[bug#40767] [PATCH] gnu: Add maradns.

[Efraim Flashner]

On Wed, Apr 22, 2020 at 03:49:32PM +0200, Mathieu Othacehe wrote:
> 
> Hello,
> 
> > +       #:make-flags (list "CC=gcc"
> > +                          (string-append "PREFIX=" %output)
> > +                          (string-append "RPM_BUILD_ROOT=" %output))
> 
> Hard-coding CC variable this way prevents cross-compilation. 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---
> 
> As this is a recurrent problem we may need to put this snippet into a
> gnu-build-system function?
> 
> Thanks,
> 
> Mathieu

would (which "gcc") work when cross compiling?

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