[Buildroot] [UNSURE]Re: autoconf caching

François Perrad francois.perrad at gadz.org
Sun Jun 8 08:19:13 UTC 2014

2014-06-07 11:04 GMT+02:00 Thomas Petazzoni
<thomas.petazzoni at free-electrons.com>:
> Dear Dallas Clement,
> On Fri, 6 Jun 2014 11:14:15 -0500, Dallas Clement wrote:
>> Hi Thomas.  Thanks very much for looking at my configuration.  I think you
>> certainly nailed it.
>> I have a lot of packages, and perl and mysql especially are taking a long
>> time.  My build recipes
>> for both of these are a year or two out of date.  In fact, my perl recipe
>> is still using qemu to build
>> instead of perl cross.  Hopefully updating this recipe will help some,
>> though as you pointed out
>> it is still using MAKE1.
> Right. I'll send a separate e-mail to François Perrad about this (our
> Perl guy), because it seems like other build systems are building Perl
> in parallel.

The build of perl with qemu takes very very long time.
The build of perl with perl-cross takes the same time as Linux Kernel
for example.
Parallel build with perl-cross seems not supported (this needs a
confirmation of Alex Suykov, the author of perl-cross).


>> Yep, very speedy SSDs and 64 GB for RAM.  Because of all the serialization
>> in this build process,
>> building from a large ram disk seems to make little difference.
> Right. So you have a good build configuration, there's not much we can
> do here.
>> > There is another thing that strikes out in your configuration: there
>> > are many packages that we don't have in Buildroot, and that don't seem
>> > to be specific to your company or project. What about submitting your
>> > new packages upstream?
>> Yes, I can certainly do that.  There's a lot here.  Much of it is obscure.
>> Please let me know which ones you are most
>> interested in.
> Could you make a list of the packages that you've added, and that are
> open-source? I'm pretty sure a majority of them could potentially be
> useful to have in Buildroot.
> Best regards,
> Thomas
> --
> Thomas Petazzoni, CTO, Free Electrons
> Embedded Linux, Kernel and Android engineering
> http://free-electrons.com
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