[libvirt] [PATCH v2] Check for link_addr more thoroughly

[Eric Blake]

On 07/18/2013 03:11 AM, Guido Günther wrote:
> Some versions of kFreeBSD (like 9.0) declare link_addr in a header
> but lack an implementation. This makes ./configure pass but breaks
> compilation later with a
> 
>      undefined reference to `link_addr'
> 
> Althought that's a bug in the OS header we can detect it easily by also
> trying to link.
> 
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=715320
> ---
> Changes from v1:
> 
>     Use AC_LINK_IFELSE instead of AC_TRY_LINK

Thanks; ACK.

> 
> I used AC_TRY_LINK since it's used in other places in configure.ac.
> Should these be converted too?

Sure, that's a reasonable cleanup, but as a separate patch.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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