--- /dev/null
+#include <lunaix/syscall.h>
+#include <usr/signal.h>
+
+__LXSYSCALL2(int, signal, int, signum, sighandler_t, handler);
+
+__LXSYSCALL1(int, sigpending, sigset_t, *set);
+__LXSYSCALL1(int, sigsuspend, const sigset_t, *mask);
+
+__LXSYSCALL3(int,
+ sigprocmask,
+ int,
+ how,
+ const sigset_t,
+ *set,
+ sigset_t,
+ *oldset);