cmake BOOST_COMPUTE_HAVE_VTK examples

fabsig/GPBoost external_libs/compute/CMakeLists.txt :60 

option(BOOST_COMPUTE_HAVE_VTK "Have VTK" OFF)

Jackarain/proxy third_party/boost/libs/compute/CMakeLists.txt :110 

option(BOOST_COMPUTE_HAVE_VTK "Have VTK" OFF)