[PATCH xf86-input-synaptics] build: use dnl for configure.ac comments

[Peter Hutterer]

On Wed, May 25, 2011 at 04:29:15PM +0200, Diego Elio Pettenò wrote:
> Il giorno mer, 25/05/2011 alle 16.20 +0200, Cyril Brulebois ha scritto:
> > 
> > just curious; do you have numbers? ./configure is usually insanely
> > long, so I'm not sure a few dozens/hundreds lines are going to make
> > any difference.
> 
> Honestly? No it's unlikely to make any visible difference whatsoever.
> 
> It's just a pet peeve of mine, because by not using dnl (in macros,
> mostly) you _could_ significantly increase the size of the generated
> file.

http://www.gnu.org/software/autoconf/manual/autoconf.html#Autoconf-Language
You can include comments in configure.ac files by starting them with the
‘#’. For example, it is helpful to begin configure.ac files with a line like
this:

     # Process this file with autoconf to produce a configure script.


If there are no visible differences, I'd rather stick with what is
recommended by the documentation, tbh.

Cheers,
  Peter