On Thu, 21 Apr 2011 08:16:38 -0700 (PDT), gma <me@gabeanzelini.com> wrote:
> While attempting to make the 0.5 tarball on my Mac OS X system, I get:

What version of OSX?

> emacs/notmuch.el:55:1:Error: Cannot open load file: json
> make: *** [emacs/notmuch.elc] Error 1

Probably a problem with the emacs version. Leopard, at least, ships with
emacs22 in /usr/bin. I think Snow Leopard too. You have to install
Emacs23 either via macports/homebrew or, what I did, from here:

http://emacsformacosx.com/

Then compile with the appropriate `EMACS=` info.

Best,
Jesse