fix compile without fourier model

Geo/GModel.h

@@ -55,6 +55,12 @@ class GModel
   void _deleteOCCInternals();
 #endif
 
+  FM_Internals *_fm_internals;
+#if !defined(HAVE_GMSH_EMBEDDED)
+  void _createFMInternals();
+  void _deleteFMInternals();
+#endif
+ 
   // Characteristic Lengths fields
   FieldManager *_fields;
 
@@ -69,10 +75,6 @@ class GModel
   // index of the current model
   static int _current;
 
-  FM_Internals *_fm_internals;
-  void createFMInternals();
-  void deleteFMInternals();
- 
  protected:
   std::string modelName;
   std::set<GRegion*, GEntityLessThan> regions;
@@ -100,9 +102,9 @@ class GModel
   void destroy();
 
   // Access internal CAD representations
-  FM_Internals *getFMInternals() { return _fm_internals; }
   GEO_Internals *getGEOInternals(){ return _geo_internals; }
   OCC_Internals *getOCCInternals(){ return _occ_internals; }
+  FM_Internals *getFMInternals() { return _fm_internals; }
 
   // Access characteristic length fields
   FieldManager *getFields(){ return _fields; }

Geo/GModelIO_Fourier.cpp

@@ -93,13 +93,13 @@ void FM_Internals::buildGModel(FM::Reader* reader, GModel* model)
     makeGFace(reader->GetPatch(i), model);
 }
 
-void GModel::createFMInternals()
+void GModel::_createFMInternals()
 {
   if (!_fm_internals)
     _fm_internals = new FM_Internals;  
 }
 
-void GModel::deleteFMInternals()
+void GModel::_deleteFMInternals()
 {
   delete _fm_internals;
   _fm_internals = 0;
@@ -107,13 +107,13 @@ void GModel::deleteFMInternals()
 
 int GModel::readFourier()
 {
-  createFMInternals();
+  _createFMInternals();
   getFMInternals()->loadFM();
 }
 
 int GModel::readFourier(const std::string &filename)
 {
-  createFMInternals();
+  _createFMInternals();
   getFMInternals()->loadFM(filename.c_str());
   getFMInternals()->buildGModel(getFMInternals()->current(),this);
 
@@ -127,6 +127,14 @@ int GModel::writeFourier(const std::string &filename)
 
 #else
 
+void GModel::_createFMInternals()
+{
+}
+
+void GModel::_deleteFMInternals()
+{
+}
+
 int GModel::readFourier(const std::string &fn)
 {
   Msg::Error("Gmsh has to be compiled with Fourier Model support to load '%s'",