[libvirt] [PATCH 2/2 V2] cleanup: make several interface functions commonly available

[Eric Blake]

On 06/21/2011 06:05 PM, Stefan Berger wrote:
> In a second cleanup step this patch makes several interface functions
> from macvtap.c commonly available by moving them into interface.c and
> prefixing their names with 'iface'. 

> ---
>  src/libvirt_private.syms |    8 
>  src/util/interface.c     |  609 +++++++++++++++++++++++++++++++++++++++++++++++
>  src/util/interface.h     |   37 ++
>  src/util/macvtap.c       |  495 --------------------------------------
>  4 files changed, 663 insertions(+), 486 deletions(-)

Unfortunately, this breaks things when compiling on RHEL 5.  There,
macvtap.c was not compiled, but interface.c is compiled, and I'm now
getting errors like this:

util/interface.c: In function 'ifaceMacvtapLinkAdd':
util/interface.c:538: warning: assignment makes pointer from integer
without a cast
util/interface.c:557: error: 'IFLA_LINKINJFO' undeclared (first use in
this function)
...

We need some preprocessor conditionals to filter out these functions
when support is lacking.

-- 
Eric Blake   eblake at redhat.com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org

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