Re: cross-compiling alternatives (was Re: [PATCH 0/1] Embedded Maintainer(s)...)

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On Thu, 12 Jun 2008, David Woodhouse wrote:
> On Thu, 2008-06-12 at 11:28 -0500, Bill Gatliff wrote:
> > > If you opt to cross-compile, having to deal with those
> > > sorts of things is the price you pay.
> > 
> > If the build system derives from autoconf, then a hacked-up config.cache (or
> > equivalent command-line args) often solves problems for me.  Just give the cache
> > the answers that it would otherwise have to get by running code on the target
> > machine.
> > 
> > That's how emdebian is doing a bunch of their stuff, and I have to admit that it
> > works pretty darned well.  It's also handy for configuration management, since
> > the cache file itself is plaintext and therefore svn/git/bzr/cvs/...-friendly.
> 
> Yeah, I was building Red Hat Linux packages for sh3 many years ago,
> using tricks like that. But there was always _something_ else going
> wrong, however much you hacked around it. And a lot of it would only
> turn up at runtime, not build time. I would never consider shipping a
> product with a large number of userspace packages cross-compiled.
> 
> For minimal file systems with a select handful of tools which can be
> tested exhaustively, it's not so bad. But for any 'full-featured'
> userspace, I think cross-compilation is completely insane.

So, how does OpenWRT manage to survive?

With kind regards,

Geert Uytterhoeven
Software Architect

Sony Techsoft Centre
The Corporate Village · Da Vincilaan 7-D1 · B-1935 Zaventem · Belgium

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