--- ht-2.1.0.org/htapp.cc	2014-09-14 16:55:26.000000000 +0100
+++ ht-2.1.0/htapp.cc	2018-03-10 12:48:07.158533800 +0000
@@ -3023,7 +3023,7 @@
 {
 	uint a = 2;
 	uint b = u/a;
-	while (abs(a - b) > 1) {
+	while (abs((int)(a - b)) > 1) {
 		a = (a+b)/2;
 		b = u/a;
         }