Macportsでx264のインストールにこける

Error: Target org.macports.build returned: shell command " cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_multimedia_x264/work/x264-snapshot-20090810-2245" && /usr/bin/make -j1 default " returned error 1
Command output: sh: line 0: cd: /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_multimedia_x264/work/x264-snapshot-20090810-2245: No such file or directory

Error: The following dependencies failed to build: x264
Error: Status 1 encountered during processing.
Before reporting a bug, first run the command again with the -d flag to get complete output.

上記のエラーが出た場合は，Xcodeのバージョンを解決．