From: Thomas Schwinge <thomas@schwinge.name>
To: Carl Worth <cworth@cworth.org>, notmuch@notmuchmail.org
Subject: Re: Build system
In-Reply-To: <87aaiilk2o.fsf@yoom.home.cworth.org>
References: <1294747284-18791-1-git-send-email-thomas@schwinge.name>
	<87bp30n3sc.fsf@yoom.home.cworth.org>
	<87lj22pun9.fsf@kepler.schwinge.homeip.net>
	<87bp2yptxj.fsf@kepler.schwinge.homeip.net>
	<87aaiilk2o.fsf@yoom.home.cworth.org>
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Date: Tue, 08 Feb 2011 09:55:57 +0100
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Hallo!

On Sun, 30 Jan 2011 21:14:39 +1000, Carl Worth <cworth@cworth.org> wrote:
> On Sun, 30 Jan 2011 11:28:08 +0100, Thomas Schwinge <thomas@schwinge.name=
> wrote:
> > Still, my point holds that (unless someone is willing to spend time on
> > this, of course) we shouldn't try to replicate the Autotools, but inste=
ad
> > keep our system as simple as it currently is, and thus just have it fail
> > if configured outside of the source tree.
>=20
> Oh, I agree that if we don't support this then we should give the user a
> nice error message. But I think it will actually be very easy to add
> support for this. (And at this point, I think the notmuch build system
> is something that other projects could emulate if they want. I don't
> think it's too crazt).

Is the testsuite also easy to convert to VPATH style builds?  (I don't
know, but would expect some difficulties.)


And, another thing I just noticed: I had the source tree configured with
=2D-prefix=3D[something].  Now I updated the sources, re-ran make, and saw
this:

    $ make
=20=20=20=20
    Note: Calling ./configure with no command-line arguments. This is often=
 fine,
          but if you want to specify any arguments (such as an alternate pr=
efix
          into which to install), call ./configure explicitly and then make=
 again.
          See "./configure --help" for more details.
=20=20=20=20
    ./configure
    Welcome to Notmuch, a system for indexing, searching and tagging your e=
mail.
    [...]

My --prefix=3D[something] is gone.  (At least the build system warns about
this.)  But it's another issue that other build systems already have
solved.  (And, I probably wouldn't have expected that to do the right
thing if the configure script / build system wouldn't try to be like GNU
Autoconf.)


Gr=C3=BC=C3=9Fe,
 Thomas

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