QPID-5079: Get library import/export declarations working for linux
- Only qpidmessaging and qpidtypes libraries are affected

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1516549 13f79535-47bb-0310-9956-ffa450edef68
QPID-5079: Added link map file to cut the number of symbols exported even further
- It seems that the library import/export mechanism isn't sufficient under the
  gnu tool chain to really limit the exported symbols

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1516550 13f79535-47bb-0310-9956-ffa450edef68
QPID-5079: Remove unused and unecessary member of MessagingException class
- Potentially an ABI change but noone can really have used this for anything.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1516551 13f79535-47bb-0310-9956-ffa450edef68
QPID-5079: Add script to compare symbols exported by library with expected list

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1516552 13f79535-47bb-0310-9956-ffa450edef68