CC redis-cli.o
In file included from fastlock.h:3,
                 from ae.h:40,
                 from redis-cli.c:63:
fastlock.h:88:15: error: expected declaration specifiers or ‘...’ before ‘__builtin_offsetof’
 static_assert(offsetof(struct fastlock, m_ticket) == 64, "ensure padding is correct");
               ^~~~~~~~
In file included from ae.h:40,
                 from redis-cli.c:63:
fastlock.h:88:58: error: expected declaration specifiers or ‘...’ before string constant
 static_assert(offsetof(struct fastlock, m_ticket) == 64, "ensure padding is correct");
                                                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~
make[1]: *** [Makefile:372: redis-cli.o] Error 1