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Re: Passing an argument to configure script of subproject

From: Ralf Wildenhues
Subject: Re: Passing an argument to configure script of subproject
Date: Thu, 3 Jun 2010 12:51:44 +0200
User-agent: Mutt/1.5.20 (2009-10-28)


* Richard Ash wrote on Wed, Jun 02, 2010 at 10:14:42PM CEST:
> On Wed, 2010-05-26 at 23:43 +0200, ithilgore wrote:
> > The problem is that in order to share libfoo between the two projects (that
> > is both can fetch it as an external svn object), projectA needs to pass a
> > certain flag to the configure script of libfoo. This flag/argument would be
> > something like --disable-bar where bar is something that projectA doesn't
> > have (It's actually another library that can be optionally linked with
> > libfoo but is by default linked with and needed by projectB)
> > 
> > The question is: How can you pass an optional argument to the configure
> > script of libfoo by projectA? This argument should be passed externally
> > only by projectA so the solution of using "configure.gnu" residing inside
> > libfoo wouldn't work because that way projectB would then call it too
> > (since libfoo should be a shared svn object between the two projects).

One solution which comes to mind is


  ac_sub_configure_args="$ac_sub_configure_args --disable-bar"

and projectA/foo-proxy/foo/ contains libfoo.

Another would be to add another, second argument (only from projectA,
but not from projectB) which distinguishes it, so a configure.gnu could
resolve that.

> > projectA uses a with a AC_CONFIG_SUBDIRS directive to call the
> > configure script of libfoo. projectB does the same too.

Well, the essence is that if A and B differ in some respects, then you
can transport that difference down, no?

Hope that helps.


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