cmake _HAVE_VASPRINTF examples

Kitware/VTK ThirdParty/hdf5/vtkhdf5/config/cmake_ext_mod/ConfigureChecks.cmake :462

CHECK_FUNCTION_EXISTS (vasprintf         ${HDF_PREFIX}_HAVE_VASPRINTF)

HDFGroup/hdf5 config/ConfigureChecks.cmake :439

CHECK_FUNCTION_EXISTS (vasprintf         ${HDF_PREFIX}_HAVE_VASPRINTF)

InsightSoftwareConsortium/ITK Modules/ThirdParty/HDF5/src/itkhdf5/config/cmake/ConfigureChecks.cmake :425

CHECK_FUNCTION_EXISTS (vasprintf         ${HDF_PREFIX}_HAVE_VASPRINTF)

Tencent/Forward source/third_party/hdf5/config/cmake_ext_mod/ConfigureChecks.cmake :530

CHECK_FUNCTION_EXISTS (vasprintf         ${HDF_PREFIX}_HAVE_VASPRINTF)