@c This is part of GNU tar manual. @c Copyright 1992--2021 Free Software Foundation, Inc. @c See file tar.texi for copying conditions. @macro GNUTAR @acronym{GNU} @command{tar} @end macro @macro xopindex{option,text} @opindex \option\@r{, \text\} @end macro @macro opsummary{option} @ifclear ANCHOR--\option\ @set ANCHOR--\option\ 1 @anchor{--\option\} @end ifclear @xopindex{\option\, summary} @end macro