cmake _HAVE_ALARM examples

Kitware/VTK ThirdParty/hdf5/vtkhdf5/config/cmake_ext_mod/ConfigureChecks.cmake :439 

CHECK_FUNCTION_EXISTS (alarm             ${HDF_PREFIX}_HAVE_ALARM)

HDFGroup/hdf5 config/ConfigureChecks.cmake :421 

CHECK_FUNCTION_EXISTS (alarm             ${HDF_PREFIX}_HAVE_ALARM)

InsightSoftwareConsortium/ITK Modules/ThirdParty/HDF5/src/itkhdf5/config/cmake/ConfigureChecks.cmake :406 

CHECK_FUNCTION_EXISTS (alarm             ${HDF_PREFIX}_HAVE_ALARM)

Tencent/Forward source/third_party/hdf5/config/cmake_ext_mod/ConfigureChecks.cmake :490 

CHECK_FUNCTION_EXISTS (alarm             ${HDF_PREFIX}_HAVE_ALARM)