Re: [Discuss-gnuradio] Build Configuration Q

[Eric Blossom]

On Thu, Jan 17, 2008 at 01:35:50PM -0500, Michael Dickens wrote:
> On Jan 17, 2008, at 1:14 PM, Eric Blossom wrote:
>> Michael, this is ticket:186, "Add option to disable intree
>> dependencies", aka the "pkgsrc enhancement".  Right now it's not
>> possible.
>
> OK.  Good to know it's in the queue somewhere.  Any idea how difficult this 
> would be to implement?  Any hints on getting started?  I'm writing a paper 
> right now that's due Feb 1, and need some alternative-activity time every 
> so often, and if I could figure out what to do it would "kill multiple 
> birds with one stone" as the saying sort of goes. - MLD

I think the first thing is to decide how you want it to behave, and
what configure time options you'd want.

I want to maintain the current behavior as the default, as it allows
us to robustly test in the build tree prior to installing using make
check.

You should think carefully about how you want linking and "make check"
to work in the case where you're pulling some stuff from the build
tree and some from the installed location.  How are you going to
specify which libraries are loaded from which locations, etc?

Finally, I'd worry about how to implement this so that it's clean and
transparent to 95% of the code.  That is, find a way to hide the hair
in one or two places.  Makefile.common might be one of them.

Good luck on the paper, and "killing multiple birds".

Eric