[notmuch] [PATCH] Build and link against notmuch shared library

[bgamari.foss]

Excerpts from Ingmar Vanhassel's message of Fri Jan 22 21:06:00 -0500 2010:
> On Sat, 23 Jan 2010 02:58:53 +0200, Felipe Contreras <felipe.contreras at gmail.com> wrote:
> > Does it need to be CXX? Why not CC instead?
> 
> Xapian and the notmuch wrapper 'parts' are written in C++.
> 
True, but I don't think that this means that we need to link the
executable with a C++ compiler. I've tried linking with CC and it seems
to succeed, so I don't think there should be a problem changing it.

- Ben