Re: [boost] [config] <iosfwd> and g++ 2.95

From: John Maddock (john_at_[hidden])
Date: 2005-10-15 11:25:31

>> select_stdlib_config.hpp has just been changed to include <iosfwd>
>> instead of <utility>. But g++ 2.95's standard library has its own
>> iostreams implementation which doesn't define __STL_CONFIG_H. It does
>> define __IOSFWD__, so maybe that could be checked for as well?
>>
>> Is it okay to commit the attached patch? I've changed sgi.hpp to go
>> back
>> to including <utility> if __STL_CONFIG_H isn't defined so that
>> anything
>> that checks for _STL_CONFIG_H will still work. Also, if __IOSFWD__
>> happens to be used in another library, it will fail to compile.

Oh No!

It's basically *impossible* to implement the new TR1 library if Boost.Config 
includes anything that may in turn include one of the modified TR1 headers: 
<utility> <memory> or <functional>.

I'll take another look at the SGI STL, but any other ideas?

Thanks,  John.