Re: Profiled libraries on freebsd-current

On Mon, May 02, 2022 at 12:32:25PM -0400, Ed Maste wrote:
> On Sun, 1 May 2022 at 11:54, Steve Kargl
> <sgk@troutmask.apl.washington.edu> wrote:
> >
> > diff --git a/gcc/config/freebsd-spec.h b/gcc/config/freebsd-spec.h
> > index 594487829b5..1e8ab2e1827 100644
> > --- a/gcc/config/freebsd-spec.h
> > +++ b/gcc/config/freebsd-spec.h
> > @@ -93,14 +93,22 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
> >     (similar to the default, except no -lg, and no -p).  */
> >
> >  #ifdef FBSD_NO_THREADS
> 
> I wonder if we can simplify things now, and remove this
> `FBSD_NO_THREADS` case. I didn't see anything similar in other GCC
> targets I looked at.

That I don't know.  FBSD_NO_THREADS is defined in freebsd-nthr.h.
In fact, it's the only thing in that header (except copyright
broilerplate).  freebsd-nthr.h only appears in config.gcc and
seems to only get added to the build if someone runs configure
with --enable-threads=no.  Looking at my last config.log for
gcc trunk, I see "Thread model: posix", which appears to be
the default case or if someone does --enable-threads=yes or
--enable-threads=posix.  So, I suppose it comes down to 
two questions: (1) is libpthread.* available on all supported
targets and versions? (2) does anyone build gcc without 
threads support?

-- 
Steve