1) Solaris sed doesn't have -r, which means things like \s and \S don't work.
2) GNU sed version 4.1.2 failed on a very simple test
     echo "Test   Test" | sed -r -e 's/\s/x/g'
     should have returned "TestxxxTest", but did not (however, 4.1.4 did?).
3) The CFLAGS were never set, so that entire line actually did nothing.  Now it's useful again.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@40964 65c4cc65-6c06-0410-ace0-fbb531ad65f3