1 files changed, 4 insertions, 0 deletions
diff --git a/timespec.h b/timespec.h
index 8d36a9ec..1ff7a6df 100644
--- a/timespec.h
+++ b/timespec.h
@@ -6,6 +6,8 @@
 #ifndef GPSD_TIMESPEC_H
 #define GPSD_TIMESPEC_H
 
+#include <stdbool.h>       /* for bool */
+
 /* normalize a timespec
  *
  * three cases to note
@@ -103,6 +105,8 @@ static inline void TS_NORM( struct timespec *ts)
 
 extern void timespec_str(const struct timespec *, char *, size_t);
 
+bool nanowait(int, int);
+
 #endif /* GPSD_TIMESPEC_H */
 
 /* end */