Merged revisions 49102 via svnmerge from

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

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r49102 | kpfleming | 2007-01-01 17:34:35 -0600 (Mon, 01 Jan 2007) | 2 lines

check specifically for VLDTMF and transcoding support in the system's Zaptel installation, and make only the modules that need those features dependent on them (this will allow building the other Zaptel-using parts of Asterisk against older versions of Zaptel or those on other platforms that haven't caught up yet to the Linux version)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@49103 65c4cc65-6c06-0410-ace0-fbb531ad65f3