Build demos and tests only when BUILD_TESTING is defined.
Build demos and tests only when BUILD_TESTING is defined.

It's a built-in CMake variable defined by CTest module, see
http://www.vtk.org/Wiki/CMake/Testing_With_CTest

jcw/metakit,princeofdarkness76/metakit,jcw/metakit,princeofdarkness76/metakit,princeofdarkness76/metakit,colemancda/metakit,princeofdarkness76/metakit,colemancda/metakit,colemancda/metakit,colemancda/metakit,jcw/metakit,princeofdarkness76/metakit,jcw/metakit,jcw/metakit,colemancda/metakit