cmake HAVE_CALLOC examples

SmartThingsCommunity/st-device-sdk-c test/framework/cmocka/ConfigureChecks.cmake :74 

check_function_exists(calloc HAVE_CALLOC)

gccxml/gccxml GCC/config_cmake/CMakeLists.txt :212 

CHECK_FUNCTION_EXISTS(calloc HAVE_CALLOC)

clibs/cmocka ConfigureChecks.cmake :77 

check_function_exists(calloc HAVE_CALLOC)

in-formant/in-formant external/libsamplerate/CMakeLists.txt :98 

check_function_exists(calloc HAVE_CALLOC)