Build error in sql/mdl.cc on OS X 10.10

cmake ../server/ -DBUILD_CONFIG=mysql_release -DWITH_WSREP=OFF -DPLUGIN_TOKUDB=NO -DPLUGIN_MROONGA=NO

[ 43%] Building CXX object sql/CMakeFiles/sql.dir/mdl.cc.o

/Users/kolbe/Devel/git/maria/server/sql/mdl.cc:562:43: error: default initialization of an object of const type 'const MDL_lock::MDL_scoped_lock' requires a user-provided default constructor

const MDL_lock::MDL_scoped_lock MDL_lock::m_scoped_lock_strategy;

                                          ^

/Users/kolbe/Devel/git/maria/server/sql/mdl.cc:563:43: error: default initialization of an object of const type 'const MDL_lock::MDL_object_lock' requires a user-provided default constructor

const MDL_lock::MDL_object_lock MDL_lock::m_object_lock_strategy;

                                          ^

/Users/kolbe/Devel/git/maria/server/sql/mdl.cc:669:39: warning: offset of on non-POD type 'MDL_key' [-Winvalid-offsetof]

  MDL_key *mdl_key= (MDL_key*) (key - offsetof(MDL_key, m_ptr));

                                      ^                 ~~~~~

/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/clang/6.0/include/stddef.h:87:24: note: expanded from macro 'offsetof'

#define offsetof(t, d) __builtin_offsetof(t, d)

                       ^

1 warning and 2 errors generated.

make[2]: *** [sql/CMakeFiles/sql.dir/mdl.cc.o] Error 1

make[1]: *** [sql/CMakeFiles/sql.dir/all] Error 2

make: *** [all] Error 2