Re: [jamboost] Shared libraries on OpenBSD...

From: David Abrahams (dave_at_[hidden])
Date: 2003-01-15 05:53:54

Vladimir Prus <ghost_at_[hidden]> writes:

> Rene Rivera wrote:
>
>> 2. Do we have anything in the design of BBV2 to handle such a platform
>> requirement?
>
> I need to understand how this should be handled, first. There's a rule/action
> pair gcc.link-dll. I think version numbers should be handled by them?
>
> So, you'd have
>
> toolset.flags gcc VERSION_NUMBER : version-number ;
>
> and
>
> actions gcc.link-dll
> {
> <ordinary-stuff>
> ln -s $(<) $(<).$(VERSION_NUMBER)
> }
>
> The last line should be tweaked to expand to nothing with VERSION_NUMBER
> is empty, but you get the idea. Then, on all platforms but OpenBSD,
> the default value of VERSION_NUMBER will be "", and on OpenBSD it will be
> "0.0". Will that work?

Just a small meta-comment: let's be sure to keep in mind that this is
a platform requirement, not a (direct) toolset requirement, so ideally
we'll find a way to encode this stuff in the platform. That is to
say, (for example) the constructor for library target objects should
automatically handle adding version numbers to the target filename.

-- 
David Abrahams
dave_at_[hidden] * http://www.boost-consulting.com
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