cmake find_package(NO_SYSTEM_ENVIRONMENT_PATH) examples

CGAL/cgal Installation/cmake/modules/FindTBB.cmake :200 

find_package(TBB QUIET NO_MODULE NO_CMAKE_SYSTEM_PATH NO_SYSTEM_ENVIRONMENT_PATH)

analogdevicesinc/libiio CMakeLists.txt :571 

find_package(LibXml2 QUIET NO_MODULE NO_SYSTEM_ENVIRONMENT_PATH)