[gentoo-embedded] Re: Cross Wrappers

[Ned Ludd <solar@gentoo.org>]

On Sat, 2008-06-21 at 23:29 -0400, Mike Frysinger wrote:
> On Saturday 21 June 2008, Ned Ludd wrote:
> > Ok with how you have SYSROOT + ROOT + PORTAGE_CONFIG working I think
> > I've been able to come up with a decent set of cross compile wrappers
> > that should be usable by everybody for the ideal cross compile setups.
> > No more of the 'xmerge' foo. This should do it right.
> 
> for pkg-config, you may want to merge many of the things ive done here:
> http://blackfin.uclinux.org/gf/project/uclinux-dist/scmsvn/?action=browse&path=%2Ftrunk%2Ftools%2Fstaging-pkg-config&revision=5937&view=markup

Ok I snagged the error checking and QA check.

> for the configure tests, ive been meaning to investigate switching over to a 
> config.site rather than exporting them through the environment ...

I'll see what I can snag from here.
https://dev.openwrt.org/browser/trunk/include/site (hate traq)
Any tips/links to some others?

> you should change the shebang to #!/bin/bash for all of those since they arent 
> POSIX ... easier that way too

ok

> for the CHOST, how about checking $0 ?  so people can symlink like:
> x86_64-pc-linux-gnu-emerge and then they can just run that without 
> needing anything set in the 
> environment ... that's how i generally multiplex my cross scripts for 
> multiple targets.

I have it right now as emerge-CHOST. When you run emerge-wrapper --init
it sets up all the symlink love which would probably be run a
pkg_postinst(). I figured the logic there that CHOST-* should be mostly
reserved for the toolchain, plus it's easier for me to emerge-\t\t and
pull in the right wrapper foo for whatever I'm working on. 

> we could have crossdev manage the symlinks automatically as well so they get 
> the ...-emerge and ...-pkg-config by default.  and setup the 
> PORTAGE_CONFIGROOT too ...

Yep that's what it does. I'll move the pkg over to usr/share/crossdev/
Got a crossdev in cvs/svn some place so I can create a ./wrappers 
subdir?


> > I want you to review.. And then tell me if it should be apart of
> > crossdev or another pkg.
> 
> crossdev should be fine i think
> -mike

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