Scripts to help download, patch and compile cmake boost.
I also add a variable to check whether the import libraries have been added or not yet so that catkin doesn't try and add them twice (get fail trying to add the 'same' target).
In lib/Boost.cmake:
SET(Boost_IMPORT_TARGETS_ADDED TRUE)
In share/boost-1.47.0/cmake:
if(NOT Boost_IMPORT_TARGETS_ADDED) include("${CWD}/../../../lib//Boost.cmake") endif()