Problem: When running jam after ./configure I got alot of ...failed C++ ./out/linuxx86/src/client/gui/..... type errors
Diagnostics: (With the help of acraig) found that CS didn\'t install all the files that are needed.
Solution: instead of puting export CRYSTAL=/usr/local/crystal i put export CRYSTAL=/path/to/CS
Hope this helps.
-Robbie