For cmake NOT qmake, see Xenoncat's solver integrated into nheqminer - #175 by root for BOOST_ROOT.
For BOOST_LIBRARYDIR, you’ll need to locate the include dir where boost subdir is present.
Altogether you’d exec:
$ BOOST_ROOT=[lib dir where libboost_* is present] BOOST_LIBRARY=[include dir where boost subdir is present] cmake ..
$ BOOST_ROOT=[lib dir where libboost_* is present] BOOST_LIBRARY=[include dir where boost subdir is present] make