python27 fails to build

Command failed:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_python27/python27/work/Python-2.7.12" && /usr/bin/make -j4 -w all MAKE="/usr/bin/make CC=/usr/bin/gcc-4.2"
Exit code: 2
Error: org.macports.build for port python27 returned: command execution failed
Warning: targets not executed for python27: org.macports.activate org.macports.build org.macports.destroot org.macports.install
Error: Failed to install python27
Please see the log file for port python27 for details:
    /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_python27/python27/main.log
Error: The following dependencies were not installed: clang-3.4 python27 libcxxabi
To report a bug, follow the instructions in the guide:
    http://guide.macports.org/#project.tickets
Error: Processing of port libcxx failed