cmake _HAVE_TM_GMTOFF examples

HDFGroup/hdf5 config/ConfigureChecks.cmake :374 

CHECK_STRUCT_HAS_MEMBER("struct tm" tm_gmtoff "time.h" ${HDF_PREFIX}_HAVE_TM_GMTOFF)

InsightSoftwareConsortium/ITK Modules/ThirdParty/HDF5/src/itkhdf5/config/cmake/ConfigureChecks.cmake :363 

CHECK_STRUCT_HAS_MEMBER("struct tm" tm_gmtoff "time.h" ${HDF_PREFIX}_HAVE_TM_GMTOFF)

Kitware/VTK ThirdParty/hdf5/vtkhdf5/config/cmake_ext_mod/ConfigureChecks.cmake :388 

CHECK_STRUCT_HAS_MEMBER("struct tm" tm_gmtoff "time.h" ${HDF_PREFIX}_HAVE_TM_GMTOFF)