cmake _HAVE_RANDOM examples

InsightSoftwareConsortium/ITK Modules/ThirdParty/HDF5/src/itkhdf5/config/cmake/ConfigureChecks.cmake :417 

CHECK_FUNCTION_EXISTS (random            ${HDF_PREFIX}_HAVE_RANDOM)

Tencent/Forward source/third_party/hdf5/config/cmake_ext_mod/ConfigureChecks.cmake :508 

CHECK_FUNCTION_EXISTS (random            ${HDF_PREFIX}_HAVE_RANDOM)

Kitware/VTK ThirdParty/hdf5/vtkhdf5/config/cmake_ext_mod/ConfigureChecks.cmake :450 

CHECK_FUNCTION_EXISTS (random            ${HDF_PREFIX}_HAVE_RANDOM)