diff --git a/newlib/ChangeLog b/newlib/ChangeLog
index 29bd68cc0..087e6a655 100644
--- a/newlib/ChangeLog
+++ b/newlib/ChangeLog
@@ -1,3 +1,7 @@
+2003-01-29  Jason Tishler  <jason@tishler.net>
+
+	* libc/include/time.h: Declare nanosleep() under Cygwin.
+
 2003-01-24  Nick Clifton  <nickc@redhat.com>
 
 	* Add sh2e support:
diff --git a/newlib/libc/include/time.h b/newlib/libc/include/time.h
index 53e3c4e89..f83c38d05 100644
--- a/newlib/libc/include/time.h
+++ b/newlib/libc/include/time.h
@@ -163,6 +163,16 @@ int _EXFUN(nanosleep, (const struct timespec  *rqtp, struct timespec *rmtp));
 #ifdef __cplusplus
 }
 #endif
+#else
+#ifdef __CYGWIN__
+#ifdef __cplusplus
+extern "C" {
+#endif
+int _EXFUN(nanosleep, (const struct timespec  *rqtp, struct timespec *rmtp));
+#ifdef __cplusplus
+}
+#endif
+#endif /* __CYGWIN__ */
 #endif /* _POSIX_TIMERS */
 
 #ifdef __cplusplus