It would seem like that each time openssl is updated, none of the packages
which depend on it are rebuilt.

This would appear to be the case with freeradius & postfix at least.

The output from Postfix is...

2015-06-29T00:34:52.000000+01:00 ns1 postfix/smtp[7240]: warning: run-time
library vs. compile-time header version mismatch: OpenSSL 1.0.2 may not be
compatible with OpenSSL 1.0.1



Can there not be a dependency put in place that any packages which depend on
openssl are also updated/rebuilt at the same time.

Can someone please tell the postfix guys to do a rebuild.