build: added a missing INET_API macro causing a linker error on Windows

Some header files had to be rearranged.
Note: Compat.h is meant to be included automatically by INETDefs.h
so it should not be included manually in any files (except Compat.cc)

src/inet/common/Compat.cc

@@ -5,6 +5,7 @@
 //
 
 
+#include "inet/common/INETDefs.h"
 #include "inet/common/Compat.h"
 
 namespace inet {

src/inet/common/Compat.h

@@ -39,7 +39,7 @@ typedef int sharedcounterhandle_t;
  * This class encapsulates the "simulation-global variables" functionality which became
  * part of the cSimulation class in OMNeT++ 7.0.
  */
-class SharedDataManager : public omnetpp::cISimulationLifecycleListener
+class INET_API SharedDataManager : public omnetpp::cISimulationLifecycleListener
 {
  private:
  struct SharedDataHandles {
@@ -186,7 +186,7 @@ T& SharedDataManager::getSharedVariable(int handle, Args&&... args)
  * Supporting class for EXECUTE_PRE_NETWORK_SETUP() / EXECUTE_POST_NETWORK_DELETE(),
  * which didn't exist prior to OMNeT++ 7.0.
  */
-class CodeFragment
+class INET_API CodeFragment
 {
  private:
  omnetpp::SimulationLifecycleEventType lifecycleEvent;

src/inet/common/INETDefs.h

@@ -25,8 +25,6 @@
 // General definitions.
 //
 
-#include "inet/common/Compat.h"
-
 namespace inet {
 using namespace omnetpp;
 } // namespace inet
@@ -46,6 +44,7 @@ using namespace omnetpp;
 #define INET_API
 #endif // if defined(INET_EXPORT)
 
+#include "inet/common/Compat.h"
 #include "inet/common/InitStages.h"
 
 // main namespace of INET framework

src/inet/visualizer/base/QueueVisualizerBase.h

@@ -8,7 +8,7 @@
 #ifndef __INET_QUEUEVISUALIZERBASE_H
 #define __INET_QUEUEVISUALIZERBASE_H
 
-#include "inet/common/Compat.h"
+#include "inet/common/INETDefs.h"
 #include "inet/queueing/contract/IPacketQueue.h"
 #include "inet/visualizer/base/VisualizerBase.h"
 #include "inet/visualizer/util/Placement.h"