Re: Using modern gcc from pkgsrc on old systems for c++

[Greg Troxel <gdt%lexort.com@localhost>]

Jason Bacon <outpaddling%yahoo.com@localhost> writes:

> Can you try bootstrapping a tree on NetBSD 5 with the attached script?
>
> I used it on NetBSD 7.1, choosing gcc7 when prompted, and re2c built
> fine for me.

Thanks, I will give that a try.

Can you explain how this is supposed to work in terms of the
variables I quoted?  I don't see them in your scripts at first glance.

> There are some pitfalls involved with using a pkgsrc gcc as a minimum
> compiler and auto-pkgsrc-setup knows how to step around them.  See the
> attached mk.conf generated by the script.
>
> The massive exception list for gcc dependencies is due largely to the
> python dep in gcc8, which almost double the number of dependencies
> over gcc7.
>
> Your errors don't seem to indicate that this is the problem, but you
> also have to watch out for old binutils installations that can't
> handle instructions generated by newer gcc code generators.   See the
> hack for RHEL at the end of my mk.conf.

So perhaps the native netbsd-5 binutils have this issue?