[gcc-in-cxx] Trunk fails to bootstrap with --enable-build-with-cxx

[Ralf Wildenhues]

* Pedro Lamarão wrote on Thu, Aug 27, 2009 at 12:24:07AM CEST:
> 2009/8/26 Ralf Wildenhues:
> 
> >> >.../../trunk/libcpp/../include/libiberty.h:106: error: new declaration
> >> >‘char* basename(const char*)’
> >> >/usr/include/string.h:601: error: ambiguates old declaration ‘const
> >> >char* basename(const char*)’
> >>
> >> The problem is that AC_CHECK_DECLS gets confused by overloaded
> >> functions, and glibc 2.10 has overloaded declarations of basename
> >> and some other string functions for const-correctness.
> >
> > Could you show the config.log snippet that shows the failed test?
> > Is this a new error due to the autotools upgrade, or new due to
> > glibc 2.10?
> 
> I think this is new in glibc 2.10, for the reasons given by Jason Merrill above.
> I've discussed this problem with Jerry Quinn before, and he had a
> tentative patch that worked for me.
> As I understand things, this patch is on hold waiting for a solution
> to the bootstrap comparison problem being discussed in another thread.
> 
> I am waiting for a solution to these problems to continue work on the
> std::sort gcc-in-cxx subproject; keeping all these patches up to date
> with trunk is too difficult for me right now.
> Currently, I have a patch to an old revision of the trunk.

Well, can you post the patch, or did I somehow miss it on the list?
I'd be particularly interested if it tries to fix the Autoconf test
in some sensible way.

Thanks,
Ralf