Rosetta build error on MacOS Sierra

Hello everyone!

I am trying to build rosetta with mpi in macOS sierra. But, it gives the following errors. 

I tried rebuilding without mpi (after deleting build/ contents), but it gives the same error.

Could any one please help?

$ sudo ./scons.py -j 3 mode=release bin extras=mpi

1 error generated.

scons: *** [build/src/release/macos/16.0/64/x86/clang/8.1/mpi/protocols/init/init.os] Error 1

In file included from src/protocols/match/output/SameChiBinComboGrouper.cc:24:

In file included from src/core/conformation/Residue.hh:38:

In file included from src/core/chemical/ChemicalManager.hh:74:

src/utility/SingletonBase.hh:82:10: error: instantiation of variable

      'utility::SingletonBase<core::pack::rotamers::SingleResidueRotamerLibraryFactory>::instance_'

      required here, but no definition is available

      [-Werror,-Wundefined-var-template]

                if ( ! instance_ ) {

                       ^

src/protocols/match/output/SameChiBinComboGrouper.cc:64:90: note: in

      instantiation of member function

      'utility::SingletonBase<core::pack::rotamers::SingleResidueRotamerLibraryFactory>::get_instance'

      requested here

  ...const & rotlib( *SingleResidueRotamerLibraryFactory::get_instance() );

                                                          ^

src/utility/SingletonBase.hh:102:13: note: forward declaration of template

      entity is here

        static T * instance_;

                   ^

src/utility/SingletonBase.hh:82:10: note: add an explicit instantiation

      declaration to suppress this warning if

      'utility::SingletonBase<core::pack::rotamers::SingleResidueRotamerLibraryFactory>::instance_'

      is explicitly instantiated in another translation unit

                if ( ! instance_ ) {

                       ^

1 error generated.

scons: *** [build/src/release/macos/16.0/64/x86/clang/8.1/mpi/protocols/match/output/SameChiBinComboGrouper.os] Error 1

scons: building terminated because of errors