[CMake] Specifying search path for FIND_PACKAGE

[Amit Ramesh]

Hi,

     Is there a uniform way to specify the paths that FIND_PACKAGE  
uses to search for installed packages. On Mac OS X, Fink is a popular  
mechanism to install unix ports, and they get installed in the /sw by  
default. However, cmake does not seem to include this in its search  
and so does not find an existing package. Is there a good way to  
include this in a package independent manner?

Thanks!
Amit