--- a/src/spectrum/model/microwave-oven-spectrum-value-helper.cc	Wed Mar 26 02:35:34 2014 +0400
+++ b/src/spectrum/model/microwave-oven-spectrum-value-helper.cc	Wed Mar 26 14:51:14 2014 +0400
@@ -26,11 +26,11 @@
 namespace ns3 {
 
 
-Ptr<SpectrumModel> g_MicrowaveOvenSpectrumModel5Mhz;
-Ptr<SpectrumModel> g_MicrowaveOvenSpectrumModel6Mhz;
+static Ptr<SpectrumModel> g_MicrowaveOvenSpectrumModel5Mhz;
+static Ptr<SpectrumModel> g_MicrowaveOvenSpectrumModel6Mhz;
 
 
-class MicrowaveOvenSpectrumModel5MhzInitializer
+static class MicrowaveOvenSpectrumModel5MhzInitializer
 {
 public:
   MicrowaveOvenSpectrumModel5MhzInitializer ()
@@ -52,7 +52,7 @@
 
 
 
-class MicrowaveOvenSpectrumModel6MhzInitializer
+static class MicrowaveOvenSpectrumModel6MhzInitializer
 {
 public:
   MicrowaveOvenSpectrumModel6MhzInitializer ()