netdev - Re: iproute2 won't compile without AF

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Date:   Tue, 19 Jun 2018 15:41:14 -0500
From:   Steve Wise <swise@...ngridcomputing.com>
To:     David Ahern <dsahern@...il.com>,
        Stephen Hemminger <stephen@...workplumber.org>
Cc:     netdev <netdev@...r.kernel.org>
Subject: Re: iproute2 won't compile without AF_VSOCK



On 6/19/2018 3:29 PM, David Ahern wrote:
> On 6/19/18 2:27 PM, David Ahern wrote:
>> On 6/19/18 9:47 AM, Stephen Hemminger wrote:
>>> On Tue, 19 Jun 2018 10:17:45 -0500
>>> Steve Wise <swise@...ngridcomputing.com> wrote:
>>>
>>>> Hey David,
>>>>
>>>> I'm trying to compile the latest iproute2 on an RHEL-7.3 distro, and it
>>>> fails to compile because AF_VSOCK is not defined.  Should this
>>>> functionality be a configure option to disable it on older distros?
>>>>
>>>>
>>>> Thanks,
>>>>
>>>> Steve.
>>>>
>>>> ----
>>>>
>>>> misc
>>>>     CC       ss.o
>>>> ss.c:301:27: error: ‘AF_VSOCK’ undeclared here (not in a function)
>>>>    .families = FAMILY_MASK(AF_VSOCK),
>>>>                            ^
>>>> ss.c:252:46: note: in definition of macro ‘FAMILY_MASK’
>>>>  #define FAMILY_MASK(family) ((uint64_t)1 << (family))
>>>>                                               ^
>>>> ss.c:334:2: error: array index in initializer not of integer type
>>>>   [AF_VSOCK] = {
>>>>   ^
>>>> ss.c:334:2: error: (near initialization for ‘default_afs’)
>>>> make[1]: *** [ss.o] Error 1
>>>> make: *** [all] Error 2
>>>>
>>> Probably should just add an #ifdef to takeout that if not present
>>>
>> Most userspace tools have a compat header for cases like this.
>>
>> #ifndef AF_VSOCK
>> #define AF_VSOCK 	40
>> #endif
>>
> Add the above to include//utils.h; AF_MPLS is already there.

I'll send out a patch.

Thanks,

Steve.