I've done this before, I just can not recall what I did.

Running the cmake application (GUI, not command line).  I need cmake to 
include /opt/local/bin in the search path.  In this instance, the make 
file is running FindBISON, but there are other dependencies that I will 
come to once I get past this one.

My search path for the shell does include /opt/local/bin, which is 
where Mac Ports puts the version of Bison that I need.

Last time I did this, I also needed to adjust Xcode to use /opt as 
well.  My recollection on that was that I altered the package.

Any clues would be appreciated.

-- 
John Holt