> Hello,

Thanks for the patch review!

>> +       #:make-flags (list "CC=gcc"
>> +                          (string-append "PREFIX=" %output)
>> +                          (string-append "RPM_BUILD_ROOT=" %output))
>
> Hard-coding CC variable this way prevents cross-compilation.

Oops, I overlooked that.

> If you run:
>
> --8<---------------cut here---------------start------------->8---
> ./pre-inst-env guix build maradns --target=aarch64-linux-gnu --target=aarch64-linux-gnu
> --8<---------------cut here---------------end--------------->8---
>
> you will obtain a native version of the binaries. Something like that
> would work better:
>
> --8<---------------cut here---------------start------------->8---
> (string-append "CC=" (if target
>                           (string-append (assoc-ref %build-inputs "cross-gcc")
>                                          "/bin/" target "-gcc")
>                           "gcc"))
> --8<---------------cut here---------------end--------------->8---

Sure, I'll fix this. Any other changes?

> As this is a recurrent problem we may need to put this snippet into a
> gnu-build-system function?

I think that's a good idea. The build phase of the gnu-build-system
should include this snippet.