Re: Attributes 'Version and 'Body_Version

[Kilgallen@SpamCop.net (Larry Kilgallen)]

In article <yec3d3nij4r.fsf@king.cts.com>, Keith Thompson <kst@cts.com> writes:

> If unit A depends on unit B, a change in B can affect the object
> generated for A even if the source of A is unchanged.  I don't see a
> requirement for A'Version or A'Body_Version to change when this
> happens, though I can see that such a requirement would be useful.

E.3 (5) says:

The version of a compilation unit changes whenever the version
changes for any compilation unit on which it depends semantically.
The version also changes whenever the compilation unit itself
changes in a semantically significant way. It is implementation
defined whether there are other events (such as recompilation)
that result in the version of a compilation unit changing.