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Subject: Re: [alpine-devel] Multi architecture support
From: Natanael Copa <natanael.copa@gmail.com>
To: Mark Constable <markc@renta.net>
Cc: alpine-devel@lists.alpinelinux.org
In-Reply-To: <4A713B06.9050101@renta.net>
References: <4A713B06.9050101@renta.net>
Content-Type: text/plain
Date: Thu, 30 Jul 2009 14:48:38 +0200
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On Thu, 2009-07-30 at 16:17 +1000, Mark Constable wrote:
> I see the default /etc/abuild.conf has CHOST=i486-alpine-linux-uclibc
> and there is no sign of a PKGBUILD arch=(i686 x86_64) equivalent so
> is there a recommended way to provide multiple archs from a single
> APKBUILD?
> 
> I guess using a different /etc/abuild.conf in each build environment
> would suffice but I thought I should check if there is some inbuilt
> method that is not documented yet.
> 
> I intend to build a subset of packages for i686, 

This is ok.

> x86_64, 

This should work, but I have never tried it. I think most APKBUILDs will
work too. Looking at Arch Linux it seems like most x86_64 bit specifics
are related to PIC, which we need anyway due to our hardened toolchain.

> arm8 and
> possibly ppc (ps3) eventually. 

Those would probably require cross-compiling. I think its possible but
it will probably require some redesign of abuild and extra things to
consider in APKBUILDs.

> I'd use separate chroots for i686
> and x86_64 and possibly use the ArchMobile qemu examle for arm8 as
> I have a Beagelboard begging for some TLC.

TLC?

I'm not familiar with ArchMobile. Does it cross-compile or native
compile in qemu? Native compile in qemu might work but is slow.

Btw, i use vserver for my development of x86. Its like an advanced
chroot.

> Sorry about the rush of newbie questions and many thanks for the
> responses.
> 
> --markc
> 
> 
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