cmake HAVE_EXTATTR_GET_FILE examples

libarchive/libarchive CMakeLists.txt :1861 

CHECK_FUNCTION_EXISTS(extattr_get_file HAVE_EXTATTR_GET_FILE)

bareos/bareos core/cmake/BareosCheckFunctions.cmake :30 

check_function_exists(extattr_get_file HAVE_EXTATTR_GET_FILE)