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
)

add_definitions(-DHAVE_CORETEXT)