Made the version conflict error message a bit more helpful

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@17367 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/appcmn.cpp

@@ -446,8 +446,23 @@ bool wxAppBase::CheckBuildOptions(const wxBuildOptions& opts)
 
     if ( !(wxCMP(isDebug) && wxCMP(verMaj) && wxCMP(verMin)) )
     {
-        wxLogFatalError(_T("Mismatch between the program and library build ")
-                        _T("versions detected."));
+        wxString msg;
+        wxString libDebug, progDebug;
+
+        if (isDebug)
+            libDebug = wxT("debug");
+        else
+            libDebug = wxT("no debug");
+
+        if (opts.m_isDebug)
+            progDebug = wxT("debug");
+        else
+            progDebug = wxT("no debug");
+        
+        msg.Printf(_T("Mismatch between the program and library build versions detected.\nThe library used %d.%d (%s), and your program used %d.%d (%s)."),
+                   verMaj, verMin, libDebug.c_str(), opts.m_verMaj, opts.m_verMin, progDebug.c_str());
+        
+        wxLogFatalError(msg);
 
         // normally wxLogFatalError doesn't return
         return FALSE;