Additions to includes

Cython/Includes/libc/setjmp.pxd

@@ -3,3 +3,8 @@ cdef extern from "setjmp.h" nogil:
         pass
     int setjmp(jmp_buf state)
     void longjmp(jmp_buf state, int value)
+
+    ctypedef struct sigjmp_buf:
+        pass
+    int sigsetjmp(sigjmp_buf state, int savesigs)
+    void siglongjmp(sigjmp_buf state, int value)

Cython/Includes/posix/select.pxd

+from .types cimport sigset_t
+from .time cimport timeval, timespec
+
+cdef extern from "sys/select.h" nogil:
+    ctypedef struct fd_set:
+        pass
+
+    int FD_SETSIZE
+    void FD_SET(int, fd_set*)
+    void FD_CLR(int, fd_set*)
+    bint FD_ISSET(int, fd_set*)
+    void FD_ZERO(fd_set*)
+
+    int select(int nfds, fd_set *readfds, fd_set *writefds,
+        fd_set *exceptfds, const timeval *timeout)
+
+    int pselect(int nfds, fd_set *readfds, fd_set *writefds,
+        fd_set *exceptfds, const timespec *timeout,
+        const sigset_t *sigmask)

Cython/Includes/posix/signal.pxd

@@ -12,7 +12,7 @@ cdef extern from "signal.h" nogil:
         int    sigev_notify
         int    sigev_signo
         sigval sigev_value
-        void   *sigev_notify_function(sigval)
+        void   sigev_notify_function(sigval)
 
     ctypedef struct siginfo_t:
         int    si_signo
@@ -26,10 +26,10 @@ cdef extern from "signal.h" nogil:
         sigval si_value
 
     cdef struct sigaction_t "sigaction":
-        void     *sa_handler(int)
+        void     sa_handler(int)
+        void     sa_sigaction(int, siginfo_t *, void *)
         sigset_t sa_mask
         int      sa_flags
-        void     sa_sigaction(int, siginfo_t *, void *)
 
     enum: SA_NOCLDSTOP
     enum: SIG_BLOCK