--- /dev/null
+#ifndef __LUNAIX_SYS_SIGNAL_DEFS_H
+#define __LUNAIX_SYS_SIGNAL_DEFS_H
+
+#define SIGSEGV 1
+#define SIGALRM 2
+#define SIGCHLD 3
+#define SIGCLD SIGCHLD
+#define SIGINT 4
+#define SIGKILL 5
+#define SIGSTOP 6
+#define SIGCONT 7
+#define SIGTERM 8
+
+#define SIG_BLOCK 1
+#define SIG_UNBLOCK 2
+#define SIG_SETMASK 3
+
+typedef unsigned int sigset_t;
+typedef void (*sighandler_t)(int);
+
+#endif /* __LUNAIX_SIGNAL_DEFS_H */