diff --git a/applications/solvers/df0DFoam/Make/options b/applications/solvers/df0DFoam/Make/options
index 9ba47317..9f2607c1 100644
--- a/applications/solvers/df0DFoam/Make/options
+++ b/applications/solvers/df0DFoam/Make/options
@@ -1,9 +1,10 @@
 -include $(GENERAL_RULES)/mplibType
 
 EXE_INC = -std=c++14 \
+    -Wno-old-style-cast \
     $(PFLAGS) $(PINC) \
     $(if $(LIBTORCH_ROOT),-DUSE_LIBTORCH,) \
-    $(if $(PYTHON_INC_DIR),-DUSE_PYTORCH,) \ 
+    $(if $(PYTHON_INC_DIR),-DUSE_PYTORCH,) \
     -I$(LIB_SRC)/transportModels/compressible/lnInclude \
     -I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
     -I$(LIB_SRC)/TurbulenceModels/turbulenceModels/lnInclude \
@@ -20,8 +21,8 @@ EXE_INC = -std=c++14 \
     $(if $(LIBTORCH_ROOT),-I$(LIBTORCH_ROOT)/include/torch/csrc/api/include,) \
     $(if $(BOOST_ARCH_PATH),-I$(BOOST_ARCH_PATH),) \
     $(if $(BOOST_ARCH_PATH),-DBOOST_ARCH_PATH_FOUNDD,) \
-    $(PYTHON_INC_DIR) 
-  
+    $(PYTHON_INC_DIR)
+
 
 
 EXE_LIBS = \
diff --git a/applications/solvers/dfHighSpeedFoam/Make/options b/applications/solvers/dfHighSpeedFoam/Make/options
index 1eb295b6..1405ff83 100644
--- a/applications/solvers/dfHighSpeedFoam/Make/options
+++ b/applications/solvers/dfHighSpeedFoam/Make/options
@@ -1,9 +1,10 @@
 -include $(GENERAL_RULES)/mplibType
 
 EXE_INC = -std=c++14 \
+    -Wno-old-style-cast \
     $(PFLAGS) $(PINC) \
     $(if $(LIBTORCH_ROOT),-DUSE_LIBTORCH,) \
-    $(if $(PYTHON_INC_DIR),-DUSE_PYTORCH,) \ 
+    $(if $(PYTHON_INC_DIR),-DUSE_PYTORCH,) \
     -I$(FOAM_APP)/solvers/compressible/rhoCentralFoam/BCs/lnInclude \
     -I$(LIB_SRC)/finiteVolume/cfdTools \
     -I$(LIB_SRC)/finiteVolume/lnInclude \
diff --git a/applications/solvers/dfLowMachFoam/Make/options b/applications/solvers/dfLowMachFoam/Make/options
index 21b86a77..9f19ede2 100644
--- a/applications/solvers/dfLowMachFoam/Make/options
+++ b/applications/solvers/dfLowMachFoam/Make/options
@@ -1,9 +1,10 @@
 -include $(GENERAL_RULES)/mplibType
 
 EXE_INC = -std=c++14 \
+    -Wno-old-style-cast \
     $(PFLAGS) $(PINC) \
     $(if $(LIBTORCH_ROOT),-DUSE_LIBTORCH,) \
-    $(if $(PYTHON_INC_DIR),-DUSE_PYTORCH,) \ 
+    $(if $(PYTHON_INC_DIR),-DUSE_PYTORCH,) \
     -I$(LIB_SRC)/transportModels/compressible/lnInclude \
     -I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
     -I$(LIB_SRC)/TurbulenceModels/turbulenceModels/lnInclude \
diff --git a/applications/solvers/dfSprayFoam/Make/options b/applications/solvers/dfSprayFoam/Make/options
index 2de14d1f..235e66f3 100644
--- a/applications/solvers/dfSprayFoam/Make/options
+++ b/applications/solvers/dfSprayFoam/Make/options
@@ -1,6 +1,7 @@
 -include $(GENERAL_RULES)/mplibType
 
 EXE_INC = -std=c++14 \
+    -Wno-old-style-cast \
     -I. \
     -I$(FOAM_APP)/solvers/lagrangian/reactingParcelFoam \
     -I$(FOAM_APP)/solvers/compressible/rhoPimpleFoam \
@@ -31,7 +32,7 @@ EXE_INC = -std=c++14 \
     $(if $(LIBTORCH_ROOT),-I$(LIBTORCH_ROOT)/include,) \
     $(if $(LIBTORCH_ROOT),-I$(LIBTORCH_ROOT)/include/torch/csrc/api/include,) \
     $(if $(LIBTORCH_ROOT),-DUSE_LIBTORCH,) \
-    $(if $(PYTHON_INC_DIR),-DUSE_PYTORCH,) \ 
+    $(if $(PYTHON_INC_DIR),-DUSE_PYTORCH,) \
     $(PYTHON_INC_DIR)
 
 EXE_LIBS = \
diff --git a/install.sh b/install.sh
index 62131fb1..f7d0fc78 100755
--- a/install.sh
+++ b/install.sh
@@ -1,6 +1,11 @@
 #!/bin/sh
 
-
+unset USE_LIBTORCH
+unset USE_PYTORCH
+unset LIBTORCH_DIR
+unset LIBCANTERA_DIR
+unset PYTORCH_INC
+unset PYTORCH_LIB
 
 print_usage() {
     echo "Usage: . install.sh --libtorch_no (default) | --libtorch_dir _path_to_libtorch | --libtorch_autodownload | --use_pytorch | --libcantera_dir _path_to_libcantera"
diff --git a/src/CanteraMixture/CanteraMixture.H b/src/CanteraMixture/CanteraMixture.H
index af0ead42..005236e3 100644
--- a/src/CanteraMixture/CanteraMixture.H
+++ b/src/CanteraMixture/CanteraMixture.H
@@ -241,7 +241,7 @@ public:
         scalarList Cp_R(nSpecies());
         CanteraGas_->getCp_R(Cp_R.begin());
         CpTemp_ = Cp_R*RR;
-        for(int i=0; i<nSpecies(); ++i)
+        for(int i=0; i<(int)nSpecies(); ++i)
         {
             CvTemp_[i] = CpTemp_[i] - RR;
         }
diff --git a/src/CanteraMixture/Make/options b/src/CanteraMixture/Make/options
index da200ea4..ab53ff01 100644
--- a/src/CanteraMixture/Make/options
+++ b/src/CanteraMixture/Make/options
@@ -1,4 +1,5 @@
 EXE_INC = \
+    -Wno-old-style-cast \
     -I$(LIB_SRC)/transportModels/compressible/lnInclude \
     -I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
     -I$(LIB_SRC)/finiteVolume/lnInclude \
diff --git a/src/dfChemistryModel/Make/options b/src/dfChemistryModel/Make/options
index ac40c877..e6ebf69c 100644
--- a/src/dfChemistryModel/Make/options
+++ b/src/dfChemistryModel/Make/options
@@ -1,6 +1,7 @@
 -include $(GENERAL_RULES)/mplibType
 
 EXE_INC = -std=c++14 \
+    -Wno-old-style-cast \
     $(if $(LIBTORCH_ROOT),-DUSE_LIBTORCH,) \
     $(if $(PYTHON_INC_DIR),-DUSE_PYTORCH,) \
     -I$(LIB_SRC)/transportModels/compressible/lnInclude \
diff --git a/src/dfChemistryModel/dfChemistryModel.C b/src/dfChemistryModel/dfChemistryModel.C
index dcf45832..334be4d0 100644
--- a/src/dfChemistryModel/dfChemistryModel.C
+++ b/src/dfChemistryModel/dfChemistryModel.C
@@ -520,34 +520,34 @@ Foam::dfChemistryModel<ThermoType>::getGPUProblems
         // choose DNN module
         if ((Qdot_[cellI] < Qdotact2_) && (T_[cellI] < Tact2_) && ( T_[cellI] >= Tact1_))//choose1
         {
-            problem.DNNid = 0; 
+            problem.DNNid = 0;
             problemList.append(problem);
             continue;
         }
         if(((Qdot_[cellI] >= Qdotact2_) && (T_[cellI] < Tact2_)&&(T_[cellI] >= Tact1_))||((Qdot_[cellI] > Qdotact3_) && T_[cellI] > Tact2_))  //choose2
         {
-            problem.DNNid = 1; 
+            problem.DNNid = 1;
             problemList.append(problem);
             continue;
         }
         if  ((Qdot_[cellI] < Qdotact3_) && (T_[cellI] >= Tact2_) && (Qdot_[cellI]!=0)) //choose3
         {
-            problem.DNNid = 2; 
+            problem.DNNid = 2;
             problemList.append(problem);
             continue;
         }
 
     }
 
-    return problemList; 
+    return problemList;
 }
 
 template <class ThermoType>
 void Foam::dfChemistryModel<ThermoType>::getDNNinputs
 (
-    const Foam::DynamicBuffer<GpuProblem>& problemBuffer, 
+    const Foam::DynamicBuffer<GpuProblem>& problemBuffer,
     std::vector<label>& outputLength,
-    std::vector<std::vector<double>>& DNNinputs, 
+    std::vector<std::vector<double>>& DNNinputs,
     std::vector<Foam::DynamicBuffer<label>>& cellIDBuffer,
     std::vector<std::vector<label>>& problemCounter
 )
@@ -610,7 +610,7 @@ void Foam::dfChemistryModel<ThermoType>::getDNNinputs
                 counter2++;
                 cellIDList2.append(problemBuffer[i][cellI].cellid);
                 break;
-            
+
             default:
                 Info<<"invalid input"<<endl;
                 break;
@@ -638,7 +638,7 @@ void Foam::dfChemistryModel<ThermoType>::getDNNinputs
     // auto inputTensor1 = torch::tensor(inputsDNN1);
     // inputTensor1 = inputTensor1.reshape({length1, mixture_.nSpecies() + 3});
     // auto inputTensor2 = torch::tensor(inputsDNN2);
-    // inputTensor2 = inputTensor2.reshape({length2, mixture_.nSpecies() + 3});    
+    // inputTensor2 = inputTensor2.reshape({length2, mixture_.nSpecies() + 3});
 
     // set output
     outputLength = {length0, length1, length2};
@@ -658,7 +658,7 @@ void Foam::dfChemistryModel<ThermoType>::getDNNinputs
 template <class ThermoType>
 void Foam::dfChemistryModel<ThermoType>::updateSolutionBuffer
 (
-    Foam::DynamicBuffer<Foam::GpuSolution>& solutionBuffer, 
+    Foam::DynamicBuffer<Foam::GpuSolution>& solutionBuffer,
     const std::vector<std::vector<double>>& results,
     const std::vector<Foam::label>& outputLength,
     const std::vector<Foam::DynamicBuffer<Foam::label>>& cellIDBuffer,
@@ -731,14 +731,14 @@ Foam::scalar Foam::dfChemistryModel<ThermoType>::solve_DNN_GPU(
     /*==============================send problems==============================*/
     std::chrono::steady_clock::time_point start2 = std::chrono::steady_clock::now();
 
-    PstreamBuffers pBufs(Pstream::commsTypes::nonBlocking); 
-    if (Pstream::myProcNo() % coresPerGPU) //for slave 
+    PstreamBuffers pBufs(Pstream::commsTypes::nonBlocking);
+    if (Pstream::myProcNo() % coresPerGPU) //for slave
     {
         UOPstream send((Pstream::myProcNo()/coresPerGPU)*coresPerGPU, pBufs);// sending problem to master
         send << problemList;
     }
     pBufs.finishedSends();
-    
+
     DynamicBuffer<GpuSolution> solutionBuffer;
 
     std::chrono::steady_clock::time_point stop2 = std::chrono::steady_clock::now();
@@ -751,7 +751,7 @@ Foam::scalar Foam::dfChemistryModel<ThermoType>::solve_DNN_GPU(
     {
         std::chrono::steady_clock::time_point start1 = std::chrono::steady_clock::now();
         std::chrono::steady_clock::time_point start3 = std::chrono::steady_clock::now();
-        
+
         label problemSize = 0; // problemSize is defined to debug
         DynamicBuffer<GpuProblem> problemBuffer(coresPerGPU);//each submaster init a local problemBuffer TODO:rename it
 
@@ -804,10 +804,10 @@ Foam::scalar Foam::dfChemistryModel<ThermoType>::solve_DNN_GPU(
         std::chrono::duration<double> processingTime6 = std::chrono::duration_cast<std::chrono::duration<double>>(stop6 - start6);
         std::cout << "updateSolutionBufferTime = " << processingTime6.count() << std::endl;
         time_updateSolutionBuffer_ += processingTime6.count();
-        
+
         std::chrono::steady_clock::time_point stop1 = std::chrono::steady_clock::now();
         std::chrono::duration<double> processingTime1 = std::chrono::duration_cast<std::chrono::duration<double>>(stop1 - start1);
-        std::cout << "submasterTime = " << processingTime1.count() << std::endl;  
+        std::cout << "submasterTime = " << processingTime1.count() << std::endl;
         time_submaster_ += processingTime1.count();
     }
 
@@ -821,19 +821,19 @@ Foam::scalar Foam::dfChemistryModel<ThermoType>::solve_DNN_GPU(
         finalList = solutionBuffer[0];
         for (label i = 1; i < coresPerGPU; i++)
         {
-            
+
             UOPstream send(i + Pstream::myProcNo(), pBufs2);
             send << solutionBuffer[i];
         }
     }
     pBufs2.finishedSends();
-    
+
     if (Pstream::myProcNo() % coresPerGPU)
     {
         UIPstream recv((Pstream::myProcNo()/coresPerGPU)*coresPerGPU, pBufs2);
         recv >> finalList;
     }
-   
+
     std::chrono::steady_clock::time_point stop4 = std::chrono::steady_clock::now();
     std::chrono::duration<double> processingTime4 = std::chrono::duration_cast<std::chrono::duration<double>>(stop4 - start4);
     std::cout << "SendRecvSolutionTime = " << processingTime4.count() << std::endl;
@@ -1078,7 +1078,7 @@ Foam::dfChemistryModel<ThermoType>::getProblems
     forAll(T, celli)
     {
         {
-            for(label i = 0; i < mixture_.nSpecies(); i++)
+            for(label i = 0; i < (int)(mixture_.nSpecies()); i++)
             {
                 yTemp_[i] = Y_[i][celli];
             }
@@ -1155,7 +1155,7 @@ Foam::dfChemistryModel<ThermoType>::updateReactionRates
         for(const auto& solution : array)
         {
 
-            for(label j = 0; j < mixture_.nSpecies(); j++)
+            for(label j = 0; j < int(mixture_.nSpecies()); j++)
             {
                 this->RR_[j][solution.cellid] = solution.RRi[j];
             }
@@ -1452,23 +1452,23 @@ Foam::dfChemistryModel<ThermoType>::getGPUProblems
         // choose DNN module
         if ((Qdot_[cellI] < Qdotact2_) && (T_[cellI] < Tact2_) && ( T_[cellI] >= Tact1_))//choose1
         {
-            problem.DNNid = 0; 
+            problem.DNNid = 0;
             problemList.append(problem);
             continue;
         }
         if(((Qdot_[cellI] >= Qdotact2_) && (T_[cellI] < Tact2_)&&(T_[cellI] >= Tact1_))||((Qdot_[cellI] > Qdotact3_) && T_[cellI] > Tact2_))  //choose2
         {
-            problem.DNNid = 1; 
+            problem.DNNid = 1;
             problemList.append(problem);
             continue;
         }
         if  ((Qdot_[cellI] < Qdotact3_) && (T_[cellI] >= Tact2_) && (Qdot_[cellI]!=0)) //choose3
         {
-            problem.DNNid = 2; 
+            problem.DNNid = 2;
             problemList.append(problem);
             continue;
         }
-    
+
     }
 
     return problemList;
diff --git a/src/dfCombustionModels/Make/options b/src/dfCombustionModels/Make/options
index 18f13a5b..bf6c78d4 100644
--- a/src/dfCombustionModels/Make/options
+++ b/src/dfCombustionModels/Make/options
@@ -1,8 +1,9 @@
 -include $(GENERAL_RULES)/mplibType
 
 EXE_INC = -std=c++14 \
+    -Wno-old-style-cast \
     $(if $(LIBTORCH_ROOT),-DUSE_LIBTORCH,) \
-    $(if $(PYTHON_INC_DIR),-DUSE_PYTORCH,) \ 
+    $(if $(PYTHON_INC_DIR),-DUSE_PYTORCH,) \
     -I$(LIB_SRC)/transportModels/compressible/lnInclude \
     -I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
     -I$(LIB_SRC)/TurbulenceModels/turbulenceModels/lnInclude \
diff --git a/src/functionObjects/field/Make/options b/src/functionObjects/field/Make/options
index e2b0eb0e..0d12d1d2 100644
--- a/src/functionObjects/field/Make/options
+++ b/src/functionObjects/field/Make/options
@@ -22,5 +22,5 @@ LIB_LIBS = \
     -lfileFormats \
     -lsampling \
     -lsurfMesh \
-    -L$(FOAM_USER_LIBBIN) \    
+    -L$(FOAM_USER_LIBBIN) \
     -ldfFluidThermophysicalModels
diff --git a/src/lagrangian/intermediate/Make/options b/src/lagrangian/intermediate/Make/options
index d9cead61..fb321295 100644
--- a/src/lagrangian/intermediate/Make/options
+++ b/src/lagrangian/intermediate/Make/options
@@ -1,4 +1,5 @@
 EXE_INC = \
+    -Wno-old-style-cast \
     -I$(LIB_SRC)/lagrangian/basic/lnInclude \
     -I$(LIB_SRC)/lagrangian/distributionModels/lnInclude \
     -I$(DF_SRC)/lagrangian/intermediate/lnInclude \
diff --git a/src/lagrangian/spray/Make/options b/src/lagrangian/spray/Make/options
index 995bc27c..9649d533 100644
--- a/src/lagrangian/spray/Make/options
+++ b/src/lagrangian/spray/Make/options
@@ -1,4 +1,5 @@
 EXE_INC = \
+    -Wno-old-style-cast \
     -I$(LIB_SRC)/lagrangian/basic/lnInclude \
     -I$(DF_SRC)/lagrangian/intermediate/lnInclude \
     -I$(LIB_SRC)/lagrangian/intermediate/lnInclude \
diff --git a/src/lagrangian/turbulence/Make/options b/src/lagrangian/turbulence/Make/options
index 7b738c86..a7958827 100644
--- a/src/lagrangian/turbulence/Make/options
+++ b/src/lagrangian/turbulence/Make/options
@@ -1,4 +1,5 @@
 EXE_INC = \
+    -Wno-old-style-cast \
     -I$(LIB_SRC)/lagrangian/basic/lnInclude \
     -I$(DF_SRC)/lagrangian/intermediate/lnInclude \
     -I$(LIB_SRC)/lagrangian/intermediate/lnInclude \
diff --git a/src/regionModels/surfaceFilmModels/Make/options b/src/regionModels/surfaceFilmModels/Make/options
index ca8d9380..7f9258fc 100644
--- a/src/regionModels/surfaceFilmModels/Make/options
+++ b/src/regionModels/surfaceFilmModels/Make/options
@@ -1,4 +1,5 @@
 EXE_INC = \
+    -Wno-old-style-cast \
     -I$(LIB_SRC)/transportModels/compressible/lnInclude \
     -I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
     -I$(DF_SRC)/thermophysicalModels/thermophysicalProperties/lnInclude \
diff --git a/src/thermophysicalModels/SLGThermo/Make/options b/src/thermophysicalModels/SLGThermo/Make/options
index 49bd8fd5..79ffc36c 100644
--- a/src/thermophysicalModels/SLGThermo/Make/options
+++ b/src/thermophysicalModels/SLGThermo/Make/options
@@ -1,4 +1,5 @@
 EXE_INC = \
+    -Wno-old-style-cast \
     -I$(LIB_SRC)/transportModels/compressible/lnInclude \
     -I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
     -I$(DF_SRC)/thermophysicalModels/thermophysicalProperties/lnInclude \