[Buildroot] Building For Host as Target

[Baruch Siach <baruch@tkos.co.il>]

Hi Assaf,

On Thu, May 03, 2012 at 06:14:49PM +0300, Assaf Inbal wrote:
> I'm working on a project based on buildroot and I want to have the ability
> to compile my packages for both my MIPS target using an external toolchain
> (which works great) but I also want to be able to compile for my host.
> To be precise, I want to use the local gcc and libraries so I will be able
> to run my packages locally as well.
> I've tried setting an external toolchain path as "/usr" but as a part of
> preparing the target file system everything from my /lib,/etc and others
> are copied to the output directory, which is, well, bad.
> 
> I've also toyed with creating a fake toolchain that was basically links to
> the host's binaries but that also didn't go very well.
> 
> Does anyone have an idea on how I might be able to achieve this?

It seems to me that the easiest way is to select either i386 or x86_64 as 
target architecture (assuming that your host is a PC, we have recently 
discovered that this is not always the case), and run the result in a chroot, 
or in a virtualized system, on your development host. For a ready made qemu 
example see board/qemu/x86/readme.txt.

baruch

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