typed-constant SIG_DFL {void(*)(int)}
typed-constant SIG_ERR {void(*)(int)}
#if !defined ISO && !defined POSIX && !defined POSIX2008
typed-constant SIG_HOLD {void(*)(int)}
#endif
typed-constant SIG_IGN {void(*)(int)}

type sig_atomic_t
type sigset_t
type pid_t
#if defined XOPEN2K8 || defined POSIX2008
type size_t
type pthread_t
type uid_t

type mcontext_t

type ucontext_t
element ucontext_t {ucontext_t*} uc_link
element ucontext_t sigset_t uc_sigmask
element ucontext_t stack_t uc_stack
element ucontext_t mcontext_t uc_mcontext

type {struct timespec}
element {struct timespec} __time_t tv_sec
element {struct timespec} long tv_nsec
#endif

element {union sigval} int sival_int
element {union sigval} {void*} sival_ptr

type {struct sigevent}

// Test the elements of the sigevent_t structure.
element {struct sigevent} int sigev_notify
element {struct sigevent} int sigev_signo
element {struct sigevent} {union sigval} sigev_value
element {struct sigevent} {void(*} sigev_notify_function )(union sigval)
element {struct sigevent} {pthread_attr_t*} sigev_notify_attributes

constant SIGEV_NONE
constant SIGEV_SIGNAL
constant SIGEV_THREAD

type {union sigval}

macro SIGRTMIN
macro SIGRTMAX

constant SIGABRT
constant SIGALRM
constant SIGFPE
constant SIGHUP
constant SIGILL
constant SIGINT
constant SIGIO
constant SIGKILL
constant SIGPIPE
constant SIGQUIT
constant SIGSEGV
constant SIGTERM
constant SIGUSR1
constant SIGUSR2
constant SIGCHLD
constant SIGCONT
constant SIGSTOP
constant SIGTSTP
constant SIGTTIN
constant SIGTTOU
constant SIGBUS
constant SIGPOLL
constant SIGPROF
constant SIGSYS
#if !defined POSIX && !defined POSIX2008
constant SIGTRAP
#endif
constant SIGURG
constant SIGVTALRM
constant SIGXCPU
constant SIGXFSZ

type {struct sigaction}

element {struct sigaction} {void(*} sa_handler )(int)
element {struct sigaction} sigset_t sa_mask
element {struct sigaction} int sa_flags
element {struct sigaction} {void(*} sa_sigaction )(int, siginfo_t*, void*)

constant SA_NOCLDSTOP
constant SIG_BLOCK
constant SIG_UNBLOCK
constant SIG_SETMASK
#if !defined POSIX && !defined POSIX2008
constant SA_ONSTACK
#endif
constant SA_RESETHAND
constant SA_RESTART
constant SA_SIGINFO
constant SA_NOCLDWAIT
constant SA_NODEFER
#if !defined POSIX && !defined POSIX2008
constant SS_ONSTACK
constant SS_DISABLE
constant MINSIGSTKSZ
constant SIGSTKSZ
#endif

type ucontext_t

element ucontext_t {ucontext_t*} uc_link
element ucontext_t sigset_t uc_sigmask
element ucontext_t stack_t uc_stack
element ucontext_t mcontext_t uc_mcontext

type stack_t

element stack_t {void*} ss_sp
element stack_t size_t ss_size
element stack_t int ss_flags

type {struct sigstack}

element {struct sigstack} int ss_onstack
element {struct sigstack} {void*} ss_sp

type siginfo_t

element siginfo_t int si_signo
#if !defined POSIX && !defined POSIX2008
element siginfo_t int si_errno
#endif
element siginfo_t int si_code
element siginfo_t pid_t si_pid
element siginfo_t uid_t si_uid
element siginfo_t {void*} si_addr
element siginfo_t int si_status
element siginfo_t long si_band
element siginfo_t {union sigval} si_value

constant ILL_ILLOPC
constant ILL_ILLOPN
constant ILL_ILLADR
constant ILL_ILLTRP
constant ILL_PRVOPC
constant ILL_PRVREG
constant ILL_COPROC
constant ILL_BADSTK
constant FPE_INTDIV
constant FPE_INTOVF
constant FPE_FLTDIV
constant FPE_FLTOVF
constant FPE_FLTUND
constant FPE_FLTRES
constant FPE_FLTINV
constant FPE_FLTSUB
constant SEGV_MAPERR
constant SEGV_ACCERR
constant BUS_ADRALN
constant BUS_ADRERR
constant BUS_OBJERR
constant TRAP_BRKPT
constant TRAP_TRACE
constant CLD_EXITED
constant CLD_KILLED
constant CLD_DUMPED
constant CLD_TRAPPED
constant CLD_STOPPED
constant CLD_CONTINUED
constant POLL_IN
constant POLL_OUT
constant POLL_MSG
constant POLL_ERR
constant POLL_PRI
constant POLL_HUP
constant SI_USER
constant SI_QUEUE
constant SI_TIMER
constant SI_ASYNCIO
constant SI_MESGQ

#if !defined XOPEN2K8 && !defined POSIX && !defined POSIX2008
function void (*bsd_signal (int, void(*)(int)))(int)
#endif
function int kill (pid_t, int)
#if !defined POSIX && !defined POSIX2008
function int killpg (pid_t, int)
#endif
function int pthread_kill (pthread_t, int)
function int pthread_sigmask (int, const sigset_t*, sigset_t*)
function int raise (int)
function int sigaction (int, const struct sigaction*, struct sigaction*)
function int sigaddset (sigset_t*, int)
#if !defined POSIX && !defined POSIX2008
function int sigaltstack (const stack_t*, stack_t*)
#endif
function int sigdelset (sigset_t*, int)
function int sigemptyset (sigset_t*)
function int sigfillset (sigset_t*)
#if !defined POSIX && !defined POSIX2008
function int sighold (int)
function int sigignore (int)
function int siginterrupt (int, int)
#endif
function int sigismember (const sigset_t*, int)
function void (*signal (int, void(*)(int)))(int)
#if !defined POSIX && !defined POSIX2008
function int sigpause (int)
#endif
function int sigpending (sigset_t*)
function int sigprocmask (int, const sigset_t*, sigset_t*)
function int sigqueue (pid_t, int, const union sigval)
#if !defined POSIX && !defined POSIX2008
function int sigrelse (int)
function void (*sigset (int, void(*)(int)))(int)
#endif
function int sigstack (struct sigstack*, struct sigstack*)
function int sigsuspend (const sigset_t*)
function int sigtimedwait (const sigset_t*, siginfo_t*, const struct timespec*)
function int sigwait (const sigset_t*, int*)
function int sigwaitinfo (const sigset_t*, siginfo_t*)
#if defined XOPEN2K8 || defined POSIX2008
function void psiginfo (const siginfo_t*, const char*)
function void psignal (int, const char*)
#endif

// The following expressions are not entirely correct but the current
// poorfnmatch implementation doesn't grok the right form.
allow SIG*
allow sa_*
allow uc_*
allow ss_*
allow sv_*
allow si_*
allow SI_*
allow sigev_*
allow SIGEV_*
allow sival_*
allow SA_*
allow BUS_*
allow CLD_*
allow FPE_*
allow ILL_*
allow POLL_*
allow SEGV_*
allow SS_*
allow SV_*
allow TRAP_*
allow *_t

allow-header time.h