Get shared builds of libapr and libaprutil, as well as Apache DSOs,

working on AIX.

Submitted by: a cast of many, reverse engineering libtool to
              figure out how to work around its oddities/limitations/
              bugs on AIX
              (Jeff Trawick coded these changes but it took a lot of
              help)


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@92276 13f79535-47bb-0310-9956-ffa450edef68