#define netdissect_timevalisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec)
-#define netdissect_timevalcmp(tvp, uvp, cmp) \
+#define netdissect_timevalcmp(tvp, uvp, cmp) \
(((tvp)->tv_sec == (uvp)->tv_sec) ? \
((tvp)->tv_usec cmp (uvp)->tv_usec) : \
((tvp)->tv_sec cmp (uvp)->tv_sec))