That might be the problem in the CI rig, but xtoolchain on CURRENT
doesn't appear to provide the incorrect "12" value, and it's still
broken — nothing to do with gets(3).

$ x86_64-unknown-freebsd13.0-gcc-6.4.0 -std=c99  -dM -E - < /dev/null
| grep FreeBSD
#define __FreeBSD__ 13

The error I hit is the one ostensibly fixed by 353408:

make[4]: 
/obj/usr/home/conrad/src/freebsd/amd64.amd64/sys/GENERIC/modules/usr/home/conrad/src/freebsd/sys/modules/opensolaris/.depend.opensolaris_atomic.o,
5: ignoring stale .depend for
/usr/home/conrad/src/freebsd/sys/cddl/contrib/opensolaris/common/atomic/amd64/opensolaris_atomic.S
x86_64-unknown-freebsd13.0-gcc: error:
/usr/home/conrad/src/freebsd/sys/cddl/contrib/opensolaris/common/atomic/amd64/opensolaris_atomic.S:
No such file or directory
x86_64-unknown-freebsd13.0-gcc: fatal error: no input files

Best,
Conrad

On Fri, Oct 11, 2019 at 1:04 AM Dimitry Andric <d...@freebsd.org> wrote:
>
> On 11 Oct 2019, at 08:24, Andriy Gapon <a...@freebsd.org> wrote:
> >
> > On 11/10/2019 09:07, Conrad Meyer wrote:
> >> Fwiw, this doesn’t seem to fix the NO_CLEAN build for amd64-xtoolchain-gcc.
> >
> > Does a clean build work for that configuration?
> > I looked at one of CI builds and it had this:
> > In file included from /workspace/src/contrib/libc++/include/__debug:26:0,
> >                 from /workspace/src/contrib/libc++/include/utility:206,
> >                 from /workspace/src/contrib/libc++/include/algorithm:642,
> >                 from /workspace/src/contrib/libc++/src/algorithm.cpp:9:
> > /workspace/src/contrib/libc++/include/cstdio:156:9: error: '::gets' has not 
> > been
> > declared
> > using ::gets;
> >
> > I recall seeing a similar problem for riscv too.
>
> Yes, this is an issue with the external toolchains, which pass the wrong
> version of __FreeBSD__.  They should set the value to 13, not 12.
>
> -Dimitry
>
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