diff --git a/cg/conto.cpp b/cg/conto.cpp
index 93ff1d1db..7e9e217fc 100755
--- a/cg/conto.cpp
+++ b/cg/conto.cpp
@@ -339,4 +339,3 @@ const char* TBill::string(int mode) const
   return s;
 }
 
-
diff --git a/cg/saldacon.cpp b/cg/saldacon.cpp
index c0d46bdb1..4db704a78 100755
--- a/cg/saldacon.cpp
+++ b/cg/saldacon.cpp
@@ -311,6 +311,10 @@ TRiga_scadenze::TRiga_scadenze(const TRiga_scadenze& s)
 : TTree_rectype(s), _riga(s._riga)
 {} 
 
+TRiga_scadenze::~TRiga_scadenze()
+{
+} 
+
 TObject* TRiga_scadenze::dup() const
 {
   TRiga_scadenze* r = new TRiga_scadenze(*this);
@@ -596,6 +600,10 @@ TRiga_partite::TRiga_partite(const TRiga_partite& r)
   update_rigaptr();
 }  
 
+TRiga_partite::~TRiga_partite()
+{}
+
+
 void TRiga_partite::update_rigaptr()
 {
   for (int i = rate(); i >= 0; i--)
@@ -909,6 +917,10 @@ TPartita::TPartita(const TRectype& r)
   read(clifo, anno, num); 
 }
 
+TPartita::~TPartita()
+{
+}
+
 const char* TPartita::build_key(TString& key) const
 {
   if (_conto.tipo() > ' ')
diff --git a/cg/saldacon.h b/cg/saldacon.h
index e157e78ea..7afe8d4be 100755
--- a/cg/saldacon.h
+++ b/cg/saldacon.h
@@ -165,7 +165,7 @@ public:
 
   TRiga_scadenze(TRiga_partite* riga);
   TRiga_scadenze(const TRiga_scadenze& s);
-  virtual ~TRiga_scadenze() {}
+  virtual ~TRiga_scadenze();
 };
 
 enum tipo_movimento { tm_nessuno = 0, tm_fattura = 1, tm_nota_credito = 2, 
@@ -213,7 +213,7 @@ public:
 
   TRiga_partite(TPartita* game);
   TRiga_partite(const TRiga_partite& r);
-  virtual ~TRiga_partite() {}
+  virtual ~TRiga_partite();
 };
 
 
@@ -232,8 +232,6 @@ class TPartita : public TSortable
   static char _cli_align, _for_align;  // default _num alignment
 
 protected:
-  const char* build_key(TString& key) const;
-
   char allineamento_iniziale() const { return _align; }
   char allineamento_corrente() const;
   
@@ -292,6 +290,7 @@ public:
   int anno() const { return _anno; }
   const TString& numero() const { return _num; }
   const TString& descrizione() const;
+  const char* build_key(TString& key) const;
 
   TImporto importo_speso(long numreg, int numrig, bool valuta, int mode = 0xF) const;
   void update_reg(long nreg, const TRectype& mov, TPartite_array& pa);
@@ -315,6 +314,7 @@ public:
 
   TPartita(const TBill& clifo, int anno, const char* num);
   TPartita(const TRectype& part);
+  virtual ~TPartita();
 };           
 
 class TPartite_array : private TAssoc_array