Re: [wxperl-users] Compiling on SGI

[Mattia B. <mb...@ds...>]

> Hi Mattia,
> 
> Thanks for replying to my message: (see below)
You're welcome!

> Mattia Barbon wrote:
> > 
> > > Has any one been succesful with building wxPerl on SGI?  I get hundreds
> > > of compilation errors:

<snip>

> > >           SvREFCNT_inc( m_self );
> > >           ^
> > >
> > > cc-1367 CC: ERROR File = Grid.c, Line = 184
> > >   A pointer to an incomplete class type is not allowed.
> > >
> > >         bool    show = (int)SvIV(ST(1));

<snip>

> > * Is it a C or C++ compiler ( or both )?
> 
> It is a C++ compiler (that can also handle C).
> 
> > * If it is both, and uses the .c or .cpp ( or .cxx, or whatever ) to
> >   discriminate between C and C++, is there a way to force it to compile
> >   a .c file as C++?
> 
> I am certain that it is treating the file as C++.  When I tried "cc"
> (instead of CC) it gave bunch of errors such as:
> 
> cc-1020 cc: ERROR File = /usr/local/include/wx/defs.h, Line = 456
>   The identifier "class" is undefined.
> 
>   class WXDLLEXPORT wxObject;
>   ^
Sigh, one easy solution gone

> This is clearly a c verses c++ issue.  However, when I use CC, then I
> get bunch of errors that all seems to be related to SvREFCNT_inc, SvOK,
> SvUV, SvPV_nolen, etc.  In fact the first 40 errors all include the
> mentioned names, all with the same message:
> 
>   A pointer to an incomplete class type is not allowed.
> 
> > 
> > * if you do ( from the top level directory )
> > $ make Wx.c
> > $ cp Wx.c Wx.cpp ( or .cxx or .cc ... )
> > $ make Wx.o
> > CC ..... Wx.c
> 
> I did, with no effect.  Any other suggestions?
I'm running short of suggestions :-(

I think CC has a "preprocess to standard output" mode ( like gcc -E )
could you do
$ CC --switch-to-preprocess-to-stdout ..options.. Wx.cpp > Wx.i
and send Wx.i to me, ( better if gzipped )?
Also: do a "make 2>&1 > make.log" and send the log to me.

Another idea ( after you created the Wx.i and make.log ): in Wx.xs try replacing
WXPL_EXTERN_C_START with     extern "C" {
WXPL_EXTERN_C_END   with     }
and see what make Wx.o says

Thanks
Mattia