Re: Compiling GCC source

[Richard Biener <richard.guenther@gmail.com>]

On Sun, Feb 6, 2022 at 8:14 PM Mohamed Atef via Gcc <gcc@gcc.gnu.org> wrote:
>
> After i built it
> I tried make - j 8 and it's recompiling now i thought i will have messege
> like
> Every thing is up to date or there are no change done
> But it actually started to compile again

If you modify parts of gcc/ only then make sure you run make only
from within the gcc/ subdirectory of the build tree.  Also make sure
you really configured with --disable-bootstrap

Using 'make cc1' inside gcc/ instead of 'make' can also speed up things
considerably if you are testing the C frontend (or cc1plus for C++, etc.).

>
> في الأحد، ٦ فبراير، ٢٠٢٢ ٩:٠٨ م Mir Immad <mirimnan017@gmail.com> كتب:
>
> > Yes, that is right.
> >
> > On Mon, Feb 7, 2022, 12:38 AM Mohamed Atef <mohamedatef1698@gmail.com>
> > wrote:
> >
> >> Hello,
> >>       Only modified files will be recompiled, won't it?
> >>
> >>
> >> في الأحد، ٦ فبراير، ٢٠٢٢ ٩:٠٥ م Mir Immad <mirimnan017@gmail.com> كتب:
> >>
> >>> Make sure to use all the cores available.
> >>>
> >>> make -j N
> >>>
> >>> e.g; make -j 8
> >>>
> >>>
> >>> On Mon, Feb 7, 2022, 12:26 AM Mohamed Atef via Gcc <gcc@gcc.gnu.org>
> >>> wrote:
> >>>
> >>>> Hello everyone,
> >>>>         I built gcc from the repo and it took around 2 hours but I am
> >>>> wondering should I wait two hours after every modification?
> >>>> Is there any way to recompile faster.
> >>>> That's very important as we will add some files and tests  for OMPD.
> >>>> Thanks
> >>>>
> >>>