Merged revisions 45027 via svnmerge from

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

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r45027 | kpfleming | 2006-10-13 10:41:14 -0500 (Fri, 13 Oct 2006) | 2 lines

use a configure script test for PMTU discovery control instead of just assuming it's available on Linux

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@45029 65c4cc65-6c06-0410-ace0-fbb531ad65f3