Warning: The Command Line Tools for Xcode don't appear to be installed; most ports will likely fail to build.

Warning: See http://guide.macports.org/chunked/installing.xcode.html for more information.

--->  Computing dependencies for subversion-javahlbindingsError: Unable to execute port: can't read "build.cmd": Failed to locate 'make' in path: '/opt/local/bin:/opt/local/sbin:/bin:/sbin:/usr/bin:/usr/sbin' or at its MacPorts configuration time location, did you move it?

打开Xcode--》偏好设置--》download--》install command line tools