[boost] Re: [program_options] post-review version -- compile problem

From: Vladimir Prus (ghost_at_[hidden])
Date: 2004-03-24 05:39:56

Hi Rob,

Rob Lievaart wrote:
> But the mingw provided stdlib.h contains an unconditional
> 
> #define environ _environ
> 
> So it does not compile :-(
> 
> I changed parser.cpp to
> 
> #if defined(_WIN32) && !defined( __MINGW32__ )
> char **environ = _environ;
> #endif
> 
> And now it compiles and the samples run, 

I've applied this workaround and updated the packages.

> but I have not
> actually tried to use enviroment variables.

I might want to run "bjam" in the "test" directory -- the parsers_test.cpp
includes test for environment variables handling.

> Also I checked the stdlib.h provided with MSVC6.5 and
> that contains
> 
> #ifdef _POSIX_
> extern char ** environ;                 /* pointer to environment table */
> #else
> 
> But I guess this would not cause a problem when _POSIX_ is defined,
> because the local environ would just hide the one from stdlib.h.

Yes, I think that's okay.

> And a small question, is the library supposed to work with 6.5 at all?
> I get a rather large amount of errors and warnings when I try to build
> it. I haven't looked into them yet, if it is not supposed to work then I
> won't spend any time on it.

Nope, it was not supposed to work. For now, I was interested in finalizing
interface and getting the library into CVS. I am not sure how hard it will
be to support 6.5 -- this remains to be seen. 

Thanks,
Volodya