-#define NSIG 17
-
-#define SIGHUP 1 /* hangup */
-#define SIGINT 2 /* interrupt */
-#define SIGQUIT 3 /* quit */
-#define SIGILL 4 /* illegal instruction (not reset when caught) */
-#define SIGTRAP 5 /* trace trap (not reset when caught) */
-#define SIGIOT 6 /* IOT instruction */
-#define SIGEMT 7 /* EMT instruction */
-#define SIGFPE 8 /* floating point exception */
-#define SIGKILL 9 /* kill (cannot be caught or ignored) */
-#define SIGBUS 10 /* bus error */
-#define SIGSEGV 11 /* segmentation violation */
-#define SIGSYS 12 /* bad argument to system call */
-#define SIGPIPE 13 /* write on a pipe with no one to read it */
-#define SIGALRM 14 /* alarm clock */
-#define SIGTERM 15 /* software termination signal from kill */
-
-int (*signal())();
-#define SIG_DFL (int (*)())0
-#define SIG_IGN (int (*)())1