cmake GDCM_HAVE_GETTIMEOFDAY examples

malaterre/GDCM Source/Common/CMakeLists.txt :52 

CHECK_SYMBOL_EXISTS(gettimeofday "sys/time.h" GDCM_HAVE_GETTIMEOFDAY)

InsightSoftwareConsortium/ITK Modules/ThirdParty/GDCM/src/gdcm/Source/Common/CMakeLists.txt :52 

CHECK_SYMBOL_EXISTS(gettimeofday "sys/time.h" GDCM_HAVE_GETTIMEOFDAY)