process to catch any implementation-discrepancies between symbols used
by the compiler and those implemented in the runtime.

The situation will happen from time to time and there is no need to
issue a panic when we can test sensibly for it.



git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@1394 d4fa192b-c00b-0410-8231-f00ffab90ce4