# Is /usr/bin/etags severely out of date in Yosemite?

Is /usr/bin/etags severely out of date in Yosemite? If so, what is the easiest way to get an up-to-date version of etags, to use with Emacs from http://emacsformacosx.com/?

I am using:

GNU Emacs 24.4.1 (x86_64-apple-darwin13.4.0, NS apple-appkit-1265.21) of 2014-10-20 on builder10-9.porkrind.org.
Yosemite 10.10.1

Emacs from http://emacsformacosx.com/ comes with a recent etags:

$find /Applications/Emacs.app -name etags\* /Applications/Emacs.app/Contents/MacOS/bin-i386-10_5/etags /Applications/Emacs.app/Contents/MacOS/bin-powerpc-10_4/etags /Applications/Emacs.app/Contents/MacOS/bin-x86_64-10_5/etags /Applications/Emacs.app/Contents/MacOS/bin-x86_64-10_7/etags /Applications/Emacs.app/Contents/MacOS/bin-x86_64-10_9/etags [...]  It's the corresponding version to emacs: $ /Applications/Emacs.app/Contents/MacOS/bin-x86_64-10_9/etags --version
etags (GNU Emacs 24.4)
Copyright (C) 2014 Free Software Foundation, Inc.


Would using ctags from homebrew be a sufficient replacement? It is quite up to date (Exuberant Ctags 5.8) and trivial to install if you have Xcode already and then install the brew package manager. It's manual page clearly indicates that it works with Emacs.

• The man page for etags says "The etags program is used to create a tag table file, in a format understood by emacs(1); the ctags program is used to create a similar table in a format understood by vi(1). – Alan Wehmann Dec 16 '14 at 10:05
• @AlanWehmann The ctags package I recommended works with emacs. Try it, you'll like it. :-) – bmike Dec 16 '14 at 13:59

The reason why etags is out of date is that the emacs version installed on a Mac by default is also severely out of date.

Emacs comes with etags, so when you install emacs via homebrew, you get a recent etags. But I would expect that emacsforosx also comes with etags.

I assume that, if you look in the application folder, you will find etags somewhere there. Then it is only an issuer of calling this etags binary.

• I looked for an etags binary that might have come with emacsforosx. I didn't find one. – Alan Wehmann Dec 17 '14 at 16:59