Merged revisions 265747 via svnmerge from

Merged revisions 265747 via svnmerge from
https://origsvn.digium.com/svn/asterisk/trunk

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  r265747 | tilghman | 2010-05-25 19:29:40 -0500 (Tue, 25 May 2010) | 8 lines

  Use configure to determine the prefixes and include directories properly.

  This ensures cross-platform compatibility, even among Linux distributions,
  which don't always put headers in the same place.

  (closes issue #17391)
   Reported by: loloski
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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.6.2@265748 65c4cc65-6c06-0410-ace0-fbb531ad65f3