[openbeos] Re: _IMPEXP_BE/picasso questions
- From: "David McPaul" <dmcpaul@xxxxxxxxxxxxxx>
- To: openbeos@xxxxxxxxxxxxx
- Date: Thu, 15 May 2003 19:49:11 +1000 EST
> > > > extern _IMPEXP_BE BApplication *be_app;
> > > > and I just have no idea about the meaning of the _IMPEXP_BE.
> > > >
> > > it used to be defined to some metrowerks specific pragmas to
> > > either
> > > tell
> > > the symbol will be EXported (when building libBE), or IMPorted
> > > (from libBE).
> > > With gcc, just #defineing it should be enough.
> >
> > Is there a way to get this behaviour with GCC. ie only exporting
> > symbols that you want exported?
>
> Yes, AFAIK, the (linker) parameter is --no-export-all-symbols.
> In Windows you need to use the dllexport/dllimport options when
> using --no-export-all-symbols, so I think that
> in BeOS it is needed, too.
> I used the Dev-C++ IDE and it enabled this option for all projects by
> default. The skeleton dll project used a small header that defined
> something
> similar to IMPEXP and for the dll you defined BUILDING_DLL (I forgot
> the
> names), so that IMPEXP means dllexport and if it is not defined it
> means
> dllimport.
> Maybe the output format adds some restrictions on this, so that the
> linker
> in BeOS does not support --no-export....
> You could test it and tell us if it works. ;)
Does not seem to have any effect. It looks to be a dlltool parameter
rather than a gcc linker one.
I will research it some more, perhaps it needs something else as well.
Cheers
David
--
Collaboration, n.:
A literary partnership based on the false assumption that the
other fellow can spell.
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