- add Macport's include dir to 'C_INCLUDE_PATH' if OS == Darwin - add Macport's library dir to 'LIBRARY_PATH' if OS == Darwin - both is a hack for X11 includes and libraries
- add Macport's include dir to 'C_INCLUDE_PATH' if OS == Darwin - add Macport's library dir to 'LIBRARY_PATH' if OS == Darwin - both is a hack for X11 includes and libraries