that you might not be able to. The installation directory is encoded
in the perl binary with the LD_RUN_PATH environment variable (or
equivalent ld command-line option). On Solaris, you can override that
-with LD_LIBRARY_PATH; on Linux you can't. On Digital Unix, you can
-override LD_LIBRARY_PATH by setting the _RLD_ROOT environment variable
-to point to the perl build directory.
+with LD_LIBRARY_PATH; on Linux, you can only override at runtime via
+LD_PRELOAD, specifying the exact filename you wish to be used; and on
+Digital Unix, you can override LD_LIBRARY_PATH by setting the
+_RLD_ROOT environment variable to point to the perl build directory.
The only reliable answer is that you should specify a different
directory for the architecture-dependent library for your -DDEBUGGING