[libvirt] [PATCH] build: work around FreeBSD stdlib.h bug

[Eric Blake]

On 03/04/2014 06:59 AM, Eric Blake wrote:
> On 03/04/2014 06:47 AM, Daniel P. Berrange wrote:
>> On Tue, Mar 04, 2014 at 06:28:17AM -0700, Eric Blake wrote:
>>> POSIX requires that <stdlib.h> expose WIFEXITED and friends,
>>> but FreeBSD and others fail to comply.  We can work around it
>>> manually by including <sys/wait.h>, or we can work around it
>>> automatically by using gnulib's system-posix module.
>>>
>>> * bootstrap.conf (gnulib_modules): Add system-posix.
>>>
>>> Signed-off-by: Eric Blake <eblake at redhat.com>
>>> ---
>>>
>>> I'll wait for a review on this one - we don't use system(),
>>> and it feels a little bit odd to list the system() module
>>> merely for its side effect of a fixed <stdlib.h>.  The alternative
>>> is to continue using <sys/wait.h> everywhere that we use
>>> WIFEXITED and friends.
>>
>> Perhaps we should have a helper in util/virprocess.{c,h} for
>> this, so no code outside that file ever need use WIFEXITED ?
> 
> We already have a couple of helper functions, and my recent virFork
> cleanups got rid of even more clients of WIFEXITED (that is,
> virCommandRun now defaults to returning sanitized rather than raw exit
> values).  At this point, there are very few reasons for any new code to
> need to use WIFEXITED; it's mostly limited to existing code (but where
> my virFork cleanups tripped up on the FreeBSD header bug due to
> refactoring).
> 

So, should I just ditch this patch?

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

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