dsss net install tango

[Graham MacDonald]

Hi Gregor.  Installing dsss on my mac (gdc, ppc) worked fine, but 
installing tango came up with the following error:

Command: /usr/bin/rebuild -obj -explicit lib/common/tango/core/Thread.d 
-fintfc-file=tango/core/Thread.di
+ /usr/bin/rebuild -obj -explicit lib/common/tango/core/Thread.d 
-fintfc-file=tango/core/Thread.di
+ /usr/bin/rebuild -Idsss_imports/ -I. -S./ -I/usr/include/d -S/usr/lib/ 
  -I/usr/include/d -S/usr/lib -I/Users/graham/d/include/d 
-S/Users/graham/d/lib  -oqdsss_objs  -explicit -lib -full 
tango/core/Array.d tango/core/Atomic.d tango/core/BitArray.d 
tango/core/ByteSwap.d tango/core/Signal.d tango/core/sync/Barrier.d 
tango/core/sync/Condition.d tango/core/sync/Config.d 
tango/core/sync/Mutex.d tango/core/sync/ReadWriteMutex.d 
tango/core/sync/Semaphore.d tango/core/Traits.d tango/core/Tuple.d 
tango/core/Type.d tango/core/Vararg.d tango/core/Variant.d 
tango/core/Version.d -oflibSDG-tango-core.a
tango/core/sync/Semaphore.d:162: Error: undefined identifier sem_timedwait
tango/core/sync/Semaphore.d:162: Error: function expected before (), not 
sem_timedwait of type int
Command /usr/bin/rebuild returned with code 256, aborting.
Command /usr/bin/dsss returned with code 256, aborting.

Is this any use?

Thanks.

graham