Merged revisions 241932 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

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  r241932 | seanbright | 2010-01-21 10:25:46 -0500 (Thu, 21 Jan 2010) | 5 lines
  
  Fix configure check for PTHREAD_ONCE_INIT when manually adding -Wall to CFLAGS.
  
  (closes issue #16666)
  Reported by: romain_proformatique
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@241938 65c4cc65-6c06-0410-ace0-fbb531ad65f3