Hi Ludo,

Ludovic Courtès <ludo@gnu.org> writes:

> Note: #:target must be a “GNU triplet” like “arm-linux-gnueabihf”, not
> a system type like “i686-linux”.

Thanks, is 'nix-system->gnu-triplet' the suggested way of obtaining the
triplet for a system?

> That’s because the Guile used here comes from the #:guile-for-build
> parameter.
>
> So the caller is responsible for doing the right thing here.  In fact,
> if you do:
>
>   (lower-gexp exp #:system whatever #:guile-for-build #f)
>
> it will automatically take care of computing the right Guile for this
> system.  For consistency, I don’t think we should change the default,
> though.
>
> WDYT?

Changing it to the following:

#+BEGIN_SRC scheme
(lower-gexp exp
            #:system "i686-linux"
            #:target "i686-unknown-linux-gnu"
            #:guile-for-build #f)
#+END_SRC

The Guile used is still a 64-bit LSB executable. Similarly, the
<operating-system> that's ungexp'd has a profile containing x86_64
executables.