HP-UX compilation fix

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_2_BRANCH@7627 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/motif/dcmemory.h

@@ -34,7 +34,7 @@ public:
     wxBitmap& GetBitmap() const { return (wxBitmap&) m_bitmap; }
 
 private:
-    friend wxPaintDC;
+    friend class wxPaintDC;
 
     wxBitmap  m_bitmap;
 };

src/motif/dcclient.cpp

@@ -323,7 +323,7 @@ void wxWindowDC::DoDrawArc( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCo
 
     wxCoord dx = xx1 - xxc;
     wxCoord dy = yy1 - yyc;
-    double radius = sqrt (dx * dx + dy * dy);
+    double radius = sqrt ((double)(dx * dx + dy * dy));
     wxCoord r = (wxCoord) radius;
 
     double radius1, radius2;