Re: [Vala] Accessing build-time config from Vala (was: Vala-list Digest, Vol 26, Issue 8)

[Ali Sabil <ali sabil gmail com>]

On Wed, Jan 6, 2010 at 3:17 PM, Andrea Bolognani <eof kiyuko org> wrote:
> On Wed, Jan 06, 2010 at 10:56:32AM +0100, Frederik wrote:
>
> > golnaz nilieh wrote:
> > > Thanks to all. I defined an empty constructor for Global, and called it in
> > > main function. also I changed dataDir to a constant variable.
> > > But a new question: Is there a way to pass the installation path to dataDir?
> > > I use this macro in configure.ac:
> > >
> > > AC_PREFIX_DEFAULT(/usr/local)
> > >
> > > can i use it as a variable in a vala source file?
> >
> > Yes, all you need is a small vapi file for your 'config.h', e.g.:
> > http://code.google.com/p/xnoise/source/browse/vapi/config.vapi
> >
> > Use it with
> >
> >   --pkg config --vapidir path/to/my/vapi
> >
> > and access it via
> >
> >   Config.DATADIR
>
> I like this solution. Only, I can't seem to find a way to get DATADIR
> defined in config.h.
>
> Looking at xnoise, I was unable to find any obvious spot where the magic
> happens. Is that done by gnome-autogen? I have a custom autogen.sh. Or am
> I missing something hidden in plain sight?

You can find the explanation here:
http://www.gnu.org/software/autoconf/manual/html_node/Defining-Directories.html#Defining-Directories

--
Ali