added wxUSE_TASKBARICON; corrected condition for generating the taskbar sample makefile in configure

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@47557 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/taskbar.cpp

@@ -12,6 +12,8 @@
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
+#if wxUSE_TASKBARICON
+
 #include "wx/gtk/taskbarpriv.h"
 
 #ifndef WX_PRECOMP
@@ -144,3 +146,5 @@ bool wxTaskBarIconAreaBase::DoPopupMenu( wxMenu *menu, int x, int y )
 
 #endif // __WXGTK20__
 #endif // GTK_CHECK_VERSION(2, 1, 0)
+
+#endif // wxUSE_TASKBARICON