Re: Thread - problem (tss.cpp under MSVC++6)

From: bill_kempf (williamkempf_at_[hidden])
Date: 2002-02-19 11:29:59

--- In boost_at_y..., Beman Dawes <bdawes_at_a...> wrote:
> At 01:13 AM 2/19/2002, Jason Shirk wrote:
>  >> -----Original Message-----
>  >> From: Beman Dawes [mailto:bdawes_at_a...]
>  >>
>  >> At 01:53 PM 2/18/2002, bill_kempf wrote:
>  >>
>  >>  >> Can you put a specific check into the threadmod code to 
give an
>  >>  >#error if
>  >>  >> it isn't being compiled as a DLL?  Only to apply to 
appropriate
>  >>  >compilers,
>  >>  >> of course.  Would save a lot of grief, I'd expect.
>  >>  >
>  >>  >I'm not sure if there is a way to do this.  If there is I'd 
love to
>  >>  >hear about it.
>  >>
>  >> Hum...  I was thinking that _DLL did it.  But that specifies the
>  >runtime
>  >> library used, not what the target is.
>  >>
>  >> Jason?  Any ideas?
>  >>
>  >
>  >Sorry, there isn't a way to do that.  The only define /LD adds is 
_MT,
>  >and that's used w/ /MT and /MD, so it doesn't help.
> 
> Might be worth a new predefined macro.  _DLL_TARGET or similar.
> 
> Anything a compiler implementor can do that allows better error 
detection 
> is a win for users, and cuts support costs too.

The only problem is that, as someone else pointed out, this is a 
linker concept not a compiler concept.  I'm not sure the compiler 
can  determine that the target will be a DLL.

Bill Kempf