darwintrace: fix random crash and loss of socket caused by "exec 6>&1" used in some configure scripts
darwintrace: fix random crash and loss of socket caused by "exec 6>&1" used in some configure scripts

 - Instead, we're holding the communication socket in FD 236 now, so if
   you want to break trace mode, write exec 236>&1 into your configure
   script…
 - Overwrite dup2(2) to prevent this from happening again and going by
   unnoticed.

git-svn-id: 620571fa9b4bd0cbce9a0cf901e91ef896adbf27@100077 d073be05-634f-4543-b044-5fe20cf6d1d6

macports/macports-base,neverpanic/macports-base,macports/macports-base,danchr/macports-base,danchr/macports-base,neverpanic/macports-base