Thanx for clarification Paul.
Le 12 févr. 2016 20:43, "Paul Eggert" <eggert@cs.ucla.edu> a écrit :

> On 02/12/2016 02:23 AM, Rostislav Svoboda wrote:
>
>> Can anybody explain me why?
>>
>
> It's needed because make-docfile.c now uses symbols like va_list and
> va_start that stdarg.h defines. Without the change, make-docfile.c won't
> compile on platforms like MS-Windows where stdarg.h is not already being
> included by other .h files that make-docfile.c includes. See the thread
> starting here:
>
> http://lists.gnu.org/archive/html/emacs-devel/2016-02/msg00630.html
>
>