port llvm-3.5 returned: Failed to locate 'xz' in path

[s.raeisi@…]

$ sudo port install py27-numpy
Warning: xcodebuild exists but failed to execute
Warning: Xcode does not appear to be installed; most ports will likely fail to build.
--->  Computing dependencies for py27-numpy
--->  Dependencies to be installed: libgcc cctools llvm-3.5 isl ld64 ld64-latest libmpc mpfr py27-cython cython_select py27-nose nosetests_select py27-setuptools
--->  Extracting llvm-3.5
Error: org.macports.extract for port llvm-3.5 returned: Failed to locate 'xz' 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?
Error: Failed to install llvm-3.5
Please see the log file for port llvm-3.5 for details:
    /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_llvm-3.5/llvm-3.5/main.log
Error: The following dependencies were not installed: libgcc cctools llvm-3.5 isl ld64 ld64-latest libmpc mpfr py27-cython cython_select py27-nose nosetests_select py27-setuptools
To report a bug, follow the instructions in the guide:
    http://guide.macports.org/#project.tickets
Error: Processing of port py27-numpy failed

[ryandesign (Ryan Carsten Schmidt)]

I'm not sure why the xz port didn't get installed before the llvm-3.5 port, since the xz port is listed as an extract dependency of the llvm-3.5 port.

Does manually installing the xz port first work around the problem?

sudo port install xz