I have installed openmama on Ubuntu 12 (32bit)  but having trouble building it  - getting the following error:

Googling seems to indicate a problem  with Boost or pthreads.   Any advice?

Thanks

John

/bin/bash ../../../libtool --tag=CXX   --mode=link g++  -g -O2  -L/usr/local/lib -L./../../cpp -L./../../c -L./../../../../../common/c_cpp/src/c -o mamalistencpp mamalistencpp.o -lmamacpp -lmama -lpthread -ldl -lnsl

libtool: link: g++ -g -O2 -o .libs/mamalistencpp mamalistencpp.o  -L/usr/local/lib -L./../../cpp -L./../../c -L./../../../../../common/c_cpp/src/c /home/openmama/openmama/OpenMAMA-2.1/mama/c_cpp/src/cpp/.libs/libmamacpp.so -L./../c /home/openmama/openmama/OpenMAMA-2.1/mama/c_cpp/src/c/.libs/libmama.so -L./../../../../common/c_cpp/src/c -lrt -luuid -lpthread -ldl -lnsl -Wl,-rpath -Wl,/home/openmama/openmama/OpenMAMA-2.1/lib

/home/openmama/openmama/OpenMAMA-2.1/mama/c_cpp/src/c/.libs/libmama.so: undefined reference to `sem_init'

/home/openmama/openmama/OpenMAMA-2.1/mama/c_cpp/src/c/.libs/libmama.so: undefined reference to `pthread_mutexattr_settype'

/home/openmama/openmama/OpenMAMA-2.1/mama/c_cpp/src/c/.libs/libmama.so: undefined reference to `pthread_key_create'

/home/openmama/openmama/OpenMAMA-2.1/mama/c_cpp/src/c/.libs/libmama.so: undefined reference to `sem_destroy'

/home/openmama/openmama/OpenMAMA-2.1/mama/c_cpp/src/c/.libs/libmama.so: undefined reference to `pthread_getspecific'

/home/openmama/openmama/OpenMAMA-2.1/mama/c_cpp/src/c/.libs/libmama.so: undefined reference to `sem_timedwait'

/home/openmama/openmama/OpenMAMA-2.1/mama/c_cpp/src/c/.libs/libmama.so: undefined reference to `pthread_create'

/home/openmama/openmama/OpenMAMA-2.1/mama/c_cpp/src/c/.libs/libmama.so: undefined reference to `pthread_mutexattr_init'

/home/openmama/openmama/OpenMAMA-2.1/mama/c_cpp/src/c/.libs/libmama.so: undefined reference to `pthread_key_delete'

/home/openmama/openmama/OpenMAMA-2.1/mama/c_cpp/src/c/.libs/libmama.so: undefined reference to `sem_post'

/home/openmama/openmama/OpenMAMA-2.1/mama/c_cpp/src/c/.libs/libmama.so: undefined reference to `sem_trywait'

/home/openmama/openmama/OpenMAMA-2.1/mama/c_cpp/src/c/.libs/libmama.so: undefined reference to `sem_getvalue'

/home/openmama/openmama/OpenMAMA-2.1/mama/c_cpp/src/c/.libs/libmama.so: undefined reference to `pthread_setspecific'

/home/openmama/openmama/OpenMAMA-2.1/mama/c_cpp/src/c/.libs/libmama.so: undefined reference to `sem_wait'

/home/openmama/openmama/OpenMAMA-2.1/mama/c_cpp/src/c/.libs/libmama.so: undefined reference to `pthread_join'