start with a clean slate).  I'm running the  
latest version of MacPorts.  If there's any further info needed, let  
me know.

--Dethe

This [the adoption of open source software] isn't just my idea, or  
Brazil's idea. It's the idea of our time. The complexity of our times  
demands it." --Gilberto Gil, Brazilian Minister of Culture