instead" #endif /* Structure describing a signal stack (obsolete). */ struct sigstack { void *ss_sp; /* Signal stack pointer. */ int ss_onstack; /* Nonzero if executing on this stack. */ }; /* Possible values for `ss_flags.'. */ enum { SS_ONSTACK = 1, #define SS_ONSTACK SS_ONSTACK SS_DISABLE #define SS_DISABLE SS_DISABLE }; /* Minimum stack size for a signal handler. */ #define MINSIGSTKSZ 2048 /* System default stack size. */ #define SIGSTKSZ 8192 /* Alternate, preferred interface. */ typedef struct sigaltstack { void *ss_sp; int ss_flags; size_t ss_size; } stack_t;