slight improvement of the output during building

[Simon Josefsson]

Vincent Torri <vincent.torri at gmail.com> writes:

> Hey,
>
> since automake 1.11, one can make the output less verbose. It is described
> in the automake manual as 'silent rule'.
>
> For that, simply add in configure.ac, just after AM_INIT_AUTOMAKE :
>
> m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
>
> To have the original output : make V=1

Thanks, I've applied this change on git master.

/Simon