NSIGSYS
static_assert(NSIGSYS == 2);
static_assert(NSIGSYS == 2);
static_assert(NSIGSYS == 2);
static_assert(NSIGSYS == 2);
static_assert(NSIGSYS == 2);
static_assert(NSIGSYS == 2);
static_assert(NSIGSYS == 2);
[SIGSYS] = { NSIGSYS, SIL_SYS },