Hi! I am a newbie to Deal.II. After the installation, I typed the command make test for running the quick tests. But all four tests failed out of four. The reason listed below in the quicktests.log is the same for all 4 tests. I would like to ask if anyone could please help indicate what the error is and how to fix it? Any help or hints would be much appreciated! Thank you very much in advance!
Scanning dependencies of target tbb.debug
[100%] Building CXX object tests/quick_tests/CMakeFiles/tbb.debug.dir/tbb.cc.o
/root/dealii-8.4.1/tests/quick_tests/tbb.cc:49:6: warning: unused parameter ‘scratch’ [-Wunused-parameter]
Linking CXX executable tbb.debug
../../lib/libdeal_II.g.so.8.4.1: undefined reference to `pthread_mutexattr_destroy'
../../lib/libdeal_II.g.so.8.4.1: undefined reference to `pthread_join'
../../lib/libdeal_II.g.so.8.4.1: undefined reference to `pthread_detach'
../../lib/libdeal_II.g.so.8.4.1: undefined reference to `pthread_barrier_wait'
../../lib/libdeal_II.g.so.8.4.1: undefined reference to `pthread_mutexattr_settype'
../../lib/libdeal_II.g.so.8.4.1: undefined reference to `pthread_mutex_trylock'
../../lib/libdeal_II.g.so.8.4.1: undefined reference to `pthread_barrier_init'
../../lib/libdeal_II.g.so.8.4.1: undefined reference to `sem_wait'
../../lib/libdeal_II.g.so.8.4.1: undefined reference to `sem_init'
../../lib/libdeal_II.g.so.8.4.1: undefined reference to `pthread_getspecific'
../../lib/libdeal_II.g.so.8.4.1: undefined reference to `pthread_setspecific'
../../lib/libdeal_II.g.so.8.4.1: undefined reference to `sem_destroy'
../../lib/libdeal_II.g.so.8.4.1: undefined reference to `pthread_create'
../../lib/libdeal_II.g.so.8.4.1: undefined reference to `pthread_key_delete'
../../lib/libdeal_II.g.so.8.4.1: undefined reference to `pthread_key_create'
../../lib/libdeal_II.g.so.8.4.1: undefined reference to `pthread_mutexattr_init'
../../lib/libdeal_II.g.so.8.4.1: undefined reference to `pthread_attr_getstack'
../../lib/libdeal_II.g.so.8.4.1: undefined reference to `pthread_barrier_destroy'
../../lib/libdeal_II.g.so.8.4.1: undefined reference to `sem_post'
../../lib/libdeal_II.g.so.8.4.1: undefined reference to `pthread_getattr_np'
../../lib/libdeal_II.g.so.8.4.1: undefined reference to `pthread_attr_setstacksize'
collect2: error: ld returned 1 exit status
gmake[7]: *** [tests/quick_tests/tbb.debug] Error 1
gmake[6]: *** [tests/quick_tests/CMakeFiles/tbb.debug.dir/all] Error 2
gmake[5]: *** [tests/quick_tests/CMakeFiles/tbb.debug.run.dir/rule] Error 2
gmake[4]: *** [tbb.debug.run] Error 2