Fixing wxMicroWindows compilation

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@12745 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/imagxpm.cpp

@@ -77,6 +77,7 @@ license is as follows:
 #  include "wx/defs.h"
 #endif
 
+#if wxUSE_XPM
 
 #include "wx/imagxpm.h"
 #include "wx/wfstream.h"
@@ -221,3 +222,4 @@ bool wxXPMHandler::DoCanRead(wxInputStream& stream)
 
 #endif  // wxUSE_STREAMS
 
+#endif // wxUSE_XPM