>>>>> On Mon, 26 Aug 2002 21:29:05 +0100, David Laight <david@l8s.co.uk> said:

>> And even if there is a way to get such symbols. There is a still
>> following problem:
>> http://mail-index.netbsd.org/tech-userlevel/2001/12/22/0002.html

> That is only a serious problem if the two versions are not binary
> compatible.

No.
Even if two versions are ABI compatible by using opaque pointer
technique, the problem happens when internal implementation of the
opaque type is changed.
--
soda