diff --git xclock-clean/Clock.c xclock-workdir/Clock.c
index de6beb6..6d726ef 100644
--- xclock-clean/Clock.c
+++ xclock-workdir/Clock.c
@@ -1292,7 +1292,7 @@ static void
 round_time(float _update, struct tm *tm, struct timeval *tv)
 {
     /* interval in milliseconds */
-    unsigned long update = (int) (_update * 1000.0 + 0.5);
+    unsigned long update = roundf(_update * 1000.0 + 0.5);
 
     /* compute milliseconds since midnight */
     unsigned long old_secs = time_seconds(tm);
diff --git xclock-clean/configure.ac xclock-workdir/configure.ac
index 7d9847b..e15fecd 100644
--- xclock-clean/configure.ac
+++ xclock-workdir/configure.ac
@@ -41,8 +41,6 @@ XORG_DEFAULT_OPTIONS
 
 AC_CHECK_FUNCS([strlcpy getpid nl_langinfo])
 
-AM_ICONV
-
 dnl Required dependencies
 PKG_CHECK_MODULES(XCLOCK, [xaw7 xmu x11 xproto >= 7.0.17])
 XCLOCK_LIBS="$XCLOCK_LIBS $LIBICONV"