Hello, folks!

I'm trying to build C++ 11 mongo client library but could not do it:
mongocxx/test/pool.cpp:146:5: error: no type named 'max_align_t' in namespace 'std'; did you mean simply 'max_align_t'?
std::max_align_t dummy_address;
^~~~~~~~~~~~~~~~
max_align_t
/opt/dps/libraries/clang_3_8_0/bin/../lib/clang/3.8.0/include/__stddef_max_align_t.h:40:3: note: 'max_align_t' declared here
} max_align_t;
^
1 error generated.

Could you fix it?