Re: Porting gdc/dmd

[email protected], le jeu. 25 juin 2026 19:11:06 +0200, a ecrit:
> Jun 24, 2026, 01:13 by [email protected]:
> > yelninei--- via Bug reports for the GNU Hurd, le mer. 17 juin 2026 10:37:02 +0200, a ecrit:
> >> There might still be minor issues all over the place because hand translating almost the entire libc headers into D is tedious work.
> >>
> >
> > Uh :/ Been there with rust, done that too... Why are languages still
> > doing this rather than just relying on C headers...
> >
> 
> I guess one needs a C preprocessor and C compiler to fully understand C headers

Operating systems usually do have that. And gdc does have that ;)

> Having a way to automatically generate this from the C headers would have made this a lot easier.

Perl has been doing that for decades.

> >> I have backports to gcc-11 and gcc-14/15 which are enough to bootstrap or cross compile an initial gdc (for both i686 and x86_64) that can then be used to build dmd. How is Dlang currently bootstrapped in debian and gentoo?
> >>
> >
> > The rebootstrap script can be used to cross-build gcc from a linux host
> > for instance.
> >
> > How did you bootstrap for your work? Did you cross-compile?
> >
> 
> I started with a cross compiler from gdc 14 on linux because of significant improvements in DRuntime (reducing assumptions that glibc means linux + glibc) . 
> I  switched to bootstrapping from gcc-11 once I knew what was needed for each file in the ifdef jungle that is DRuntime (gdc-11 is the last gdc version where the compiler is in C++ and one does not need an existing D compiler) because that is easier for guix.
> 
>  With the backports I can built
> 
> gdc-11 -> gdc-14 -> dmd
> 
> completely natively on i686 and x86_64.

Ok, I see. With the debian rebootstrap script we will probably be able
to directly cross-compile from linux.

Samuel