Use defs.h (and automatically setup.h and chkconf.h) before first wxUSE_* check (bug #1164141).

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@32852 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/imagtiff.h

@@ -14,6 +14,14 @@
 #pragma interface "imagtiff.h"
 #endif
 
+#include "wx/defs.h"
+
+//-----------------------------------------------------------------------------
+// wxTIFFHandler
+//-----------------------------------------------------------------------------
+
+#if wxUSE_LIBTIFF
+
 #include "wx/image.h"
 
 // defines for wxImage::SetOption
@@ -22,11 +30,6 @@
 #define wxIMAGE_OPTION_COMPRESSION                 wxString(_T("Compression"))
 #define wxIMAGE_OPTION_IMAGEDESCRIPTOR             wxString(_T("ImageDescriptor"))
 
-//-----------------------------------------------------------------------------
-// wxTIFFHandler
-//-----------------------------------------------------------------------------
-
-#if wxUSE_LIBTIFF
 class WXDLLEXPORT wxTIFFHandler: public wxImageHandler
 {
 public:
@@ -42,9 +45,8 @@ public:
 private:
     DECLARE_DYNAMIC_CLASS(wxTIFFHandler)
 };
-#endif
 
+#endif // wxUSE_LIBTIFF
 
-#endif
-  // _WX_IMAGTIFF_H_
+#endif // _WX_IMAGTIFF_H_