2017-11-16 18:39 GMT+01:00 Eli Zaretskii <eliz@gnu.org>:

> > From: Fabrice Popineau <fabrice.popineau@gmail.com>
> > Date: Thu, 16 Nov 2017 18:35:19 +0100
> > Cc: Phillip Lord <phillip.lord@russet.org.uk>,
> >       Jostein Kjønigsen <jostein@kjonigsen.net>,
> >       Jostein Kjønigsen <jostein@secure.kjonigsen.net>,
> >       Drew Adams <drew.adams@oracle.com>, Emacs developers <
> emacs-devel@gnu.org>
> >
> >  >  > The last step takes an hour.
> >  >
> >  >  Try "make -j8" instead, and it will end much faster.
> >  >
> >  > Well, the slow part is still configure, because of the numerous
> instances of shell that are launched.
> >
> >  Not here, it isn't.  The slow part is byte compilation of the files
> >  with bootstrap-emacs, until it is rebuilt with byte-compiled compiler.
> >
> > Phillip said :
> >
> > ./configure ; make
> >
> > Since when does it bootstrap emacs and recompile elc files ?
>
> No, he said
>
>   git clone emacs
>   ./configure; make
>
> And that does bootstrap.
>
> > And on my machine, ./configure is about 10 times slower than compiling
> emacs itself (the make -j8 part).
>
> Does configure on your machine take anywhere near an hour?  I doubt
> that.
>
>
'make -j8 bootstrap' takes 20mn.
The ./configure part takes 3-4mn.