diff --git a/ChangeLog b/ChangeLog
index 3f25c119..45f1ef6c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2005-01-01  Havoc Pennington  <hp@redhat.com>
+
+	* configure.in: add -Wfloat-equal
+
 2005-01-01  Havoc Pennington  <hp@redhat.com>
 
 	* dbus/dbus-sysdeps.h: add _DBUS_DOUBLES_BITWISE_EQUAL macro, 
diff --git a/configure.in b/configure.in
index dcb8d450..67b2dfa9 100644
--- a/configure.in
+++ b/configure.in
@@ -105,6 +105,11 @@ if test "x$GCC" = "xyes"; then
   *) CFLAGS="$CFLAGS -Wcast-align" ;;
   esac
 
+  case " $CFLAGS " in
+  *[\ \	]-Wfloat-equal[\ \	]*) ;;
+  *) CFLAGS="$CFLAGS -Wfloat-equal" ;;
+  esac
+
   case " $CFLAGS " in
   *[\ \	]-Wsign-compare[\ \	]*) ;;
   *) CFLAGS="$CFLAGS -Wsign-compare" ;;