added at least some stderr support to wxMGL which suffers badly from MGL's hostile takeover of stdin and stderr

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@11792 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/mgl/app.cpp

@@ -18,12 +18,14 @@
     #pragma hdrstop
 #endif
 
+
 #ifndef WX_PRECOMP
     #include "wx/settings.h"
     #include "wx/module.h"
     #include "wx/evtloop.h"
     #include "wx/frame.h"
     #include "wx/dialog.h"
+    #include "wx/log.h"
     #include "wx/intl.h"
 #endif
 
@@ -31,6 +33,12 @@
 #include "wx/fontutil.h"
 #include "wx/mgl/private.h"
 
+#define MGL_DEBUG
+
+#if defined(MGL_DEBUG) && !defined(__WXDEBUG__)
+#undef MGL_DEBUG
+#endif
+
 //-----------------------------------------------------------------------------
 // Global data
 //-----------------------------------------------------------------------------
@@ -146,6 +154,12 @@ bool wxApp::OnInitGui()
     if ( !wxAppBase::OnInitGui() )
         return FALSE;
 
+#ifdef MGL_DEBUG
+    // That damn MGL redirects stdin and stdout to physical console
+    FILE *file = fopen("stderr", "wt");
+    wxLog::SetActiveTarget(new wxLogStderr(file));
+#endif
+
     return TRUE;
 }