#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \

 || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)

#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)

#define MINSIGSTKSZ 2048

#define SIGSTKSZ 8192

#endif

#ifdef _GNU_SOURCE

#define REG_GS          0

#define REG_FS          1

#define REG_ES          2

#define REG_DS          3

#define REG_EDI         4

#define REG_ESI         5

#define REG_EBP         6

#define REG_ESP         7

#define REG_EBX         8

#define REG_EDX         9

#define REG_ECX         10

#define REG_EAX         11

#define REG_TRAPNO      12

#define REG_ERR         13

#define REG_EIP         14

#define REG_CS          15

#define REG_EFL         16

#define REG_UESP        17

#define REG_SS          18

#endif

#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)

typedef int greg_t, gregset_t[19];

typedef struct _fpstate {

	unsigned long cw, sw, tag, ipoff, cssel, dataoff, datasel;

	struct {

		unsigned short significand[4], exponent;

	} _st[8];

	unsigned long status;

} *fpregset_t;

struct sigcontext {

	unsigned short gs, __gsh, fs, __fsh, es, __esh, ds, __dsh;

	unsigned long edi, esi, ebp, esp, ebx, edx, ecx, eax;

	unsigned long trapno, err, eip;

	unsigned short cs, __csh;

	unsigned long eflags, esp_at_signal;

	unsigned short ss, __ssh;

	struct _fpstate *fpstate;

	unsigned long oldmask, cr2;

};

typedef struct {

	gregset_t gregs;

	fpregset_t fpregs;

	unsigned long oldmask, cr2;

} mcontext_t;

#else

typedef struct {

	unsigned __space[22];

} mcontext_t;

#endif

struct sigaltstack {

	void *ss_sp;

	int ss_flags;

	size_t ss_size;

};

typedef struct __ucontext {

	unsigned long uc_flags;

	struct __ucontext *uc_link;

	stack_t uc_stack;

	mcontext_t uc_mcontext;

	sigset_t uc_sigmask;

	unsigned long __fpregs_mem[28];

} ucontext_t;

#define SA_NOCLDSTOP  1

#define SA_NOCLDWAIT  2

#define SA_SIGINFO    4

#define SA_ONSTACK    0x08000000

#define SA_RESTART    0x10000000

#define SA_NODEFER    0x40000000

#define SA_RESETHAND  0x80000000

#define SA_RESTORER   0x04000000

#endif

#define SIGHUP    1

#define SIGINT    2

#define SIGQUIT   3

#define SIGILL    4

#define SIGTRAP   5

#define SIGABRT   6

#define SIGIOT    SIGABRT

#define SIGBUS    7

#define SIGFPE    8

#define SIGKILL   9

#define SIGUSR1   10

#define SIGSEGV   11

#define SIGUSR2   12

#define SIGPIPE   13

#define SIGALRM   14

#define SIGTERM   15

#define SIGSTKFLT 16

#define SIGCHLD   17

#define SIGCONT   18

#define SIGSTOP   19

#define SIGTSTP   20

#define SIGTTIN   21

#define SIGTTOU   22

#define SIGURG    23

#define SIGXCPU   24

#define SIGXFSZ   25

#define SIGVTALRM 26

#define SIGPROF   27

#define SIGWINCH  28

#define SIGIO     29

#define SIGPOLL   29

#define SIGPWR    30

#define SIGSYS    31

#define SIGUNUSED SIGSYS

#define _NSIG 65