diff --git a/MMVII/ExternalInclude/eigen-3.4.0/Eigen/src/SparseCore/TriangularSolver.h b/MMVII/ExternalInclude/eigen-3.4.0/Eigen/src/SparseCore/TriangularSolver.h
index f9c56ba798..6b5fdb3e6e 100644
--- a/MMVII/ExternalInclude/eigen-3.4.0/Eigen/src/SparseCore/TriangularSolver.h
+++ b/MMVII/ExternalInclude/eigen-3.4.0/Eigen/src/SparseCore/TriangularSolver.h
@@ -270,11 +270,9 @@ struct sparse_solve_triangular_sparse_selector<Lhs,Rhs,Mode,UpLo,ColMajor>
       }
 
 
-      Index count = 0;
       // FIXME compute a reference value to filter zeros
       for (typename AmbiVector<Scalar,StorageIndex>::Iterator it(tempVector/*,1e-12*/); it; ++it)
       {
-        ++ count;
 //         std::cerr << "fill " << it.index() << ", " << col << "\n";
 //         std::cout << it.value() << "  ";
         // FIXME use insertBack
diff --git a/MMVII/ExternalInclude/eigen-3.4.0/Eigen/src/SparseLU/SparseLU_heap_relax_snode.h b/MMVII/ExternalInclude/eigen-3.4.0/Eigen/src/SparseLU/SparseLU_heap_relax_snode.h
index 6f75d500e5..07768725e1 100644
--- a/MMVII/ExternalInclude/eigen-3.4.0/Eigen/src/SparseLU/SparseLU_heap_relax_snode.h
+++ b/MMVII/ExternalInclude/eigen-3.4.0/Eigen/src/SparseLU/SparseLU_heap_relax_snode.h
@@ -75,8 +75,8 @@ void SparseLUImpl<Scalar,StorageIndex>::heap_relax_snode (const Index n, IndexVe
   // Identify the relaxed supernodes by postorder traversal of the etree
   Index snode_start; // beginning of a snode 
   StorageIndex k;
-  Index nsuper_et_post = 0; // Number of relaxed snodes in postordered etree 
-  Index nsuper_et = 0; // Number of relaxed snodes in the original etree 
+  [[maybe_unused]] Index nsuper_et_post = 0; // Number of relaxed snodes in postordered etree
+  [[maybe_unused]] Index nsuper_et = 0; // Number of relaxed snodes in the original etree
   StorageIndex l; 
   for (j = 0; j < n; )
   {
diff --git a/MMVII/src/Appli/cMMVII_Appli.cpp b/MMVII/src/Appli/cMMVII_Appli.cpp
index efbfdf2b76..04ca1f418d 100755
--- a/MMVII/src/Appli/cMMVII_Appli.cpp
+++ b/MMVII/src/Appli/cMMVII_Appli.cpp
@@ -1727,7 +1727,7 @@ cParamCallSys  cMMVII_Appli::StrCallMMVII
 
    // std::string aComGlob = mFullBin + " ";
    aRes.AddArgs(mFullBin);
-   int aNbSubst=0;
+   [[maybe_unused]] int aNbSubst=0;
    std::vector<bool>  aVUsedSubst(aSubst.V().size(),false);
 /*
    cSpecMMVII_Appli*  aSpec = cSpecMMVII_Appli::SpecOfName(aCom2007,false); // false => dont accept no match
diff --git a/MMVII/src/CodedTarget/cCdts_CheckBoardTarget.cpp b/MMVII/src/CodedTarget/cCdts_CheckBoardTarget.cpp
index f29f08db09..0efb50bae6 100755
--- a/MMVII/src/CodedTarget/cCdts_CheckBoardTarget.cpp
+++ b/MMVII/src/CodedTarget/cCdts_CheckBoardTarget.cpp
@@ -150,8 +150,6 @@ cCdRadiom::cCdRadiom
        mCostCorrel (2.001),   // over maximal theoreticall value
        mRatioBW    (0)
 {
-    static int aCpt=0 ; aCpt++;
-
     int aNbIn0=0,aNbIn1=0;
 
     cMatIner2Var<tREAL8> aCorGrayAll;
diff --git a/MMVII/src/CodedTarget/cCheckBoardTargetExtract.cpp b/MMVII/src/CodedTarget/cCheckBoardTargetExtract.cpp
index d5b6089f79..64aee5812b 100755
--- a/MMVII/src/CodedTarget/cCheckBoardTargetExtract.cpp
+++ b/MMVII/src/CodedTarget/cCheckBoardTargetExtract.cpp
@@ -359,7 +359,7 @@ void cAppliCheckBoardTargetExtract::SetLabel(const cPt2dr& aPt,tU_INT1 aLabel)
 cCdRadiom cAppliCheckBoardTargetExtract::MakeCdtRadiom(cScoreTetaLine & aSTL,const cCdSym & aCdSym,tREAL8 aThickness)
 {
     bool IsMarqed = IsPtTest(aCdSym.mC);
-    static int aCptGlob=0 ; aCptGlob++;
+//    static int aCptGlob=0 ; aCptGlob++;
     static int aCptMarq=0 ; if (IsMarqed) aCptMarq++;
     DebugCB = (aCptMarq == mNumDebugMT) && IsMarqed;
 
@@ -431,7 +431,6 @@ void cAppliCheckBoardTargetExtract::ComputeTopoSadles()
 	 // select 1 point in conected component
 
     cAutoTimerSegm aTSMaxCC(mTimeSegm,"2.1-MaxCCSad");
-    int aNbCCSad=0;
     std::vector<cPt2di>  aVCC;
     const std::vector<cPt2di> & aV8 = Alloc8Neighbourhood();
 
@@ -439,7 +438,6 @@ void cAppliCheckBoardTargetExtract::ComputeTopoSadles()
     {
          if (mDImLabel->GetV(aPix)==eTopo0)
 	 {
-             aNbCCSad++;
              ConnectedComponent(aVCC,*mDImLabel,aV8,aPix,eTopo0,eTopoTmpCC);
 	     cWhichMax<cPt2di,tREAL8> aBestPInCC;
 	     for (const auto & aPixCC : aVCC)
@@ -664,7 +662,6 @@ void cAppliCheckBoardTargetExtract::DoOneImageAndScale(tREAL8 aScale,const  tIm
     int aNbEllWCode = 0;
     cAutoTimerSegm aTSEllipse(mTimeSegm,"Ellipse");
     {
-        int aCpt=0;
         for (const auto & aCdtRad : aVCdtRad)
         {
            std::vector<bool>  TryCE = {false}; // Do we do the try in circle or ellipse mode
@@ -688,7 +685,6 @@ void cAppliCheckBoardTargetExtract::DoOneImageAndScale(tREAL8 aScale,const  tIm
 		  AddCdtE(aCDE);
 	       }
 	   }
-           aCpt++;
         }
     }
 
diff --git a/MMVII/src/Geom2D/Delaunay.cpp b/MMVII/src/Geom2D/Delaunay.cpp
index 14e4920bd0..fb2412cfe6 100755
--- a/MMVII/src/Geom2D/Delaunay.cpp
+++ b/MMVII/src/Geom2D/Delaunay.cpp
@@ -354,7 +354,7 @@ Delaunator::Delaunator(SafeVector<double> const& in_coords)
 
     hull_start = i0;
 
-    size_t hull_size = 3;
+    [[maybe_unused]] size_t hull_size = 3;
 
     hull_next[i0] = hull_prev[i2] = i1;
     hull_next[i1] = hull_prev[i0] = i2;
diff --git a/MMVII/src/Geom3D/cZBuffer.cpp b/MMVII/src/Geom3D/cZBuffer.cpp
index 8776f0a9f0..7cbb5c5690 100755
--- a/MMVII/src/Geom3D/cZBuffer.cpp
+++ b/MMVII/src/Geom3D/cZBuffer.cpp
@@ -128,14 +128,10 @@ cZBuffer::cZBuffer(cTri3DIterator & aMesh,const tSet &  aSetIn,const tMap & aMap
     cPt3dr aPIn;
 
     mMesh.ResetAll();
-    int aCptTot=0;
-    int aCptIn=0;
     while (mMesh.GetNextPoint(aPIn))
     {
-        aCptTot++;
         if (mSetIn.InsideWithBox(aPIn))
         {
-            aCptIn++;
             cPt3dr aPOut = mMapI2O.Value(aPIn);
 
             if (mSetOut.InsideWithBox(aPOut))
diff --git a/MMVII/src/Geoms/TilesIndexGeom.cpp b/MMVII/src/Geoms/TilesIndexGeom.cpp
index a513f0bb8d..a6d3451417 100755
--- a/MMVII/src/Geoms/TilesIndexGeom.cpp
+++ b/MMVII/src/Geoms/TilesIndexGeom.cpp
@@ -309,7 +309,7 @@ void OneBenchSpatialIndex()
                  aVerif2.Add(aPt->GetPrimGeom(),aDistSegPt);
 	    }
 
-	    int aNbIn=0;
+        [[maybe_unused]] int aNbIn=0;
 	    for (const auto & aPt : aLPt)
 	    {
                 tREAL8 aDistSegPt = aSeg.Seg().DistClosedSeg(aPt) ;
diff --git a/MMVII/src/ImagesInfoExtract/InfoPonctuelles.cpp b/MMVII/src/ImagesInfoExtract/InfoPonctuelles.cpp
index f93510e528..0d722ba840 100755
--- a/MMVII/src/ImagesInfoExtract/InfoPonctuelles.cpp
+++ b/MMVII/src/ImagesInfoExtract/InfoPonctuelles.cpp
@@ -12,9 +12,6 @@ double CubGaussWeightStandardDev(const cDataIm2D<Type>  &anIm,const cPt2di& aC,d
     double aSqRad = Square(aRadius);
     cUB_ComputeStdDev<1>  aCSD;
 
-    int aNbOk = 0;
-
-
     for (const auto & aDP : aDBox)
     {
          double aN2 = SqN2(aDP);    // Square norm of displacement
@@ -23,7 +20,6 @@ double CubGaussWeightStandardDev(const cDataIm2D<Type>  &anIm,const cPt2di& aC,d
              cPt2di aP = aC + aDP;
              if (anIm.Inside(aP))
              {
-                 aNbOk++;
                  double aRatio = std::sqrt(aN2) / aRadius;
                  double aWeight = CubAppGaussVal(aRatio);
                  double aVal =  anIm.GetV(aP);
diff --git a/MMVII/src/ImagesInfoExtract/cAppliExtractLine.cpp b/MMVII/src/ImagesInfoExtract/cAppliExtractLine.cpp
index a58166856d..a0e4d0acd5 100755
--- a/MMVII/src/ImagesInfoExtract/cAppliExtractLine.cpp
+++ b/MMVII/src/ImagesInfoExtract/cAppliExtractLine.cpp
@@ -510,14 +510,12 @@ void cAppliExtractLine::MakeVisu(const std::string & aNameIm)
     if (mGenVisu>=3)
     {
          cRGBImage  aVisAccum =  RGBImFromGray(aDAccum,255.0/aVMax);
-	 int aK=0;
          for (const auto & aPS : mVPS)
          {
              //aVisAccum.SetRGBrectWithAlpha(ToI(aPS->IndTetaRho())  ,15,cRGBImage::Red,0.5);
 	     cPt2dr aC=aPS.IndTetaRho();
 	     cPt2dr aSz(7,7);
              aVisAccum.FillRectangle(cRGBImage::Red,ToI(aC-aSz),ToI(aC+aSz),cPt3dr(0.5,1.0,1.0));
-	     aK++;
          }
          aVisAccum.ToJpgFileDeZoom(mPhProj.DirVisuAppli() + "Accum_" + aNameTif,1);
          aDAccum.ToFile(mPhProj.DirVisuAppli() + "RawAccum_" + aNameTif);
diff --git a/MMVII/src/ImagesInfoExtract/cHoughTransform.cpp b/MMVII/src/ImagesInfoExtract/cHoughTransform.cpp
index 9158fa0c43..006b25ab1d 100755
--- a/MMVII/src/ImagesInfoExtract/cHoughTransform.cpp
+++ b/MMVII/src/ImagesInfoExtract/cHoughTransform.cpp
@@ -162,7 +162,6 @@ void ShowImProfile(const cDataIm1D<tREAL8> &  anIm,const std::string & aName)
 void  cParalLine::ComputeRadiomHomog(const cDataGenUnTypedIm<2> & anIm,cPerspCamIntrCalib * aCalib,const std::string & aNameFile) 
 {
 // StdOut() << "aNameFileaNameFileaNameFileaNameFile " << aNameFile << "\n";
-    static int aCPT=0; aCPT++;
 
     cSegment2DCompiled<tREAL8>  aSegFull = aCalib->ExtenSegUndistIncluded(false,mMidleSeg,0.05,1.0,5.0);
 
diff --git a/MMVII/src/LearningMatching/FillCubeCostMatch.cpp b/MMVII/src/LearningMatching/FillCubeCostMatch.cpp
index a51583af3d..c864196d30 100755
--- a/MMVII/src/LearningMatching/FillCubeCostMatch.cpp
+++ b/MMVII/src/LearningMatching/FillCubeCostMatch.cpp
@@ -478,8 +478,6 @@ int  cAppliFillCubeCost::Exe()
    cPt2di aSz = aDZMin.Sz();
    cPt2di aPix;
 
-   int aCpt=0;
-
    for (aPix.y()=0 ; aPix.y()<aSz.y() ; aPix.y()++)
    {
        StdOut() << "Line " << aPix.y() << " on " << aSz.y()  << std::endl;
@@ -496,7 +494,6 @@ int  cAppliFillCubeCost::Exe()
                bool   aTabOk[2];
 	       for (int aK=0 ; aK<int(aVMods.size()) ; aK++)
                     aTabCost[aK] = aVMods[aK]->ComputeCost(aTabOk[aK],aPC1,aPC20,aDz);
-               aCpt++;
                PushCost(aTabCost[0]);
 
 	       if (mCmpCorLearn && aTabOk[0] && aTabOk[1])
diff --git a/MMVII/src/PoseEstim/CalibratedSpaceResection.cpp b/MMVII/src/PoseEstim/CalibratedSpaceResection.cpp
index 7dfcc84b06..e154f78b0b 100644
--- a/MMVII/src/PoseEstim/CalibratedSpaceResection.cpp
+++ b/MMVII/src/PoseEstim/CalibratedSpaceResection.cpp
@@ -253,7 +253,6 @@ template <class Type> cIsometry3D<Type> cElemSpaceResection<Type>::BC2Pose(const
 
 template <class Type> void  cElemSpaceResection<Type>::OneTestCorrectness()
 {
-   static int aCpt=0; aCpt++;
    {
        // generate 3 bundle not too degenared => 0,P0,P1,P2 cot coplanar
        cTriangle<Type,3> aTriBund = RandomTetraTriangRegul<Type>(1e-2,1e2);
diff --git a/MMVII/src/Sensors/cSensorCamPC.cpp b/MMVII/src/Sensors/cSensorCamPC.cpp
index 5502f1bd82..03ddd4695b 100644
--- a/MMVII/src/Sensors/cSensorCamPC.cpp
+++ b/MMVII/src/Sensors/cSensorCamPC.cpp
@@ -347,12 +347,6 @@ cSensorCamPC * cSensorCamPC::PCChangSys(cDataInvertibleMapping<tREAL8,3> & aMap)
         cPt3dr  aIJac ; GetCol(aIJac,aJac,0);
         cPt3dr  aJJac ; GetCol(aJJac,aJac,1);
         cPt3dr  aKJac ; GetCol(aKJac,aJac,2);
-        static int aCpt=0;
-        //CM: unused: static tREAL8 aSNorm=0;
-        //CM: unused: tREAL8 aNorm = std::abs(Norm2(aIJac)-Norm2(aJJac));
-        aCpt++;
-        //CM: unused: aSNorm += aNorm;
-	// StdOut()  <<   "DNorm=" <<  aNorm << " Avg=" << aSNorm / aCpt << std::endl;
         aJac = M3x3FromCol(VUnit(aIJac),VUnit(aJJac),VUnit(aKJac));
     }
     cDenseMatrix<tREAL8>  aNewMatNonR  = aJac *  Pose().Rot().Mat();
diff --git a/MMVII/src/TestLibsExtern/MarketIO.h b/MMVII/src/TestLibsExtern/MarketIO.h
index c82ffc7fd3..103f0c4a08 100755
--- a/MMVII/src/TestLibsExtern/MarketIO.h
+++ b/MMVII/src/TestLibsExtern/MarketIO.h
@@ -94,11 +94,9 @@ bool saveMarket(const SparseMatrixType& mat, const std::string& filename)
   out.flags(std::ios_base::scientific);
   out.precision(64);
   out << mat.rows() << " " << mat.cols() << " " << mat.nonZeros() << "\n";
-  int count = 0;
   for(int j=0; j<mat.outerSize(); ++j)
     for(typename SparseMatrixType::InnerIterator it(mat,j); it; ++it)
     {
-      ++ count;
       out << it.row()+1 << " " << it.col()+1 << " " << it.value() << "\n";
     }
   out.close();
diff --git a/MMVII/src/TieP/cToTiePMultiple.cpp b/MMVII/src/TieP/cToTiePMultiple.cpp
index f93a1a4212..cb33298203 100644
--- a/MMVII/src/TieP/cToTiePMultiple.cpp
+++ b/MMVII/src/TieP/cToTiePMultiple.cpp
@@ -1155,7 +1155,7 @@ void OneBench(int aNbImage,int aNbPts,int aMaxCard,bool DoIt)
     cSimulHom aSimH(aNbImage,aNbPts,aMaxCard,false);
     cComputeMergeMulTieP aSetMTP1(aSimH.VNames());
 
-    int aCptErr = 0;
+    [[maybe_unused]] int aCptErr = 0;
     for (int aKPts=0 ; aKPts<aNbPts ; aKPts++)
     {
         cMultiplePt aMTP = aSimH.GenMulTieP();
diff --git a/include/im_tpl/algo_cc.h b/include/im_tpl/algo_cc.h
index ef8306e1d2..2302736515 100755
--- a/include/im_tpl/algo_cc.h
+++ b/include/im_tpl/algo_cc.h
@@ -72,8 +72,6 @@ template <class T1,class T2,class Action> int OneZC
       aVCur->push_back(aPGerm);
       aOnNewPt.OnNewPt(aPGerm);
    }
-   int aNbStep = 1;
-
    int aNbTot = 0;
    while (! aVCur->empty())
    {
@@ -100,7 +98,6 @@ template <class T1,class T2,class Action> int OneZC
 
        ElSwap(aVNext,aVCur);
        aVNext->clear();
-       aNbStep++;
    }
 
    return aNbTot;
diff --git a/include/im_tpl/impainting.h b/include/im_tpl/impainting.h
index b972d213fd..177ec3c125 100755
--- a/include/im_tpl/impainting.h
+++ b/include/im_tpl/impainting.h
@@ -111,7 +111,6 @@ template  <class Type,class Type_Base>
 
     for (int aKIter=0 ; aKIter< 6 ; aKIter++)
    {
-       int aNbUpdate = 0;
        bool Pair= ((aKIter%2)==0);
 
        int IndDeb = Pair ? 0       : (mNbPts-1);
@@ -133,14 +132,12 @@ template  <class Type,class Type_Base>
                      {
                           aZMin = aZAugm;
                           aValOfZMin = (Type)mTImVal.get(aPVois);
-                          aNbUpdate++;
                      }
                 }
             }
             mTImVal.oset(aP2Cur,aValOfZMin);
             mTImBuf.oset(aP2Cur,aZMin);
        }
-       // std::cout << "NNNbUodta " << aNbUpdate << "\n";
    }
 }