Formerly ../signal/signal.h.~15~

diff --git a/signal/signal.h b/signal/signal.h
index e229ac8..23fe21e 100644 (file)
--- a/signal/signal.h
+++ b/signal/signal.h
@@ -30,6 +30,9 @@ Cambridge, MA 02139, USA.  */
 #include <gnu/types.h>
 #include <gnu/signal.h>
 
+#define         __need_size_t
+#include <stddef.h>
+
 #if    !defined(__sig_atomic_t_defined) &&     \
   (defined(_SIGNAL_H) || defined(__need_sig_atomic_t))
 /* An integral type that can be modified atomically, without the
@@ -157,6 +160,7 @@ extern int EXFUN(sigsuspend, (CONST sigset_t *__set));
 #ifdef __USE_BSD
 #define        SA_ONSTACK      __SA_ONSTACK    /* Take signal on signal stack.  */
 #define        SA_RESTART      __SA_RESTART    /* No syscall restart on sig ret.  */
+#define        SA_DISABLE      __SA_DISABLE    /* Disable alternate signal stack.  */
 #endif
 #define        SA_NOCLDSTOP    __SA_NOCLDSTOP  /* No SIGCHLD when children stop.  */
 
@@ -231,6 +235,16 @@ struct sigstack
 extern int EXFUN(sigstack, (CONST struct sigstack *__ss,
                            struct sigstack *__oss));
 
+/* Alternate interface.  */
+struct sigaltstack
+  {
+    PTR ss_sp;
+    size_t ss_size;
+    int ss_flags;
+  };
+
+extern int EXFUN(sigaltstack, (CONST struct sigaltstack *__ss,
+                              struct sigaltstack *__oss));
 
 /* Get machine-dependent `struct sigcontext' and signal subcodes.  */
 #include <sigcontext.h>