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

[Volker Lendecke]

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?

Volker

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