1 files changed, 6 insertions, 0 deletions
diff --git a/src/times.h b/src/times.h
index 6eadcad3..e3134665 100644
--- a/src/times.h
+++ b/src/times.h
@@ -218,6 +218,9 @@ struct date_duration_t
     case YEARS:
       return date + gregorian::years(length);
     }
+#if !defined(__clang__)
+    return date_t();
+#endif
   }
 
   date_t subtract(const date_t& date) const {
@@ -233,6 +236,9 @@ struct date_duration_t
     case YEARS:
       return date - gregorian::years(length);
     }
+#if !defined(__clang__)
+    return date_t();
+#endif
   }
 
   string to_string() const {