[boost] Re: auto-link and comeau?

From: David Abrahams (dave_at_[hidden])
Date: 2004-12-26 16:17:15

Jonathan Turkanis wrote:
> Robert Ramey wrote:
> 
>> a) The document re:auto-link indicates that not all platforms support
>> it. That leaves me wondering what happens when the macros are
>> included in the library source code an its compiiled?  Is there an
>> error message. Does everything work with the same as w/o auto-linking
>> macros?
> 
> I believe I can anser this. (If not someone will surely let  me know ;-)
> 
> como does not do its own linking; it uses the linker associated with the backend
> compiler. Therefore, if it is used in conjunction with a compiler that does not
> support auto link, there's no way it can support auto link. So the question is
> whether it supports auto link when used with a backend that supports auto link.
> To test this, I compiled the following program on como with VC7.1:
> 
>    #pragma comment(lib, "asfdhjkalsdflkjhsadf")
> 
>    int main() { }
> 
> and got an 'unrecognized pragma' warning. Since auto link relies on pragma
> comment, I conclude that it doesn't work with como.

Comeau may have a mode that passes (unrecognized) pragmas through to the
back-end compiler.

-- 
Dave Abrahams
Boost Consulting
http://www.boost-consulting.com