:info:build Undefined symbols for architecture x86_64:
:info:build   "___sincos_stret", referenced from:
:info:build       _main in tclock.o
:info:build ld: symbol(s) not found for architecture x86_64
:info:build clang: error: linker command failed with exit code 1 (use -v to see invocation)
:info:build make[1]: *** [tclock] Error 1
:info:build make[1]: *** Waiting for unfinished jobs....
:info:build make[1]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sourc$
:info:build make: *** [all] Error 2
:info:build make: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_$
:info:build Command failed:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsyn$
:info:build Exit code: 2
:error:build org.macports.build for port ncurses returned: command execution failed
:debug:build Error code: CHILDSTATUS 37941 2
:debug:build Backtrace: command execution failed
    while executing
"system -nice 0 $fullcmdstring"
    ("eval" body line 1)
    invoked from within
"eval system $notty $nice \$fullcmdstring"
    invoked from within
"command_exec build"
    (procedure "portbuild::build_main" line 8)
    invoked from within