Merged revisions 200985 via svnmerge from

Merged revisions 200985 via svnmerge from
https://origsvn.digium.com/svn/asterisk/trunk

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  r200985 | kpfleming | 2009-06-16 11:32:36 -0500 (Tue, 16 Jun 2009) | 7 lines

  Fix problems with new compiler attribute checking in configure script.

  The last changes to ast_gcc_attribute.m4 caused some problems checking for
  various attributes, because the scope of the symbol the attribute is applied
  to can be important; this patch allows the scope to be specified for the check.
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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.6.1@200989 65c4cc65-6c06-0410-ace0-fbb531ad65f3