Re: Multiple subdirectories with non-similar configure needs

[Jim Galarowicz]

Hi Ralf,

Thanks for the reply!

On 03/29/2011 01:35 AM, Ralf Wildenhues wrote:
> Hello Jim,
>
> * Jim Galarowicz wrote on Mon, Mar 28, 2011 at 09:08:02PM CEST:
> > I was wondering if anyone can point me to any information on how to
> > configure from a top-level directory multiple sub-directories with
> > different configure requirements.
>
> Well, you can just write code yourself that calls the sub configure
> scripts with the arguments you intend for it.  Basically your own
> version of AC_CONFIG_SUBDIRS, if you like.
>
> GCC does this in its own tree (except the code is partly in the
> makefile, not only the toplevel configure script).
>
> For simple things, it often suffices to adjust $ac_configure_args during
> configure (beware of the eval quoting though!).
>
> However, you haven't written what kind of adjustments you need at all,
> so it's not clear how to help more.
>
> > My subdirectories are: libcbtf, libcbtf-xml, libcbtf-mrnet.  Each
> > subdirectory has different package requirements and has been set up
> > to use autoconf, automake, libtool, m4, etc..
>
> Wait.  If it's just about different package requirements, then you don't
> need to mess with toplevel at all.  All --with-* and
> --enable-*/--disable-* flags are passed down to each sub configure
> script.  Each of the configure scripts can just choose to adhere to the
> flags it knows, and ignore the rest, no?

I'll still need a configure at the top level in order to pass down the 
superset of all the options that the subdirectories will need, correct? 
  The top-level would have to have all the configuration settings that 
each of the lower level subdirectories would need to recognize and then 
each subdirectory configure can apply what it recognizes.

I will try this approach.

Thanks,
Jim G


> Cheers,
> Ralf