cmake HAVE_EXTATTR_GET_LINK examples

libarchive/libarchive CMakeLists.txt :1862 

CHECK_FUNCTION_EXISTS(extattr_get_link HAVE_EXTATTR_GET_LINK)

bareos/bareos core/cmake/BareosCheckFunctions.cmake :31 

check_function_exists(extattr_get_link HAVE_EXTATTR_GET_LINK)