[Buildroot] Libtool work: a tentative summary

[Thomas Petazzoni <thomas.petazzoni@free-electrons.com>]

Hello Paulius,

On Wed, 29 Sep 2010 11:32:29 +0300
Paulius Zaleckas <paulius.zaleckas@gmail.com> wrote:

> I would go for a conservative solution.
> The main reason here is compile speed.
> Currently my configuration takes ~1 hour to compile on my 4x3.4GHz
> machine with DDR3 RAM...

Are you using internal toolchain or external toolchain ?

> The worst part here is that autoreconfigure and ./configure scripts doesn't
> scale on multicore CPU :(
> So adding a lot more autoreconfigure usage would drastically reduce
> build time.

Thanks for your feedback.

For what it's worth, I've started to experiment the modification of our
package infrastructure in order to use real file targets instead of
phony targets for the steps sequencing (download -> extract -> patch ->
configure, etc.). This is one of the requirements to be able to do
top-level parallel builds, which I think, definitely becomes necessary
to parallelize the autoreconf/configure steps of packages. This is
however a lot of work, and I don't expect this to be ready anytime soon.

Regards,

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com