Cancelcheck: don't declare the static unique instance in .h, seems wrong on windows

src/utils/cancelcheck.cpp

@@ -0,0 +1,24 @@
+/* Copyright (C) 2005 J.F.Dockes
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the
+ *   Free Software Foundation, Inc.,
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#include "cancelcheck.h"
+
+CancelCheck& CancelCheck::instance()
+{
+    static CancelCheck ck;
+    return ck;
+}

src/utils/cancelcheck.h

@@ -39,10 +39,7 @@ class CancelExcept {};
 
 class CancelCheck {
  public:
-    static CancelCheck& instance() {
-	static CancelCheck ck;
-	return ck;
-    }
+    static CancelCheck& instance();
     void setCancel(bool on = true) {
 	cancelRequested = on;
     }