diff --git a/sundials-fix-multiple-defination.patch b/sundials-fix-multiple-defination.patch
new file mode 100644
index 0000000..0aa3201
--- /dev/null
+++ b/sundials-fix-multiple-defination.patch
@@ -0,0 +1,160 @@
+diff -urN a/src/arkode/fcmix/farknulllinsol.c b/src/arkode/fcmix/farknulllinsol.c
+--- a/src/arkode/fcmix/farknulllinsol.c	2021-08-04 15:14:58.092488860 +0800
++++ b/src/arkode/fcmix/farknulllinsol.c	2021-08-04 15:06:12.679957136 +0800
+@@ -26,8 +26,8 @@
+ 
+ /* Define global matrix variables */
+ 
+-SUNLinearSolver F2C_ARKODE_linsol;
+-SUNLinearSolver F2C_ARKODE_mass_sol; 
++extern SUNLinearSolver F2C_ARKODE_linsol;
++extern SUNLinearSolver F2C_ARKODE_mass_sol; 
+ 
+ /*=============================================================*/
+ 
+diff -urN a/src/arkode/fcmix/farknullmatrix.c b/src/arkode/fcmix/farknullmatrix.c
+--- a/src/arkode/fcmix/farknullmatrix.c	2021-08-04 15:15:14.396629485 +0800
++++ b/src/arkode/fcmix/farknullmatrix.c	2021-08-04 15:06:12.679957136 +0800
+@@ -26,8 +26,8 @@
+ 
+ /* Define global matrix variables */
+ 
+-SUNMatrix F2C_ARKODE_matrix;
+-SUNMatrix F2C_ARKODE_mass_matrix;
++extern SUNMatrix F2C_ARKODE_matrix;
++extern SUNMatrix F2C_ARKODE_mass_matrix;
+ 
+ /*=============================================================*/
+ 
+diff -urN a/src/sunlinsol/dense/fsunlinsol_dense.c b/src/sunlinsol/dense/fsunlinsol_dense.c
+--- a/src/sunlinsol/dense/fsunlinsol_dense.c	2021-08-04 15:11:55.930917705 +0800
++++ b/src/sunlinsol/dense/fsunlinsol_dense.c	2021-08-04 15:13:55.679950547 +0800
+@@ -25,11 +25,11 @@
+ 
+ /* Define global linsol variables */
+ 
+-SUNLinearSolver F2C_CVODE_linsol;
+-SUNLinearSolver F2C_IDA_linsol;
+-SUNLinearSolver F2C_KINSOL_linsol;
+-SUNLinearSolver F2C_ARKODE_linsol;
+-SUNLinearSolver F2C_ARKODE_mass_sol;
++extern SUNLinearSolver F2C_CVODE_linsol;
++extern SUNLinearSolver F2C_IDA_linsol;
++extern SUNLinearSolver F2C_KINSOL_linsol;
++extern SUNLinearSolver F2C_ARKODE_linsol;
++extern SUNLinearSolver F2C_ARKODE_mass_sol;
+ 
+ /* Declarations of external global variables */
+ 
+diff -urN a/src/sunlinsol/spgmr/fsunlinsol_spgmr.c b/src/sunlinsol/spgmr/fsunlinsol_spgmr.c
+--- a/src/sunlinsol/spgmr/fsunlinsol_spgmr.c	2021-08-04 15:15:49.436931712 +0800
++++ b/src/sunlinsol/spgmr/fsunlinsol_spgmr.c	2021-08-04 15:06:12.679957136 +0800
+@@ -25,11 +25,11 @@
+ 
+ /* Define global linsol variables */
+ 
+-SUNLinearSolver F2C_CVODE_linsol;
+-SUNLinearSolver F2C_IDA_linsol;
+-SUNLinearSolver F2C_KINSOL_linsol;
+-SUNLinearSolver F2C_ARKODE_linsol;
+-SUNLinearSolver F2C_ARKODE_mass_sol;
++extern SUNLinearSolver F2C_CVODE_linsol;
++extern SUNLinearSolver F2C_IDA_linsol;
++extern SUNLinearSolver F2C_KINSOL_linsol;
++extern SUNLinearSolver F2C_ARKODE_linsol;
++extern SUNLinearSolver F2C_ARKODE_mass_sol;
+ 
+ /* Declarations of external global variables */
+ 
+diff -urN a/src/sunmatrix/dense/fsunmatrix_dense.c b/src/sunmatrix/dense/fsunmatrix_dense.c
+--- a/src/sunmatrix/dense/fsunmatrix_dense.c	2021-08-04 15:11:55.930917705 +0800
++++ b/src/sunmatrix/dense/fsunmatrix_dense.c	2021-08-04 15:13:10.683562450 +0800
+@@ -25,11 +25,11 @@
+ 
+ /* Define global matrix variables */
+ 
+-SUNMatrix F2C_CVODE_matrix;
+-SUNMatrix F2C_IDA_matrix;
+-SUNMatrix F2C_KINSOL_matrix;
+-SUNMatrix F2C_ARKODE_matrix;
+-SUNMatrix F2C_ARKODE_mass_matrix;
++extern SUNMatrix F2C_CVODE_matrix;
++extern SUNMatrix F2C_IDA_matrix;
++extern SUNMatrix F2C_KINSOL_matrix;
++extern SUNMatrix F2C_ARKODE_matrix;
++extern SUNMatrix F2C_ARKODE_mass_matrix;
+ 
+ /* Fortran callable interfaces */
+ 
+diff -urN a/src/cvode/fcmix/fcvnulllinsol.c b/src/cvode/fcmix/fcvnulllinsol.c
+--- a/src/cvode/fcmix/fcvnulllinsol.c	2021-08-04 16:13:56.423007237 +0800
++++ b/src/cvode/fcmix/fcvnulllinsol.c	2021-08-04 16:16:46.760476411 +0800
+@@ -26,7 +26,7 @@
+ 
+ /* Define global linear solver variable */
+ 
+-SUNLinearSolver F2C_CVODE_linsol;
++extern SUNLinearSolver F2C_CVODE_linsol;
+ 
+ /*=============================================================*/
+ 
+diff -urN a/src/cvode/fcmix/fcvnullmatrix.c b/src/cvode/fcmix/fcvnullmatrix.c
+--- a/src/cvode/fcmix/fcvnullmatrix.c	2021-08-04 16:13:56.423007237 +0800
++++ b/src/cvode/fcmix/fcvnullmatrix.c	2021-08-04 16:17:07.408654503 +0800
+@@ -26,7 +26,7 @@
+ 
+ /* Define global matrix variable */
+ 
+-SUNMatrix F2C_CVODE_matrix;
++extern SUNMatrix F2C_CVODE_matrix;
+ 
+ /*=============================================================*/
+ 
+diff -urN a/src/cvode/fcmix/fcvnullnonlinsol.c b/src/cvode/fcmix/fcvnullnonlinsol.c
+--- a/src/cvode/fcmix/fcvnullnonlinsol.c	2021-08-04 16:13:56.423007237 +0800
++++ b/src/cvode/fcmix/fcvnullnonlinsol.c	2021-08-04 16:17:31.512862405 +0800
+@@ -26,7 +26,7 @@
+ 
+ /* Define global linear solver variable */
+ 
+-SUNNonlinearSolver F2C_CVODE_nonlinsol;
++extern SUNNonlinearSolver F2C_CVODE_nonlinsol;
+ 
+ /*=============================================================*/
+ 
+diff -urN a/src/sunmatrix/sparse/fsunmatrix_sparse.c b/src/sunmatrix/sparse/fsunmatrix_sparse.c
+--- a/src/sunmatrix/sparse/fsunmatrix_sparse.c	2021-08-04 16:27:46.222164321 +0800
++++ b/src/sunmatrix/sparse/fsunmatrix_sparse.c	2021-08-04 16:28:54.458752870 +0800
+@@ -26,7 +26,7 @@
+ /* Define global matrix variables */
+ 
+ SUNMatrix F2C_CVODE_matrix;
+-SUNMatrix F2C_IDA_matrix;
++extern SUNMatrix F2C_IDA_matrix;
+ SUNMatrix F2C_KINSOL_matrix;
+ SUNMatrix F2C_ARKODE_matrix;
+ SUNMatrix F2C_ARKODE_mass_matrix;
+diff -urN a/src/kinsol/fcmix/fkinnullmatrix.c b/src/kinsol/fcmix/fkinnullmatrix.c
+--- a/src/kinsol/fcmix/fkinnullmatrix.c	2021-08-04 16:33:54.485340623 +0800
++++ b/src/kinsol/fcmix/fkinnullmatrix.c	2021-08-04 16:34:24.573600132 +0800
+@@ -26,7 +26,7 @@
+ 
+ /* Define global matrix variable */
+ 
+-SUNMatrix F2C_KINSOL_matrix;
++extern SUNMatrix F2C_KINSOL_matrix;
+ 
+ /*=============================================================*/
+ 
+diff -urN a/src/kinsol/fcmix/fkinnulllinsol.c b/src/kinsol/fcmix/fkinnulllinsol.c
+--- a/src/kinsol/fcmix/fkinnulllinsol.c	2021-08-04 16:40:38.028821213 +0800
++++ b/src/kinsol/fcmix/fkinnulllinsol.c	2021-08-04 16:41:02.225029907 +0800
+@@ -26,7 +26,7 @@
+ 
+ /* Define global linear solver variable */
+ 
+-SUNLinearSolver F2C_KINSOL_linsol;
++extern SUNLinearSolver F2C_KINSOL_linsol;
+ 
+ /*=============================================================*/
+ 
diff --git a/sundials.spec b/sundials.spec
index 6a5d906..b66a285 100644
--- a/sundials.spec
+++ b/sundials.spec
@@ -27,7 +27,7 @@
 Summary:    Suite of nonlinear solvers
 Name:       sundials
 Version:    5.3.0
-Release:    1
+Release:    2
 License:    BSD
 URL:        https://github.com/LLNL/%{name} 
 Source0:    https://github.com/LLNL/%{name}/archive/v%{version}/%{name}-%{version}.tar.gz
@@ -38,6 +38,8 @@ Patch1:     %{name}-3.1.1-set_superlumt64_name.patch
 
 Patch2:     %{name}-change_petsc_variable.patch
 
+Patch3:     %{name}-fix-multiple-defination.patch
+
 BuildRequires: gcc-gfortran
 BuildRequires: python%{python3_pkgversion}-devel
 BuildRequires: %{?dts}gcc, %{?dts}gcc-c++
@@ -94,6 +96,8 @@ pushd %{name}-%{version}
 %patch0 -p0 -b .set_superlumt_name
 %endif
 
+%patch3 -p1
+
 ##Set serial library's paths
 sed -i 's|DESTINATION include/nvector|DESTINATION %{_includedir}/nvector|g' src/nvector/serial/CMakeLists.txt
 sed -i 's|DESTINATION include/nvector|DESTINATION %{_includedir}/nvector|g' src/nvector/openmp/CMakeLists.txt
@@ -336,5 +340,8 @@ popd
 %doc sundials-%{version}/doc/arkode/*
 
 %changelog
+* Wed Aug 4 2021 shdluan <shdluan@163.com> - 5.3.0-2
+- fix multiple defination
+
 * Wed May 12 2021 caodongxia <caodongxia@huawei.com> - 5.3.0-1
 - Package init