gdb @0.24 does not build on os x 10.11

[dchapman2146]

---> Building gdc Error: org.macports.build for port gdc returned: command execution failed Please see the log file for port gdc for details:

/opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_gdc/gdc/main.log

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​http://guide.macports.org/#project.tickets

Error: Processing of port gdc failed