Re: [gentoo-embedded] Cross Dev Tricks + Hardened questions

[Shinkan <shinkan@gmail.com>]

[-- Attachment #1: Type: text/plain, Size: 1925 bytes --]

2009/11/30 Peter Stuge <peter@stuge.se>

>
> USE CATALYST!
>
> To do this you will create stage2, stage3 and stage4 spec files
> (maybe also stage1, I'm not sure on that) for catalyst. It can
> produce exactly what you want.
>
> Fine, I believe this would be controlled by USE flags for stage2 and
> up.
>
> Please just start playing with the catalyst examples. I hope you will
> quickly learn what they produce.
>

I already looked a lot into Catalyst but some points doesn't fit to my plans
:
- I have to use a profile if I want to specify things (for instance ports
version) for base stage. I really don't want to build a profile because
they're hard to maintain in a wide use scheme, and because that's overkill.
- Catatalyst seems to build by substraction (I mean on livecd, it builds
from a stage3, then unmerges and removes things). I want to build with
additive steps (from nothing).
- I want to be able to just emerge one new port or update one on a target,
and with Catalyst I cant. I must rebuild all (yeah, cache is there but...),
and I really need to build just one port on some cases.

That's why I thought about a "build" directory built from my host with
crossdev. Then I use this build env to build my target with gcc/libc I want.
If I have to build just one port, I can use my build env for this target
again.
Since I choose what to build from nothing, I don't have to use profile to
define what I put in my target or build. I don't break system by removing
things.
My build standard "make.conf" serves as usual, I have nothing more than a
crossdev, a make.conf filling, and some emerge to a given root.

That's what I want, but I don't know how to achieve this.
If Catalyst can offer me this control, I would be glad to use it.


-- 
Pierre.
"Sometimes when I'm talking, my words can't keep up with my thoughts. I
wonder why we think faster than we speak. Probably so we can think twice." -
Bill Watterson

[-- Attachment #2: Type: text/html, Size: 2461 bytes --]