[CMake] Automatic out of source build's possible?

[Martin O'Brien]

I've resisted the urge to patch, since I really don't want to be dependent
on a custom version of CMake.

As far as how many people would like it, I don't know, but my guess would be
that most who were more familiar with configure or really anything that
Getopt long-ish than CMake would probably find it more familiar.


What I've done in the past in a few cases where people complained mightily
(as well as pretty unreasonably, as this is hardly end of the world) was:

-DCONFIGOPTS="--enable-<whatever> --verbose --debug..."

AND/OR

-DCONFIGOPTSFILE=<somefile which contained options, one per line>

And then parse that/those (using a cmake module).  Very ugly, but they could
usually handle that with much less complaining, and it also prevented
potential conflicts with cmake '--' options.


mm

-----Original Message-----
From: cmake-bounces at cmake.org [mailto:cmake-bounces at cmake.org] On Behalf Of
Eric Noulard
Sent: Tuesday, February 08, 2011 3:44 AM
To: Michael Wild
Cc: cmake at cmake.org
Subject: Re: [CMake] Automatic out of source build's possible?

2011/2/8 Michael Wild <themiwi at gmail.com>:
> And there's the hidden trap that the -D options must be *before* the -P
> option. Very nasty, especially for people who never used CMake before.

Yes right I was caught by that in the past.

> On 02/08/2011 09:27 AM, Martin O'Brien wrote:
>> Absolutely, and that is what I do in some cases, but in the particular
case
>> that I described - which is what I had in mind; I should have been
clearer -
>> it doesn't help, as it's still -D... syntax.

Ok then may be you can propose a patch for some generic

--enable-<XXXX>
--disable-<XXXX>

cmake command line option that will be automatically translated to

-DXXXX=ON

seems do-able.
I don't know if many people would like it ?
-- 
Erk
Membre de l'April - « promouvoir et défendre le logiciel libre » -
http://www.april.org
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