Re: [gentoo-dev] Replacing cpu-feature USE flags

[Ned Ludd <solar@gentoo.org>]

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On Thu, 2006-07-06 at 17:09 +0200, Simon Stelling wrote:
> Ciaran McCreesh wrote:
> > You can do it through bashrc. But then, if this is about working around
> > Portage's annoying lack of sane cross compile handling, why not put a
> > little effort into fixing it properly rather than a lot of effort into
> > making the tree more complicated?
> 
> Err, I think you're mixing up different things. 


> How should portage be 
> able to do sane cross compiling if you control the instruction sets 
> through use flags which are blocked in profiles the build system is 
> using? 

That is not the case anymore.. See PORTAGE_CONFIGROOT= and the
attachment as an example which solves this exact problem.

-- 
Ned Ludd <solar@gentoo.org>
Gentoo Linux

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export PORTDIR=$(portageq envvar PORTDIR)
export ROOT=/dev/shm/blah
export PORTAGE_CONFIGROOT=${ROOT}
PROFILES="$(grep ^[a-z,0-9] ${PORTDIR}/profiles/profiles.desc | awk '{print $2}' | sort -u)"

mkdir -p ${PORTAGE_CONFIGROOT}/etc/
cd ${PORTAGE_CONFIGROOT}/etc/
for p in ${PROFILES}; do
	rm -f make.profile
	ln -s ../../../../${PORTDIR}/profiles/${p} make.profile
	touch make.conf
	ls -ld $(readlink -f make.profile)
	emerge --info
done