+/* For systems such as HP/UX that do not provide PT_SYSCALL, define it
+ here as an alias for PT_CONTINUE. This is what the PT_SYSCALL
+ request is expected to do, in addition to stopping when entering/
+ exiting a system call. Chances are, if the system supports system
+ call tracing, enabling this feature is probably done separately;
+ and there is probably no special request that we would be required
+ to use when resuming the execution of our program. */
+#ifndef PT_SYSCALL
+# ifdef PTRACE_SYSCALL
+# define PT_SYSCALL PTRACE_SYSCALL
+#else
+# define PT_SYSCALL PT_CONTINUE
+# endif
+#endif
+