- explain what MACOSX_DEPLOYMENT_TARGET is good for
- remove --with-termcaplib=.. from configure switches: it doesn't exist anymore, and builds seem to work OK without any particular switch
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@22499 b3059339-0415-0410-9bf9-f77b7e298cf2