extern char *version_string;
extern struct tm *localtime ();
extern int sys_nerr;
-#if defined(bsd4_4)
+#if defined(bsd4_4) || defined(__NetBSD__)
extern const char *const sys_errlist[];
#else
extern char *sys_errlist[];
extern int errno;
#endif
-#if defined(bsd4_4)
+#if defined(bsd4_4) || defined(__NetBSD__)
extern const char *const sys_errlist[];
#else
extern char *sys_errlist[];
extern char *getenv ();
extern int errno, sys_nerr;
-#if defined(bsd4_4)
+#if defined(bsd4_4) || defined(__NetBSD__)
extern const char *const sys_errlist[];
#else
extern char *sys_errlist[];
#undef getopt
extern int errno;
-#if defined(bsd4_4)
+#if defined(bsd4_4) || defined(__NetBSD__)
extern const char *const sys_errlist[];
#else
extern char *sys_errlist[];