Style

src/includes/rc-misc.h

@@ -91,6 +91,18 @@
 #  endif
 #endif
 
+#ifndef timespecsub
+#define	timespecsub(tsp, usp, vsp)					      \
+	do {								      \
+		(vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec;		      \
+		(vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec;	      \
+		if ((vsp)->tv_nsec < 0) {				      \
+			(vsp)->tv_sec--;				      \
+			(vsp)->tv_nsec += 1000000000L;			      \
+		}							      \
+	} while (/* CONSTCOND */ 0)
+#endif
+
 _unused static void *xmalloc (size_t size)
 {
 	void *value = malloc(size);