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Re: C++ bootstrap of GCC - still useful ?


Eric Botcazou <ebotcazou@adacore.com> writes:

>> When I configure with
>>     --enable-build-with-cxx --enable-languages=c,c++,ada
>> I get the appended.  The problem is that the Ada code is looking for C
>> symbol names but the names in the .o files are mangled for C++.
>
> OK, this is known: a couple of tweaks to the Makefile (to use g++ instead of 
> gcc to link) are needed and extern "C" must be added all over the place, see:
>   http://gcc.gnu.org/ml/gcc/2009-06/msg00635.html
>
> I can post an updated patch if you want, but saying that the Ada front-end 
> blocks the use of C++ in gcc is unfair; it is (and has always been) neutral.

My apologies, I didn't mean to attack.  I tried it, and it failed
building Ada.  That's all I meant.

If there is an up to date patch, I'm happy to review it if it would
help.  But perhaps an Ada maintainer would prefer to do the review, I
don't know what the usual policy is as I've never approved an Ada patch.

I have a patch ready to go which would use C++ in stages 2 and 3.  I
can't propose that patch right now because it fails when building Ada.
If we get Ada fixed, I will propose it.

Ian


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