1. more HP-UX warning fixes (almost done...)

2. added a macro WXUNUSED_UNLESS_DEBUG()


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5273 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/datetime.inl

@@ -362,10 +362,10 @@ wxDateTime wxDateTime::ToTimezone(const wxDateTime::TimeZone& tz,
 // wxTimeSpan construction
 // ----------------------------------------------------------------------------
 
-wxTimeSpan::wxTimeSpan(int hours, int minutes, int seconds, int milliseconds)
+wxTimeSpan::wxTimeSpan(long hours, long minutes, long seconds, long milliseconds)
 {
     // assign first to avoid precision loss
-    m_diff = (long)hours;
+    m_diff = hours;
     m_diff *= 60l;
     m_diff += minutes;
     m_diff *= 60l;