cmake HAVE_IOMANIP examples

FreeCAD/FreeCAD cMake/ConfigureChecks.cmake :21 

check_include_file_cxx(iomanip HAVE_IOMANIP)

mantidproject/mantid Framework/Geometry/CMakeLists.txt :438 

add_definitions(-DHAVE_IOSTREAM -DHAVE_LIMITS -DHAVE_IOMANIP)