Re: [Boost-build] Migrating autotools driven project to BB2

From: Mateusz Loskot (mateusz_at_[hidden])
Date: 2007-01-01 09:13:05

Jorge Suit Perez Ronda wrote:
>> I think it's a good base to extend and customize, so I'm going to
>> use it for my further experiments. For now, I post it as config.jam
>> file into my SVN playground:
>> 
>> http://mloskot.devjavu.com/projects/mloskot/browser/trunk/boost/build/config.jam
>> 
>> 
>> I hope you don't mind, do you?
> 
> 
> for me is OK, I will update config.jam from that repository, also if
> I had any changes I'll ask you about how to merge it.

OK, if this utility won't get into the Boost.Build, I keep it there.

>> BTW, do you have any plans to extend and publish your module
>> somewhere?
> 
> what would be nice is that config.jam be accepted and enhanced by the
>  Boost-Build community, any comment from the experts would be
> helpful.

Yes, that would be great.

Back to the config.jam, are you going to keep file-base only configuration?
I mean config <pkg> specified in your prj-config.jam.

Next step I'd like to achieve is to externalize --with-<pkg> options.
I also wonder if it's possible to have those options printable from
bjam, for instance when user runs

bjam --help config

then all options supported by particular project would be generated
dynamically based on prj-config.jam and printed:

In your case it would output:

--with-gsl
--with-cholmod
--enable-dbdrivers
--with-unixodbc
--with-pgsql
--with-mysql
--with-bz2

+ some descriptions.

Definition in file like prj-config.jam could be used to control "What
options are supported by the project".
Next, options are passed in bjam's command line.

For now, I only know how to check if given options was passed to bjam
in command line:

if ( --with-$(pkg) in [ modules.peek : ARGV ] )
{
   # option passed, check if $(pkg) is supported and configure it
}

It's nothing serious, just experimenting after 2 days of Jaming.

Any comments?

Cheers
-- 
Mateusz Loskot
http://mateusz.loskot.net