libXt: Changes to 'master'

[Jeremy Huddleston]

 configure.ac |   22 ++++++++++++++++++----
 1 file changed, 18 insertions(+), 4 deletions(-)

New commits:
commit c0a233895cc8270ec0ff0bd2abb88d3f6dd524c3
Author: Jeremy Huddleston <jeremyhu at apple.com>
Date:   Fri Mar 4 12:49:48 2011 -0800

    darwin: Don't use poll() when expected to run on darwin10 and prior
    
    Signed-off-by: Jeremy Huddleston <jeremyhu at apple.com>