diff --git a/common/widgets/mathplot.cpp b/common/widgets/mathplot.cpp
index 2fcf4cb9b0..1e16a7b49e 100644
--- a/common/widgets/mathplot.cpp
+++ b/common/widgets/mathplot.cpp
@@ -10,11 +10,6 @@
 // Licence:         wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#ifdef __GNUG__
-// #pragma implementation "plot.h"
-#pragma implementation "mathplot.h"
-#endif
-
 #include <wx/window.h>
 
 // Comment out for release operation:
diff --git a/include/widgets/mathplot.h b/include/widgets/mathplot.h
index ff5e837750..17b10a7967 100644
--- a/include/widgets/mathplot.h
+++ b/include/widgets/mathplot.h
@@ -58,10 +58,6 @@ Jose Luis Blanco, Val Greene.<br>
 #define WXDLLIMPEXP_DATA_MATHPLOT(type) type
 #endif
 
-#if defined(__GNUG__) && !defined(__APPLE__)
-#pragma interface "mathplot.h"
-#endif
-
 #include <vector>
 
 // #include <wx/wx.h>