Re: %union with STL

[Hans Aberg]

On 27 May 2009, at 23:45, Hans Aberg wrote:

> On 27 May 2009, at 20:52, Akim Demaille wrote:
>
> > You will be able to do that in Bison 2.6.  A preview is available at
> >
> > http://www.lrde.epita.fr/~akim/download/bison-2.4.266-4ff3b.tar.bz2
> >
> > Using that version, you can use actual objects (not pointers to),  
> > as in the attached sample file.
> ...
> > <variant.yy>
>
> Looks nice, but I got linker errors - a header missing  
> somewhere :-). I used
>  bison variant.yy
>  gcc variant.tab.cc -o variant > error.txt 2>&1

I found out this problem: one must use g++ instead of gcc, or adding - 
lstdc++, as in:
  g++ variant.tab.cc -o variant
  gcc variant.tab.cc -lstdc++ -o variant
For some reason, 'gcc', though it can compile C++ code, does not  
include this standard C++ library.

  Hans