Re: Perpetual loop

[nia <nia%NetBSD.org@localhost>]

On Wed, Mar 31, 2021 at 07:44:41AM -0400, Greg Troxel wrote:
> 
> Jonathan Perkin <jperkin%joyent.com@localhost> writes:
> 
> > * On 2021-03-31 at 08:53 BST, nia wrote:
> >
> >>If pkgsrc is trying to build gcc3 something is very wrong, this basically
> >>means it couldn't find a toolchain.
> >
> > At this point in time we should probably just make this more explicit.
> > Rip out gcc48 and earlier, and convert the GCC_REQD 2.x/3.x stuff into
> > a "could not find host compiler" error.
> 
> (I have no problem with the 'needing gcc3 is a sign of very bad things' notion.)
> 
> I think it would be good to avoid breaking pkgsrc on systems that are
> really old but not quite ancient.  I draw the line at netbsd-5 which has
> gcc 4.1.  Yes, that's really crufty, but a lot of things build, and
> while pkgsrc does not "support" such a system, I'd like to avoid moving
> it to "completely fails".
> 

https://gcc.gnu.org/install/prerequisites.html

"Versions of GCC prior to 11 also allow bootstrapping with an ISO C++98
compiler, versions of GCC prior to 4.8 also allow bootstrapping with a
ISO C89 compiler, and versions of GCC prior to 3.4 also allow bootstrapping
with a traditional (K&R) C compiler."

It's why I proposed deleting all the priors and reimporting 4.7, but
not even 4.7 should be necessary with netbsd-5, since the compiler has
C++98 support.