Making it easier for Vendors to avoid modifying Samba ...

Richard Sharpe realrichardsharpe at
Fri Nov 1 10:47:24 MDT 2013

On Fri, Nov 1, 2013 at 9:16 AM, Volker Lendecke
<Volker.Lendecke at> wrote:
> On Fri, Nov 01, 2013 at 09:07:43AM -0700, Richard Sharpe wrote:
>> Hi folks,
>> Recently we had to deal with an issue relating to utimensat on our
>> platform. Specifically, to keep robocopy happy you really need
>> nanosecond time resolution. However, the platform did not have support
>> for utimensat (and libc and the include files did not have it.)
>> We found some code that we could back port that gave us the syscall,
>> but messing with libc was not something we wanted to do, so we
>> eventually modified some places to call the syscall via __syscall but
>> that will create extra work for us later when we upgrade because we
>> have to track this down and fix it when we shift to a platform that
>> has that syscall available (also, we jammed  ac_cv_func_utimensat=yes
>> into configure via the command line.)
>> So, what I wonder is are there better ways to do this? Could Samba
>> provide a central include file that is reserved for vendors to place
>> stuff in?
>> I realize that we could also pass in a #define for utimensat that
>> defines an inline function that calls __syscall on the configure
>> command line but that is starting to get ugly.
> Isn't that what lib/replace is for?

Maybe so ... does it work in 3.6?

Richard Sharpe

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