Compiler warnings.

src/base/cba/cbaCom.c

@@ -251,7 +251,7 @@ usage:
 int Cba_CommandBlast( Abc_Frame_t * pAbc, int argc, char ** argv )
 {
     Cba_Ntk_t * pNtk = Cba_AbcGetNtk(pAbc);
-    Vec_Int_t * vBoxIds = NULL;
+    //Vec_Int_t * vBoxIds = NULL;
     Gia_Man_t * pNew = NULL;
     int c, fMulti = 0, fVerbose  = 0;
     Extra_UtilGetoptReset();

src/base/cba/cbaPrs.h

@@ -104,7 +104,7 @@ struct Cba_Prs_t_
 static inline int Cba_PrsErrorSet( Cba_Prs_t * p, char * pError, int Value )
 {
     assert( !p->ErrorStr[0] );
-    sprintf( p->ErrorStr, pError );
+    sprintf( p->ErrorStr, "%s", pError );
     return Value;
 }
 // print error message

src/proof/int/intUtil.c

@@ -49,7 +49,7 @@ int Inter_ManCheckInitialState( Aig_Man_t * p )
     Aig_Obj_t * pObj;
     sat_solver * pSat;
     int i, status;
-    abctime clk = Abc_Clock();
+    //abctime clk = Abc_Clock();
     pCnf = Cnf_Derive( p, Saig_ManRegNum(p) ); 
     pSat = (sat_solver *)Cnf_DataWriteIntoSolver( pCnf, 1, 1 );
     if ( pSat == NULL )