cmake HAVE_MALLOC_SIZE examples

alibaba/AliSQL storage/tokudb/ft-index/cmake_modules/TokuFeatureDetection.cmake :65 

check_function_exists(malloc_size HAVE_MALLOC_SIZE)

percona/PerconaFT cmake_modules/TokuFeatureDetection.cmake :66 

check_function_exists(malloc_size HAVE_MALLOC_SIZE)

oscarlab/betrfs cmake_modules/TokuFeatureDetection.cmake :70 

check_function_exists(malloc_size HAVE_MALLOC_SIZE)