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Re: Phase 1 of gcc-in-cxx now complete (Ada)
On Fri, 2009-06-26 at 14:07 -0400, Robert Dewar wrote:
> Ian Lance Taylor wrote:
>
> > gnatbind -C appears to be used when bootstrapping gcc to generate .c
> > files. With --enable-build-with-cxx, those .c files will be compiled
> > with a C++ compiler. The symbols emitted by that compilation need to be
> > linkable with the symbols emitted when compiling Ada code, so the .c
> > files need extern "C" to avoid C++ mangling.
> >
> > Or at least so it seems to me. I may be missing some key step.
>
> No, I think that analysis is correct. I agree that if we can make
> the gnatbind output C++ compatible (remembering that it must be
> strictly standard, you cannot assume that gcc will be used to
> compile it!) easily, we may as well do so.
>
> I am not clear why we have to use gnatbind -C in the build context,
> but in any case, let's fix this if it is easy to do so.
Switching gnatbind to generate Ada if there's nothing against
it might be a better solution since stage1 uses the system gnatbind, so
a patch to current gnatbind will not help (unless we push it to branches
and tell user to install a fairly recent gnatbind first).
Laurent