Not clear how to use non-standard boost install path


I wanted to point out that it took me some while to figure out to use a non-standard install path for boost. Before the cmake changes this was a lot easier.

What did I do:
ccmake -DBOOST_ROOT=/home/fiep/programs/boost_1_38_0/install/ ..

This however did not change the Boost include paths as expected.
I still had to toggle the advanced mode to set all boost paths correctly.