--- SimGear.orig/simgear/scene/sky/cloudfield.hxx	2009-11-26 18:24:02.000000000 +0100
+++ SimGear/simgear/scene/sky/cloudfield.hxx	2010-01-31 23:41:12.835644019 +0100
@@ -31,6 +31,7 @@
 
 #include <osg/ref_ptr>
 #include <osg/Array>
+#include <osg/Fog>
 #include <osg/Geometry>
 #include <osg/Group>
 #include <osg/Switch>
@@ -89,7 +90,11 @@
         int reposition_count;
         struct CloudFog : public simgear::Singleton<CloudFog>
         {
-                CloudFog();
+                CloudFog() {
+		    fog = new osg::Fog;
+		    fog->setMode(osg::Fog::EXP2);
+		    fog->setDataVariance(osg::Object::DYNAMIC);
+		}
                 osg::ref_ptr<osg::Fog> fog;
         };
 public:
--- SimGear.orig/simgear/scene/sky/cloudfield.cxx	2010-01-23 12:40:43.000000000 +0100
+++ SimGear/simgear/scene/sky/cloudfield.cxx	2010-01-31 23:37:42.707739218 +0100
@@ -287,13 +287,6 @@
     }
 }
 
-SGCloudField::CloudFog::CloudFog()
-{
-    fog = new osg::Fog;
-    fog->setMode(osg::Fog::EXP2);
-    fog->setDataVariance(osg::Object::DYNAMIC);
-}
-
 void SGCloudField::updateFog(double visibility, const osg::Vec4f& color)
 {
     const double sqrt_m_log01 = sqrt(-log(0.01));