diff --git a/math/linbox/files/patch-linbox_matrix_sparsematrix_sparse-ell-matrix.h b/math/linbox/files/patch-linbox_matrix_sparsematrix_sparse-ell-matrix.h
new file mode 100644
index 000000000000..efde096e0e7e
--- /dev/null
+++ b/math/linbox/files/patch-linbox_matrix_sparsematrix_sparse-ell-matrix.h
@@ -0,0 +1,18 @@
+--- linbox/matrix/sparsematrix/sparse-ell-matrix.h.orig	2021-12-14 10:16:03 UTC
++++ linbox/matrix/sparsematrix/sparse-ell-matrix.h
+@@ -1205,6 +1205,7 @@ namespace LinBox
+ 				, _row(iter._row)
+ 			{}
+ 
++#if 0
+ 			_IndexedIterator &operator = (const _IndexedIterator &iter)
+ 			{
+ 				_colid_beg = iter._colid_beg ;
+@@ -1218,6 +1219,7 @@ namespace LinBox
+ 
+ 				return *this;
+ 			}
++#endif
+ 
+ 			bool operator == (const _IndexedIterator &i) const
+ 			{
diff --git a/math/linbox/files/patch-linbox_matrix_sparsematrix_sparse-ellr-matrix.h b/math/linbox/files/patch-linbox_matrix_sparsematrix_sparse-ellr-matrix.h
new file mode 100644
index 000000000000..bd8b3eaf95c8
--- /dev/null
+++ b/math/linbox/files/patch-linbox_matrix_sparsematrix_sparse-ellr-matrix.h
@@ -0,0 +1,34 @@
+--- linbox/matrix/sparsematrix/sparse-ellr-matrix.h.orig	2021-12-14 10:16:03 UTC
++++ linbox/matrix/sparsematrix/sparse-ellr-matrix.h
+@@ -1099,6 +1099,7 @@ namespace LinBox
+ 
+ 			{}
+ 
++#if 0
+ 			_Iterator &operator = (const _Iterator &iter)
+ 			{
+ 				_data_it  = iter._data_it  ;
+@@ -1111,6 +1112,7 @@ namespace LinBox
+ 
+ 				return *this;
+ 			}
++#endif
+ 
+ 			bool operator == (const _Iterator &i) const
+ 			{
+@@ -1246,6 +1248,7 @@ namespace LinBox
+ 				, _row(iter._row)
+ 			{}
+ 
++#if 0
+ 			_IndexedIterator &operator = (const _IndexedIterator &iter)
+ 			{
+ 				_rowid_it  = iter._rowid_it ;
+@@ -1260,6 +1263,7 @@ namespace LinBox
+ 
+ 				return *this;
+ 			}
++#endif
+ 
+ 			bool operator == (const _IndexedIterator &i) const
+ 			{
diff --git a/math/linbox/files/patch-linbox_vector_blas-subvector.h b/math/linbox/files/patch-linbox_vector_blas-subvector.h
new file mode 100644
index 000000000000..00c6e129b8aa
--- /dev/null
+++ b/math/linbox/files/patch-linbox_vector_blas-subvector.h
@@ -0,0 +1,13 @@
+--- linbox/vector/blas-subvector.h.orig	2021-12-14 10:16:03 UTC
++++ linbox/vector/blas-subvector.h
+@@ -117,8 +117,10 @@ namespace LinBox {
+          * \param dim dimension
+          * \param inc distance between two element
+          */
++#if 0
+         BlasSubvector (Self_t &V, size_t beg, size_t inc, size_t dim) :
+             _ptr(V.data()+beg), _size(dim), _inc(inc), _field(&V.field()) {}
++#endif
+ 
+         
+         /** Constructor from an existing @ref BlasVector