cmake HAVE_ATEXIT examples

gridlab-d/gridlab-d cmake/CheckDependencies.cmake :48 

CHECK_FUNCTION_EXISTS(atexit HAVE_ATEXIT)

organicmaps/organicmaps 3party/harfbuzz/CMakeLists.txt :32 

target_compile_definitions(${PROJECT_NAME}
  PRIVATE
    HAVE_FREETYPE=1
    # TODO: Enable later if necessary, and sync with xcode/harfbuzz project.
    #HAVE_ICU
    #$<$<BOOL:${APPLE}>:HAVE_CORETEXT>
    HAVE_ATEXIT
    HAVE_GETPAGESIZE
    HAVE_MPROTECT
    HAVE_SYSCONF
)

gccxml/gccxml GCC/config_cmake/CMakeLists.txt :206 

CHECK_FUNCTION_EXISTS(atexit HAVE_ATEXIT)