[krbdev.mit.edu #1793] alpha-osf 1.3-branch nightly build test failures: rpc_test test suite errors out

[Ken Raeburn via RT]

Quick analysis:

The QUALNAME environment variable points to a perl script from
kadmin/testing/scripts, modified at configuration or build time to point
to the local perl executable.  On Tru64, that perl executable is set to
load a dynamic library libperl.so from a non-standard directory.

In the shared library tests, the environment is tweaked to force our own
shared libraries to be found first.  I believe the way this is done has
the side effect of preventing libperl.so from being found at all.

So we probably need either (1) a quick hack to add the perl library
directory to the library search path, or (2) a proper fix to make our
libraries be found first, but still permit any directories configured
into executables to be searched after ours.