nstrftime: parenthesize macro body

diff --git a/lib/strftime.c b/lib/strftime.c
index 41e7c5477ce83be9db63df40f819650ead3e6842..a78b9b8cef41a78ce8f6ff8d27b2051fa1048d56 100644 (file)
--- a/lib/strftime.c
+++ b/lib/strftime.c
@@ -225,7 +225,7 @@ typedef size_t retval_t;
 # define FAILURE 0
 #else
 typedef sbyte_count_t retval_t;
-# define FAILURE -1
+# define FAILURE (-1)
 #endif
 
 #if FPRINTFTIME