Blocked revisions 254046 via svnmerge

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  r254046 | qwell | 2010-03-23 16:07:54 -0500 (Tue, 23 Mar 2010) | 9 lines

  Allow out-of-tree modules to load, regardless of DEBUG_THREADS/DEBUG_CHANNEL_LOCKS differences.

  This can be guaranteed by forcing the ABI to no longer change when these compiler flags are set.
  An unfortunate side-effect to this is that there is an ABI change here.  However, there is some
  mitigation.  Existing modules *will* fail to load since they would require functions that no
  longer exist.

  Review: https://reviewboard.asterisk.org/r/508/
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@254047 65c4cc65-6c06-0410-ace0-fbb531ad65f3