Re: [Opencxx-users] Problem with g++-3.2

[Grzegorz J. <ja...@he...>]

On Mon, 14 Jul 2003, Chris Cheung wrote:

> Hi,
>
> On Fri, 11 Jul 2003, Carsten Pfeiffer wrote:
> >
> > please try the current CVS version, the problem should be fixed there (and it
> > should be at least as stable as that snapshot).
> >
>
> Thanks a lot.
> I tried the current CVS version (from
> cvs.sourceforge.net:/cvsroot/opencxx/opencxx) and my last problem did not
> appear. However,
>
>
> 1) If I follow the tutorial to use the dynamic-linking in the OpenC++
> compiler,
>
> [sample]$ ../src/occ -I../src -I../gc -- -g -o person person.cc
> lt_dlopen(VerboseClass.so) failed:
> /.../opencxx/sample/VerboseClass.so:
> undefined symbol: _ZTIN7Opencxx5ClassE
> [cheungcc@orchid sample]$ c++filt _ZTIN7Opencxx5ClassE
> typeinfo for Opencxx::Class
>
> The symbol "typeinfo for Opencxx::Class" seems missing.
> If I use static linking with src/.lib/libocc.a, then there is no problem.

I have no idea what it is. Please check with 'nm -C' if the symbol really
is not there?

>
>
> 2) If I try using another compiler like Intel compiler icc
>
> [opencxx-icc]$ export CC=icc
> [opencxx-icc]$ export CXX=icc
> [opencxx-icc]$ export CXXFLAGS=-w1
> [opencxx-icc]$ export CFLAGS=-w1
> [opencxx-icc]$ cd ..
> [opencxx-icc]$ ./configure
>
> It seems that the make system hardcoded using gcc and g++ in compiling
> some source files.

Yes, compiler is hardcoded in driver2.cc . We have long standing plan to
move this functionality out of occ and put it into wrapper script. This is
not difficult, perhaps you could contribute a bit of your time and do it
(it is solution to your problem anyways)? I can help with details.

> Moreover, icc encounter compilation error like
>
> buffer.cc(455): error: no instance of overloaded "operator new[]" matches
> the argument list
>             argument types are: (unsigned int, GCPlacement)
>       buf = new (GC) char[BufSize];
>
> Is there any solution or workaround?


Strange --- the operator is defined in types.h:134, make sure your
compiler sees the definition.

The quick hack is to compile without GC (define DONT_GC preproc symbol).

Hope this helps
Grzegorz

>
> Thank you very much.
>
> --
> Best Regards,
>
> Chris Cheung
> Center for Large-Scale Computation
>
> Have a nice day!
>
>
>
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# Grzegorz Jakacki                       Huada Electronic Design #
# Senior Engineer, CAD Dept.              1 Gaojiayuan, Chaoyang #
# tel. +86-10-64365577 x2074               Beijing 100015, China #
# Copyright (C) 2002 Grzegorz Jakacki, HED. All Rights Reserved. #
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