-* Poor support for AIX shared builds.
-
-do_aix-shared rule is not flexible enough to parameterize through a
-config-line. './Configure aix43-cc shared' is working, but not
-'./Configure aix64-gcc shared'. In latter case make fails to create shared
-libraries. It's possible to build 64-bit shared libraries by running
-'env OBJECT_MODE=64 make', but we need more elegant solution. Preferably one
-supporting even gcc shared builds. See RT#463 for background information.
-