diff --git a/Eigen/src/Core/products/GeneralMatrixMatrixTriangular_MKL.h b/Eigen/src/Core/products/GeneralMatrixMatrixTriangular_MKL.h
index 91b949137..6c835372c 100644
--- a/Eigen/src/Core/products/GeneralMatrixMatrixTriangular_MKL.h
+++ b/Eigen/src/Core/products/GeneralMatrixMatrixTriangular_MKL.h
@@ -72,7 +72,7 @@ EIGEN_MKL_RANKUPDATE_SPECIALIZE(float)
 // EIGEN_MKL_RANKUPDATE_SPECIALIZE(scomplex)
 
 // SYRK for float/double
-#define EIGEN_MKL_RANKUPDATE_R(EIGTYPE, MKLTYPE, MKLFUNC) \
+#define EIGEN_MKL_RANKUPDATE_R(EIGTYPE, BLASTYPE, MKLFUNC) \
 template <typename Index, int AStorageOrder, bool ConjugateA, int  UpLo> \
 struct general_matrix_matrix_rankupdate<Index,EIGTYPE,AStorageOrder,ConjugateA,ColMajor,UpLo> { \
   enum { \
@@ -85,19 +85,19 @@ struct general_matrix_matrix_rankupdate<Index,EIGTYPE,AStorageOrder,ConjugateA,C
   { \
   /* typedef Matrix<EIGTYPE, Dynamic, Dynamic, RhsStorageOrder> MatrixRhs;*/ \
 \
-   MKL_INT lda=lhsStride, ldc=resStride, n=size, k=depth; \
+   BlasIndex lda=convert_index<BlasIndex>(lhsStride), ldc=convert_index<BlasIndex>(resStride), n=convert_index<BlasIndex>(size), k=convert_index<BlasIndex>(depth); \
    char uplo=(IsLower) ? 'L' : 'U', trans=(AStorageOrder==RowMajor) ? 'T':'N'; \
-   MKLTYPE alpha_, beta_; \
+   BLASTYPE alpha_, beta_; \
 \
 /* Set alpha_ & beta_ */ \
-   assign_scalar_eig2mkl<MKLTYPE, EIGTYPE>(alpha_, alpha); \
-   assign_scalar_eig2mkl<MKLTYPE, EIGTYPE>(beta_, EIGTYPE(1)); \
+   assign_scalar_eig2mkl<BLASTYPE, EIGTYPE>(alpha_, alpha); \
+   assign_scalar_eig2mkl<BLASTYPE, EIGTYPE>(beta_, EIGTYPE(1)); \
    MKLFUNC(&uplo, &trans, &n, &k, &alpha_, lhs, &lda, &beta_, res, &ldc); \
   } \
 };
 
 // HERK for complex data
-#define EIGEN_MKL_RANKUPDATE_C(EIGTYPE, MKLTYPE, RTYPE, MKLFUNC) \
+#define EIGEN_MKL_RANKUPDATE_C(EIGTYPE, BLASTYPE, RTYPE, MKLFUNC) \
 template <typename Index, int AStorageOrder, bool ConjugateA, int  UpLo> \
 struct general_matrix_matrix_rankupdate<Index,EIGTYPE,AStorageOrder,ConjugateA,ColMajor,UpLo> { \
   enum { \
@@ -110,14 +110,14 @@ struct general_matrix_matrix_rankupdate<Index,EIGTYPE,AStorageOrder,ConjugateA,C
   { \
    typedef Matrix<EIGTYPE, Dynamic, Dynamic, AStorageOrder> MatrixType; \
 \
-   MKL_INT lda=lhsStride, ldc=resStride, n=size, k=depth; \
+   BlasIndex lda=convert_index<BlasIndex>(lhsStride), ldc=convert_index<BlasIndex>(resStride), n=convert_index<BlasIndex>(size), k=convert_index<BlasIndex>(depth); \
    char uplo=(IsLower) ? 'L' : 'U', trans=(AStorageOrder==RowMajor) ? 'C':'N'; \
    RTYPE alpha_, beta_; \
    const EIGTYPE* a_ptr; \
 \
 /* Set alpha_ & beta_ */ \
-/*   assign_scalar_eig2mkl<MKLTYPE, EIGTYPE>(alpha_, alpha); */\
-/*   assign_scalar_eig2mkl<MKLTYPE, EIGTYPE>(beta_, EIGTYPE(1));*/ \
+/*   assign_scalar_eig2mkl<BLASTYPE, EIGTYPE>(alpha_, alpha); */\
+/*   assign_scalar_eig2mkl<BLASTYPE, EIGTYPE>(beta_, EIGTYPE(1));*/ \
    alpha_ = alpha.real(); \
    beta_ = 1.0; \
 /* Copy with conjugation in some cases*/ \
@@ -128,7 +128,7 @@ struct general_matrix_matrix_rankupdate<Index,EIGTYPE,AStorageOrder,ConjugateA,C
      lda = a.outerStride(); \
      a_ptr = a.data(); \
    } else a_ptr=lhs; \
-   MKLFUNC(&uplo, &trans, &n, &k, &alpha_, (MKLTYPE*)a_ptr, &lda, &beta_, (MKLTYPE*)res, &ldc); \
+   MKLFUNC(&uplo, &trans, &n, &k, &alpha_, (BLASTYPE*)a_ptr, &lda, &beta_, (BLASTYPE*)res, &ldc); \
   } \
 };
 
diff --git a/Eigen/src/Core/products/GeneralMatrixMatrix_MKL.h b/Eigen/src/Core/products/GeneralMatrixMatrix_MKL.h
index 8f8e9caed..299faf2f2 100644
--- a/Eigen/src/Core/products/GeneralMatrixMatrix_MKL.h
+++ b/Eigen/src/Core/products/GeneralMatrixMatrix_MKL.h
@@ -46,7 +46,7 @@ namespace internal {
 
 // gemm specialization
 
-#define GEMM_SPECIALIZATION(EIGTYPE, EIGPREFIX, MKLTYPE, MKLPREFIX) \
+#define GEMM_SPECIALIZATION(EIGTYPE, EIGPREFIX, BLASTYPE, MKLPREFIX) \
 template< \
   typename Index, \
   int LhsStorageOrder, bool ConjugateLhs, \
@@ -66,7 +66,7 @@ static void run(Index rows, Index cols, Index depth, \
   using std::conj; \
 \
   char transa, transb; \
-  MKL_INT m, n, k, lda, ldb, ldc; \
+  BlasIndex m, n, k, lda, ldb, ldc; \
   const EIGTYPE *a, *b; \
   EIGTYPE beta(1); \
   MatrixX##EIGPREFIX a_tmp, b_tmp; \
@@ -76,31 +76,31 @@ static void run(Index rows, Index cols, Index depth, \
   transb = (RhsStorageOrder==RowMajor) ? ((ConjugateRhs) ? 'C' : 'T') : 'N'; \
 \
 /* Set m, n, k */ \
-  m = (MKL_INT)rows;  \
-  n = (MKL_INT)cols;  \
-  k = (MKL_INT)depth; \
+  m = convert_index<BlasIndex>(rows);  \
+  n = convert_index<BlasIndex>(cols);  \
+  k = convert_index<BlasIndex>(depth); \
 \
 /* Set lda, ldb, ldc */ \
-  lda = (MKL_INT)lhsStride; \
-  ldb = (MKL_INT)rhsStride; \
-  ldc = (MKL_INT)resStride; \
+  lda = convert_index<BlasIndex>(lhsStride); \
+  ldb = convert_index<BlasIndex>(rhsStride); \
+  ldc = convert_index<BlasIndex>(resStride); \
 \
 /* Set a, b, c */ \
   if ((LhsStorageOrder==ColMajor) && (ConjugateLhs)) { \
     Map<const MatrixX##EIGPREFIX, 0, OuterStride<> > lhs(_lhs,m,k,OuterStride<>(lhsStride)); \
     a_tmp = lhs.conjugate(); \
     a = a_tmp.data(); \
-    lda = a_tmp.outerStride(); \
+    lda = convert_index<BlasIndex>(a_tmp.outerStride()); \
   } else a = _lhs; \
 \
   if ((RhsStorageOrder==ColMajor) && (ConjugateRhs)) { \
     Map<const MatrixX##EIGPREFIX, 0, OuterStride<> > rhs(_rhs,k,n,OuterStride<>(rhsStride)); \
     b_tmp = rhs.conjugate(); \
     b = b_tmp.data(); \
-    ldb = b_tmp.outerStride(); \
+    ldb = convert_index<BlasIndex>(b_tmp.outerStride()); \
   } else b = _rhs; \
 \
-  MKLPREFIX##gemm_(&transa, &transb, &m, &n, &k, &numext::real_ref(alpha), (const MKLTYPE*)a, &lda, (const MKLTYPE*)b, &ldb, &numext::real_ref(beta), (MKLTYPE*)res, &ldc); \
+  MKLPREFIX##gemm_(&transa, &transb, &m, &n, &k, &numext::real_ref(alpha), (const BLASTYPE*)a, &lda, (const BLASTYPE*)b, &ldb, &numext::real_ref(beta), (BLASTYPE*)res, &ldc); \
 }};
 
 GEMM_SPECIALIZATION(double,   d,  double, d)
diff --git a/Eigen/src/Core/products/GeneralMatrixVector_MKL.h b/Eigen/src/Core/products/GeneralMatrixVector_MKL.h
index fa5c9b6a0..c447c4aed 100644
--- a/Eigen/src/Core/products/GeneralMatrixVector_MKL.h
+++ b/Eigen/src/Core/products/GeneralMatrixVector_MKL.h
@@ -85,7 +85,7 @@ EIGEN_MKL_GEMV_SPECIALIZE(float)
 EIGEN_MKL_GEMV_SPECIALIZE(dcomplex)
 EIGEN_MKL_GEMV_SPECIALIZE(scomplex)
 
-#define EIGEN_MKL_GEMV_SPECIALIZATION(EIGTYPE,MKLTYPE,MKLPREFIX) \
+#define EIGEN_MKL_GEMV_SPECIALIZATION(EIGTYPE,BLASTYPE,MKLPREFIX) \
 template<typename Index, int LhsStorageOrder, bool ConjugateLhs, bool ConjugateRhs> \
 struct general_matrix_vector_product_gemv<Index,EIGTYPE,LhsStorageOrder,ConjugateLhs,EIGTYPE,ConjugateRhs> \
 { \
@@ -97,13 +97,14 @@ static void run( \
   const EIGTYPE* rhs, Index rhsIncr, \
   EIGTYPE* res, Index resIncr, EIGTYPE alpha) \
 { \
-  MKL_INT m=rows, n=cols, lda=lhsStride, incx=rhsIncr, incy=resIncr; \
+  BlasIndex m=convert_index<BlasIndex>(rows), n=convert_index<BlasIndex>(cols), \
+            lda=convert_index<BlasIndex>(lhsStride), incx=convert_index<BlasIndex>(rhsIncr), incy=convert_index<BlasIndex>(resIncr); \
   const EIGTYPE beta(1); \
   const EIGTYPE *x_ptr; \
   char trans=(LhsStorageOrder==ColMajor) ? 'N' : (ConjugateLhs) ? 'C' : 'T'; \
   if (LhsStorageOrder==RowMajor) { \
-    m = cols; \
-    n = rows; \
+    m = convert_index<BlasIndex>(cols); \
+    n = convert_index<BlasIndex>(rows); \
   }\
   GEMVVector x_tmp; \
   if (ConjugateRhs) { \
@@ -112,7 +113,7 @@ static void run( \
     x_ptr=x_tmp.data(); \
     incx=1; \
   } else x_ptr=rhs; \
-  MKLPREFIX##gemv_(&trans, &m, &n, &numext::real_ref(alpha), (const MKLTYPE*)lhs, &lda, (const MKLTYPE*)x_ptr, &incx, &numext::real_ref(beta), (MKLTYPE*)res, &incy); \
+  MKLPREFIX##gemv_(&trans, &m, &n, &numext::real_ref(alpha), (const BLASTYPE*)lhs, &lda, (const BLASTYPE*)x_ptr, &incx, &numext::real_ref(beta), (BLASTYPE*)res, &incy); \
 }\
 };
 
diff --git a/Eigen/src/Core/products/SelfadjointMatrixMatrix_MKL.h b/Eigen/src/Core/products/SelfadjointMatrixMatrix_MKL.h
index 9c2e811dd..b1176962b 100644
--- a/Eigen/src/Core/products/SelfadjointMatrixMatrix_MKL.h
+++ b/Eigen/src/Core/products/SelfadjointMatrixMatrix_MKL.h
@@ -40,7 +40,7 @@ namespace internal {
 
 /* Optimized selfadjoint matrix * matrix (?SYMM/?HEMM) product */
 
-#define EIGEN_MKL_SYMM_L(EIGTYPE, MKLTYPE, EIGPREFIX, MKLPREFIX) \
+#define EIGEN_MKL_SYMM_L(EIGTYPE, BLASTYPE, EIGPREFIX, MKLPREFIX) \
 template <typename Index, \
           int LhsStorageOrder, bool ConjugateLhs, \
           int RhsStorageOrder, bool ConjugateRhs> \
@@ -55,20 +55,20 @@ struct product_selfadjoint_matrix<EIGTYPE,Index,LhsStorageOrder,true,ConjugateLh
     EIGTYPE alpha, level3_blocking<EIGTYPE, EIGTYPE>& /*blocking*/) \
   { \
     char side='L', uplo='L'; \
-    MKL_INT m, n, lda, ldb, ldc; \
+    BlasIndex m, n, lda, ldb, ldc; \
     const EIGTYPE *a, *b; \
     EIGTYPE beta(1); \
     MatrixX##EIGPREFIX b_tmp; \
 \
 /* Set transpose options */ \
 /* Set m, n, k */ \
-    m = (MKL_INT)rows;  \
-    n = (MKL_INT)cols;  \
+    m = convert_index<BlasIndex>(rows);  \
+    n = convert_index<BlasIndex>(cols);  \
 \
 /* Set lda, ldb, ldc */ \
-    lda = (MKL_INT)lhsStride; \
-    ldb = (MKL_INT)rhsStride; \
-    ldc = (MKL_INT)resStride; \
+    lda = convert_index<BlasIndex>(lhsStride); \
+    ldb = convert_index<BlasIndex>(rhsStride); \
+    ldc = convert_index<BlasIndex>(resStride); \
 \
 /* Set a, b, c */ \
     if (LhsStorageOrder==RowMajor) uplo='U'; \
@@ -78,16 +78,16 @@ struct product_selfadjoint_matrix<EIGTYPE,Index,LhsStorageOrder,true,ConjugateLh
       Map<const MatrixX##EIGPREFIX, 0, OuterStride<> > rhs(_rhs,n,m,OuterStride<>(rhsStride)); \
       b_tmp = rhs.adjoint(); \
       b = b_tmp.data(); \
-      ldb = b_tmp.outerStride(); \
+      ldb = convert_index<BlasIndex>(b_tmp.outerStride()); \
     } else b = _rhs; \
 \
-    MKLPREFIX##symm_(&side, &uplo, &m, &n, &numext::real_ref(alpha), (const MKLTYPE*)a, &lda, (const MKLTYPE*)b, &ldb, &numext::real_ref(beta), (MKLTYPE*)res, &ldc); \
+    MKLPREFIX##symm_(&side, &uplo, &m, &n, &numext::real_ref(alpha), (const BLASTYPE*)a, &lda, (const BLASTYPE*)b, &ldb, &numext::real_ref(beta), (BLASTYPE*)res, &ldc); \
 \
   } \
 };
 
 
-#define EIGEN_MKL_HEMM_L(EIGTYPE, MKLTYPE, EIGPREFIX, MKLPREFIX) \
+#define EIGEN_MKL_HEMM_L(EIGTYPE, BLASTYPE, EIGPREFIX, MKLPREFIX) \
 template <typename Index, \
           int LhsStorageOrder, bool ConjugateLhs, \
           int RhsStorageOrder, bool ConjugateRhs> \
@@ -101,7 +101,7 @@ struct product_selfadjoint_matrix<EIGTYPE,Index,LhsStorageOrder,true,ConjugateLh
     EIGTYPE alpha, level3_blocking<EIGTYPE, EIGTYPE>& /*blocking*/) \
   { \
     char side='L', uplo='L'; \
-    MKL_INT m, n, lda, ldb, ldc; \
+    BlasIndex m, n, lda, ldb, ldc; \
     const EIGTYPE *a, *b; \
     EIGTYPE beta(1); \
     MatrixX##EIGPREFIX b_tmp; \
@@ -109,13 +109,13 @@ struct product_selfadjoint_matrix<EIGTYPE,Index,LhsStorageOrder,true,ConjugateLh
 \
 /* Set transpose options */ \
 /* Set m, n, k */ \
-    m = (MKL_INT)rows; \
-    n = (MKL_INT)cols; \
+    m = convert_index<BlasIndex>(rows); \
+    n = convert_index<BlasIndex>(cols); \
 \
 /* Set lda, ldb, ldc */ \
-    lda = (MKL_INT)lhsStride; \
-    ldb = (MKL_INT)rhsStride; \
-    ldc = (MKL_INT)resStride; \
+    lda = convert_index<BlasIndex>(lhsStride); \
+    ldb = convert_index<BlasIndex>(rhsStride); \
+    ldc = convert_index<BlasIndex>(resStride); \
 \
 /* Set a, b, c */ \
     if (((LhsStorageOrder==ColMajor) && ConjugateLhs) || ((LhsStorageOrder==RowMajor) && (!ConjugateLhs))) { \
@@ -141,10 +141,10 @@ struct product_selfadjoint_matrix<EIGTYPE,Index,LhsStorageOrder,true,ConjugateLh
         b_tmp = rhs.transpose(); \
       } \
       b = b_tmp.data(); \
-      ldb = b_tmp.outerStride(); \
+      ldb = convert_index<BlasIndex>(b_tmp.outerStride()); \
     } \
 \
-    MKLPREFIX##hemm_(&side, &uplo, &m, &n, &numext::real_ref(alpha), (const MKLTYPE*)a, &lda, (const MKLTYPE*)b, &ldb, &numext::real_ref(beta), (MKLTYPE*)res, &ldc); \
+    MKLPREFIX##hemm_(&side, &uplo, &m, &n, &numext::real_ref(alpha), (const BLASTYPE*)a, &lda, (const BLASTYPE*)b, &ldb, &numext::real_ref(beta), (BLASTYPE*)res, &ldc); \
 \
   } \
 };
@@ -157,7 +157,7 @@ EIGEN_MKL_HEMM_L(scomplex, float, cf, c)
 
 /* Optimized matrix * selfadjoint matrix (?SYMM/?HEMM) product */
 
-#define EIGEN_MKL_SYMM_R(EIGTYPE, MKLTYPE, EIGPREFIX, MKLPREFIX) \
+#define EIGEN_MKL_SYMM_R(EIGTYPE, BLASTYPE, EIGPREFIX, MKLPREFIX) \
 template <typename Index, \
           int LhsStorageOrder, bool ConjugateLhs, \
           int RhsStorageOrder, bool ConjugateRhs> \
@@ -172,19 +172,19 @@ struct product_selfadjoint_matrix<EIGTYPE,Index,LhsStorageOrder,false,ConjugateL
     EIGTYPE alpha, level3_blocking<EIGTYPE, EIGTYPE>& /*blocking*/) \
   { \
     char side='R', uplo='L'; \
-    MKL_INT m, n, lda, ldb, ldc; \
+    BlasIndex m, n, lda, ldb, ldc; \
     const EIGTYPE *a, *b; \
     EIGTYPE beta(1); \
     MatrixX##EIGPREFIX b_tmp; \
 \
 /* Set m, n, k */ \
-    m = (MKL_INT)rows;  \
-    n = (MKL_INT)cols;  \
+    m = convert_index<BlasIndex>(rows);  \
+    n = convert_index<BlasIndex>(cols);  \
 \
 /* Set lda, ldb, ldc */ \
-    lda = (MKL_INT)rhsStride; \
-    ldb = (MKL_INT)lhsStride; \
-    ldc = (MKL_INT)resStride; \
+    lda = convert_index<BlasIndex>(rhsStride); \
+    ldb = convert_index<BlasIndex>(lhsStride); \
+    ldc = convert_index<BlasIndex>(resStride); \
 \
 /* Set a, b, c */ \
     if (RhsStorageOrder==RowMajor) uplo='U'; \
@@ -194,16 +194,16 @@ struct product_selfadjoint_matrix<EIGTYPE,Index,LhsStorageOrder,false,ConjugateL
       Map<const MatrixX##EIGPREFIX, 0, OuterStride<> > lhs(_lhs,n,m,OuterStride<>(rhsStride)); \
       b_tmp = lhs.adjoint(); \
       b = b_tmp.data(); \
-      ldb = b_tmp.outerStride(); \
+      ldb = convert_index<BlasIndex>(b_tmp.outerStride()); \
     } else b = _lhs; \
 \
-    MKLPREFIX##symm_(&side, &uplo, &m, &n, &numext::real_ref(alpha), (const MKLTYPE*)a, &lda, (const MKLTYPE*)b, &ldb, &numext::real_ref(beta), (MKLTYPE*)res, &ldc); \
+    MKLPREFIX##symm_(&side, &uplo, &m, &n, &numext::real_ref(alpha), (const BLASTYPE*)a, &lda, (const BLASTYPE*)b, &ldb, &numext::real_ref(beta), (BLASTYPE*)res, &ldc); \
 \
   } \
 };
 
 
-#define EIGEN_MKL_HEMM_R(EIGTYPE, MKLTYPE, EIGPREFIX, MKLPREFIX) \
+#define EIGEN_MKL_HEMM_R(EIGTYPE, BLASTYPE, EIGPREFIX, MKLPREFIX) \
 template <typename Index, \
           int LhsStorageOrder, bool ConjugateLhs, \
           int RhsStorageOrder, bool ConjugateRhs> \
@@ -217,27 +217,27 @@ struct product_selfadjoint_matrix<EIGTYPE,Index,LhsStorageOrder,false,ConjugateL
     EIGTYPE alpha, level3_blocking<EIGTYPE, EIGTYPE>& /*blocking*/) \
   { \
     char side='R', uplo='L'; \
-    MKL_INT m, n, lda, ldb, ldc; \
+    BlasIndex m, n, lda, ldb, ldc; \
     const EIGTYPE *a, *b; \
     EIGTYPE beta(1); \
     MatrixX##EIGPREFIX b_tmp; \
     Matrix<EIGTYPE, Dynamic, Dynamic, RhsStorageOrder> a_tmp; \
 \
 /* Set m, n, k */ \
-    m = (MKL_INT)rows; \
-    n = (MKL_INT)cols; \
+    m = convert_index<BlasIndex>(rows); \
+    n = convert_index<BlasIndex>(cols); \
 \
 /* Set lda, ldb, ldc */ \
-    lda = (MKL_INT)rhsStride; \
-    ldb = (MKL_INT)lhsStride; \
-    ldc = (MKL_INT)resStride; \
+    lda = convert_index<BlasIndex>(rhsStride); \
+    ldb = convert_index<BlasIndex>(lhsStride); \
+    ldc = convert_index<BlasIndex>(resStride); \
 \
 /* Set a, b, c */ \
     if (((RhsStorageOrder==ColMajor) && ConjugateRhs) || ((RhsStorageOrder==RowMajor) && (!ConjugateRhs))) { \
       Map<const Matrix<EIGTYPE, Dynamic, Dynamic, RhsStorageOrder>, 0, OuterStride<> > rhs(_rhs,n,n,OuterStride<>(rhsStride)); \
       a_tmp = rhs.conjugate(); \
       a = a_tmp.data(); \
-      lda = a_tmp.outerStride(); \
+      lda = convert_index<BlasIndex>(a_tmp.outerStride()); \
     } else a = _rhs; \
     if (RhsStorageOrder==RowMajor) uplo='U'; \
 \
@@ -259,7 +259,7 @@ struct product_selfadjoint_matrix<EIGTYPE,Index,LhsStorageOrder,false,ConjugateL
       ldb = b_tmp.outerStride(); \
     } \
 \
-    MKLPREFIX##hemm_(&side, &uplo, &m, &n, &numext::real_ref(alpha), (const MKLTYPE*)a, &lda, (const MKLTYPE*)b, &ldb, &numext::real_ref(beta), (MKLTYPE*)res, &ldc); \
+    MKLPREFIX##hemm_(&side, &uplo, &m, &n, &numext::real_ref(alpha), (const BLASTYPE*)a, &lda, (const BLASTYPE*)b, &ldb, &numext::real_ref(beta), (BLASTYPE*)res, &ldc); \
   } \
 };
 
diff --git a/Eigen/src/Core/products/SelfadjointMatrixVector_MKL.h b/Eigen/src/Core/products/SelfadjointMatrixVector_MKL.h
index 422aa1db1..2a8362202 100644
--- a/Eigen/src/Core/products/SelfadjointMatrixVector_MKL.h
+++ b/Eigen/src/Core/products/SelfadjointMatrixVector_MKL.h
@@ -71,7 +71,7 @@ EIGEN_MKL_SYMV_SPECIALIZE(float)
 EIGEN_MKL_SYMV_SPECIALIZE(dcomplex)
 EIGEN_MKL_SYMV_SPECIALIZE(scomplex)
 
-#define EIGEN_MKL_SYMV_SPECIALIZATION(EIGTYPE,MKLTYPE,MKLFUNC) \
+#define EIGEN_MKL_SYMV_SPECIALIZATION(EIGTYPE,BLASTYPE,MKLFUNC) \
 template<typename Index, int StorageOrder, int UpLo, bool ConjugateLhs, bool ConjugateRhs> \
 struct selfadjoint_matrix_vector_product_symv<EIGTYPE,Index,StorageOrder,UpLo,ConjugateLhs,ConjugateRhs> \
 { \
@@ -85,7 +85,7 @@ const EIGTYPE* _rhs, EIGTYPE* res, EIGTYPE alpha) \
     IsRowMajor = StorageOrder==RowMajor ? 1 : 0, \
     IsLower = UpLo == Lower ? 1 : 0 \
   }; \
-  MKL_INT n=size, lda=lhsStride, incx=1, incy=1; \
+  BlasIndex n=convert_index<BlasIndex>(size), lda=convert_index<BlasIndex>(lhsStride), incx=1, incy=1; \
   EIGTYPE beta(1); \
   const EIGTYPE *x_ptr; \
   char uplo=(IsRowMajor) ? (IsLower ? 'U' : 'L') : (IsLower ? 'L' : 'U'); \
@@ -95,7 +95,7 @@ const EIGTYPE* _rhs, EIGTYPE* res, EIGTYPE alpha) \
     x_tmp=map_x.conjugate(); \
     x_ptr=x_tmp.data(); \
   } else x_ptr=_rhs; \
-  MKLFUNC(&uplo, &n, &numext::real_ref(alpha), (const MKLTYPE*)lhs, &lda, (const MKLTYPE*)x_ptr, &incx, &numext::real_ref(beta), (MKLTYPE*)res, &incy); \
+  MKLFUNC(&uplo, &n, &numext::real_ref(alpha), (const BLASTYPE*)lhs, &lda, (const BLASTYPE*)x_ptr, &incx, &numext::real_ref(beta), (BLASTYPE*)res, &incy); \
 }\
 };
 
diff --git a/Eigen/src/Core/products/TriangularMatrixMatrix_MKL.h b/Eigen/src/Core/products/TriangularMatrixMatrix_MKL.h
index 31f6d2007..47a8698a7 100644
--- a/Eigen/src/Core/products/TriangularMatrixMatrix_MKL.h
+++ b/Eigen/src/Core/products/TriangularMatrixMatrix_MKL.h
@@ -75,7 +75,7 @@ EIGEN_MKL_TRMM_SPECIALIZE(scomplex, true)
 EIGEN_MKL_TRMM_SPECIALIZE(scomplex, false)
 
 // implements col-major += alpha * op(triangular) * op(general)
-#define EIGEN_MKL_TRMM_L(EIGTYPE, MKLTYPE, EIGPREFIX, MKLPREFIX) \
+#define EIGEN_MKL_TRMM_L(EIGTYPE, BLASTYPE, EIGPREFIX, MKLPREFIX) \
 template <typename Index, int Mode, \
           int LhsStorageOrder, bool ConjugateLhs, \
           int RhsStorageOrder, bool ConjugateRhs> \
@@ -122,7 +122,7 @@ struct product_triangular_matrix_matrix_trmm<EIGTYPE,Index,Mode,true, \
      /* Make sense to call GEMM */ \
        Map<const MatrixLhs, 0, OuterStride<> > lhsMap(_lhs,rows,depth,OuterStride<>(lhsStride)); \
        MatrixLhs aa_tmp=lhsMap.template triangularView<Mode>(); \
-       MKL_INT aStride = aa_tmp.outerStride(); \
+       BlasIndex aStride = convert_index<BlasIndex>(aa_tmp.outerStride()); \
        gemm_blocking_space<ColMajor,EIGTYPE,EIGTYPE,Dynamic,Dynamic,Dynamic> gemm_blocking(_rows,_cols,_depth, 1, true); \
        general_matrix_matrix_product<Index,EIGTYPE,LhsStorageOrder,ConjugateLhs,EIGTYPE,RhsStorageOrder,ConjugateRhs,ColMajor>::run( \
        rows, cols, depth, aa_tmp.data(), aStride, _rhs, rhsStride, res, resStride, alpha, gemm_blocking, 0); \
@@ -134,11 +134,11 @@ struct product_triangular_matrix_matrix_trmm<EIGTYPE,Index,Mode,true, \
    char side = 'L', transa, uplo, diag = 'N'; \
    EIGTYPE *b; \
    const EIGTYPE *a; \
-   MKL_INT m, n, lda, ldb; \
+   BlasIndex m, n, lda, ldb; \
 \
 /* Set m, n */ \
-   m = (MKL_INT)diagSize; \
-   n = (MKL_INT)cols; \
+   m = convert_index<BlasIndex>(diagSize); \
+   n = convert_index<BlasIndex>(cols); \
 \
 /* Set trans */ \
    transa = (LhsStorageOrder==RowMajor) ? ((ConjugateLhs) ? 'C' : 'T') : 'N'; \
@@ -149,7 +149,7 @@ struct product_triangular_matrix_matrix_trmm<EIGTYPE,Index,Mode,true, \
 \
    if (ConjugateRhs) b_tmp = rhs.conjugate(); else b_tmp = rhs; \
    b = b_tmp.data(); \
-   ldb = b_tmp.outerStride(); \
+   ldb = convert_index<BlasIndex>(b_tmp.outerStride()); \
 \
 /* Set uplo */ \
    uplo = IsLower ? 'L' : 'U'; \
@@ -165,14 +165,14 @@ struct product_triangular_matrix_matrix_trmm<EIGTYPE,Index,Mode,true, \
      else if (IsUnitDiag) \
        a_tmp.diagonal().setOnes();\
      a = a_tmp.data(); \
-     lda = a_tmp.outerStride(); \
+     lda = convert_index<BlasIndex>(a_tmp.outerStride()); \
    } else { \
      a = _lhs; \
-     lda = lhsStride; \
+     lda = convert_index<BlasIndex>(lhsStride); \
    } \
    /*std::cout << "TRMM_L: A is square! Go to MKL TRMM implementation! \n";*/ \
 /* call ?trmm*/ \
-   MKLPREFIX##trmm_(&side, &uplo, &transa, &diag, &m, &n, &numext::real_ref(alpha), (const MKLTYPE*)a, &lda, (MKLTYPE*)b, &ldb); \
+   MKLPREFIX##trmm_(&side, &uplo, &transa, &diag, &m, &n, &numext::real_ref(alpha), (const BLASTYPE*)a, &lda, (BLASTYPE*)b, &ldb); \
 \
 /* Add op(a_triangular)*b into res*/ \
    Map<MatrixX##EIGPREFIX, 0, OuterStride<> > res_tmp(res,rows,cols,OuterStride<>(resStride)); \
@@ -186,7 +186,7 @@ EIGEN_MKL_TRMM_L(float, float, f, s)
 EIGEN_MKL_TRMM_L(scomplex, float, cf, c)
 
 // implements col-major += alpha * op(general) * op(triangular)
-#define EIGEN_MKL_TRMM_R(EIGTYPE, MKLTYPE, EIGPREFIX, MKLPREFIX) \
+#define EIGEN_MKL_TRMM_R(EIGTYPE, BLASTYPE, EIGPREFIX, MKLPREFIX) \
 template <typename Index, int Mode, \
           int LhsStorageOrder, bool ConjugateLhs, \
           int RhsStorageOrder, bool ConjugateRhs> \
@@ -232,7 +232,7 @@ struct product_triangular_matrix_matrix_trmm<EIGTYPE,Index,Mode,false, \
      /* Make sense to call GEMM */ \
        Map<const MatrixRhs, 0, OuterStride<> > rhsMap(_rhs,depth,cols, OuterStride<>(rhsStride)); \
        MatrixRhs aa_tmp=rhsMap.template triangularView<Mode>(); \
-       MKL_INT aStride = aa_tmp.outerStride(); \
+       BlasIndex aStride = convert_index<BlasIndex>(aa_tmp.outerStride()); \
        gemm_blocking_space<ColMajor,EIGTYPE,EIGTYPE,Dynamic,Dynamic,Dynamic> gemm_blocking(_rows,_cols,_depth, 1, true); \
        general_matrix_matrix_product<Index,EIGTYPE,LhsStorageOrder,ConjugateLhs,EIGTYPE,RhsStorageOrder,ConjugateRhs,ColMajor>::run( \
        rows, cols, depth, _lhs, lhsStride, aa_tmp.data(), aStride, res, resStride, alpha, gemm_blocking, 0); \
@@ -244,11 +244,11 @@ struct product_triangular_matrix_matrix_trmm<EIGTYPE,Index,Mode,false, \
    char side = 'R', transa, uplo, diag = 'N'; \
    EIGTYPE *b; \
    const EIGTYPE *a; \
-   MKL_INT m, n, lda, ldb; \
+   BlasIndex m, n, lda, ldb; \
 \
 /* Set m, n */ \
-   m = (MKL_INT)rows; \
-   n = (MKL_INT)diagSize; \
+   m = convert_index<BlasIndex>(rows); \
+   n = convert_index<BlasIndex>(diagSize); \
 \
 /* Set trans */ \
    transa = (RhsStorageOrder==RowMajor) ? ((ConjugateRhs) ? 'C' : 'T') : 'N'; \
@@ -259,7 +259,7 @@ struct product_triangular_matrix_matrix_trmm<EIGTYPE,Index,Mode,false, \
 \
    if (ConjugateLhs) b_tmp = lhs.conjugate(); else b_tmp = lhs; \
    b = b_tmp.data(); \
-   ldb = b_tmp.outerStride(); \
+   ldb = convert_index<BlasIndex>(b_tmp.outerStride()); \
 \
 /* Set uplo */ \
    uplo = IsLower ? 'L' : 'U'; \
@@ -275,14 +275,14 @@ struct product_triangular_matrix_matrix_trmm<EIGTYPE,Index,Mode,false, \
      else if (IsUnitDiag) \
        a_tmp.diagonal().setOnes();\
      a = a_tmp.data(); \
-     lda = a_tmp.outerStride(); \
+     lda = convert_index<BlasIndex>(a_tmp.outerStride()); \
    } else { \
      a = _rhs; \
-     lda = rhsStride; \
+     lda = convert_index<BlasIndex>(rhsStride); \
    } \
    /*std::cout << "TRMM_R: A is square! Go to MKL TRMM implementation! \n";*/ \
 /* call ?trmm*/ \
-   MKLPREFIX##trmm_(&side, &uplo, &transa, &diag, &m, &n, &numext::real_ref(alpha), (const MKLTYPE*)a, &lda, (MKLTYPE*)b, &ldb); \
+   MKLPREFIX##trmm_(&side, &uplo, &transa, &diag, &m, &n, &numext::real_ref(alpha), (const BLASTYPE*)a, &lda, (BLASTYPE*)b, &ldb); \
 \
 /* Add op(a_triangular)*b into res*/ \
    Map<MatrixX##EIGPREFIX, 0, OuterStride<> > res_tmp(res,rows,cols,OuterStride<>(resStride)); \
diff --git a/Eigen/src/Core/products/TriangularMatrixVector_MKL.h b/Eigen/src/Core/products/TriangularMatrixVector_MKL.h
index 3aaea3457..17c9eeb44 100644
--- a/Eigen/src/Core/products/TriangularMatrixVector_MKL.h
+++ b/Eigen/src/Core/products/TriangularMatrixVector_MKL.h
@@ -71,7 +71,7 @@ EIGEN_MKL_TRMV_SPECIALIZE(dcomplex)
 EIGEN_MKL_TRMV_SPECIALIZE(scomplex)
 
 // implements col-major: res += alpha * op(triangular) * vector
-#define EIGEN_MKL_TRMV_CM(EIGTYPE, MKLTYPE, EIGPREFIX, MKLPREFIX) \
+#define EIGEN_MKL_TRMV_CM(EIGTYPE, BLASTYPE, EIGPREFIX, MKLPREFIX) \
 template<typename Index, int Mode, bool ConjLhs, bool ConjRhs> \
 struct triangular_matrix_vector_product_trmv<Index,Mode,EIGTYPE,ConjLhs,EIGTYPE,ConjRhs,ColMajor> { \
   enum { \
@@ -105,15 +105,15 @@ struct triangular_matrix_vector_product_trmv<Index,Mode,EIGTYPE,ConjLhs,EIGTYPE,
 /* Square part handling */\
 \
    char trans, uplo, diag; \
-   MKL_INT m, n, lda, incx, incy; \
+   BlasIndex m, n, lda, incx, incy; \
    EIGTYPE const *a; \
    EIGTYPE beta(1); \
 \
 /* Set m, n */ \
-   n = (MKL_INT)size; \
-   lda = lhsStride; \
+   n = convert_index<BlasIndex>(size); \
+   lda = convert_index<BlasIndex>(lhsStride); \
    incx = 1; \
-   incy = resIncr; \
+   incy = convert_index<BlasIndex>(resIncr); \
 \
 /* Set uplo, trans and diag*/ \
    trans = 'N'; \
@@ -121,10 +121,10 @@ struct triangular_matrix_vector_product_trmv<Index,Mode,EIGTYPE,ConjLhs,EIGTYPE,
    diag = IsUnitDiag ? 'U' : 'N'; \
 \
 /* call ?TRMV*/ \
-   MKLPREFIX##trmv_(&uplo, &trans, &diag, &n, (const MKLTYPE*)_lhs, &lda, (MKLTYPE*)x, &incx); \
+   MKLPREFIX##trmv_(&uplo, &trans, &diag, &n, (const BLASTYPE*)_lhs, &lda, (BLASTYPE*)x, &incx); \
 \
 /* Add op(a_tr)rhs into res*/ \
-   MKLPREFIX##axpy_(&n, &numext::real_ref(alpha),(const MKLTYPE*)x, &incx, (MKLTYPE*)_res, &incy); \
+   MKLPREFIX##axpy_(&n, &numext::real_ref(alpha),(const BLASTYPE*)x, &incx, (BLASTYPE*)_res, &incy); \
 /* Non-square case - doesn't fit to MKL ?TRMV. Fall to default triangular product*/ \
    if (size<(std::max)(rows,cols)) { \
      if (ConjRhs) x_tmp = rhs.conjugate(); else x_tmp = rhs; \
@@ -132,17 +132,17 @@ struct triangular_matrix_vector_product_trmv<Index,Mode,EIGTYPE,ConjLhs,EIGTYPE,
      if (size<rows) { \
        y = _res + size*resIncr; \
        a = _lhs + size; \
-       m = rows-size; \
-       n = size; \
+       m = convert_index<BlasIndex>(rows-size); \
+       n = convert_index<BlasIndex>(size); \
      } \
      else { \
        x += size; \
        y = _res; \
        a = _lhs + size*lda; \
-       m = size; \
-       n = cols-size; \
+       m = convert_index<BlasIndex>(size); \
+       n = convert_index<BlasIndex>(cols-size); \
      } \
-     MKLPREFIX##gemv_(&trans, &m, &n, &numext::real_ref(alpha), (const MKLTYPE*)a, &lda, (const MKLTYPE*)x, &incx, &numext::real_ref(beta), (MKLTYPE*)y, &incy); \
+     MKLPREFIX##gemv_(&trans, &m, &n, &numext::real_ref(alpha), (const BLASTYPE*)a, &lda, (const BLASTYPE*)x, &incx, &numext::real_ref(beta), (BLASTYPE*)y, &incy); \
    } \
   } \
 };
@@ -153,7 +153,7 @@ EIGEN_MKL_TRMV_CM(float,    float,  f,  s)
 EIGEN_MKL_TRMV_CM(scomplex, float,  cf, c)
 
 // implements row-major: res += alpha * op(triangular) * vector
-#define EIGEN_MKL_TRMV_RM(EIGTYPE, MKLTYPE, EIGPREFIX, MKLPREFIX) \
+#define EIGEN_MKL_TRMV_RM(EIGTYPE, BLASTYPE, EIGPREFIX, MKLPREFIX) \
 template<typename Index, int Mode, bool ConjLhs, bool ConjRhs> \
 struct triangular_matrix_vector_product_trmv<Index,Mode,EIGTYPE,ConjLhs,EIGTYPE,ConjRhs,RowMajor> { \
   enum { \
@@ -187,15 +187,15 @@ struct triangular_matrix_vector_product_trmv<Index,Mode,EIGTYPE,ConjLhs,EIGTYPE,
 /* Square part handling */\
 \
    char trans, uplo, diag; \
-   MKL_INT m, n, lda, incx, incy; \
+   BlasIndex m, n, lda, incx, incy; \
    EIGTYPE const *a; \
    EIGTYPE beta(1); \
 \
 /* Set m, n */ \
-   n = (MKL_INT)size; \
-   lda = lhsStride; \
+   n = convert_index<BlasIndex>(size); \
+   lda = convert_index<BlasIndex>(lhsStride); \
    incx = 1; \
-   incy = resIncr; \
+   incy = convert_index<BlasIndex>(resIncr); \
 \
 /* Set uplo, trans and diag*/ \
    trans = ConjLhs ? 'C' : 'T'; \
@@ -203,10 +203,10 @@ struct triangular_matrix_vector_product_trmv<Index,Mode,EIGTYPE,ConjLhs,EIGTYPE,
    diag = IsUnitDiag ? 'U' : 'N'; \
 \
 /* call ?TRMV*/ \
-   MKLPREFIX##trmv_(&uplo, &trans, &diag, &n, (const MKLTYPE*)_lhs, &lda, (MKLTYPE*)x, &incx); \
+   MKLPREFIX##trmv_(&uplo, &trans, &diag, &n, (const BLASTYPE*)_lhs, &lda, (BLASTYPE*)x, &incx); \
 \
 /* Add op(a_tr)rhs into res*/ \
-   MKLPREFIX##axpy_(&n, &numext::real_ref(alpha),(const MKLTYPE*)x, &incx, (MKLTYPE*)_res, &incy); \
+   MKLPREFIX##axpy_(&n, &numext::real_ref(alpha),(const BLASTYPE*)x, &incx, (BLASTYPE*)_res, &incy); \
 /* Non-square case - doesn't fit to MKL ?TRMV. Fall to default triangular product*/ \
    if (size<(std::max)(rows,cols)) { \
      if (ConjRhs) x_tmp = rhs.conjugate(); else x_tmp = rhs; \
@@ -214,17 +214,17 @@ struct triangular_matrix_vector_product_trmv<Index,Mode,EIGTYPE,ConjLhs,EIGTYPE,
      if (size<rows) { \
        y = _res + size*resIncr; \
        a = _lhs + size*lda; \
-       m = rows-size; \
-       n = size; \
+       m = convert_index<BlasIndex>(rows-size); \
+       n = convert_index<BlasIndex>(size); \
      } \
      else { \
        x += size; \
        y = _res; \
        a = _lhs + size; \
-       m = size; \
-       n = cols-size; \
+       m = convert_index<BlasIndex>(size); \
+       n = convert_index<BlasIndex>(cols-size); \
      } \
-     MKLPREFIX##gemv_(&trans, &n, &m, &numext::real_ref(alpha), (const MKLTYPE*)a, &lda, (const MKLTYPE*)x, &incx, &numext::real_ref(beta), (MKLTYPE*)y, &incy); \
+     MKLPREFIX##gemv_(&trans, &n, &m, &numext::real_ref(alpha), (const BLASTYPE*)a, &lda, (const BLASTYPE*)x, &incx, &numext::real_ref(beta), (BLASTYPE*)y, &incy); \
    } \
   } \
 };
diff --git a/Eigen/src/Core/products/TriangularSolverMatrix_MKL.h b/Eigen/src/Core/products/TriangularSolverMatrix_MKL.h
index 3677364e3..1f68a1cec 100644
--- a/Eigen/src/Core/products/TriangularSolverMatrix_MKL.h
+++ b/Eigen/src/Core/products/TriangularSolverMatrix_MKL.h
@@ -38,7 +38,7 @@ namespace Eigen {
 namespace internal {
 
 // implements LeftSide op(triangular)^-1 * general
-#define EIGEN_MKL_TRSM_L(EIGTYPE, MKLTYPE, MKLPREFIX) \
+#define EIGEN_MKL_TRSM_L(EIGTYPE, BLASTYPE, MKLPREFIX) \
 template <typename Index, int Mode, bool Conjugate, int TriStorageOrder> \
 struct triangular_solve_matrix<EIGTYPE,Index,OnTheLeft,Mode,Conjugate,TriStorageOrder,ColMajor> \
 { \
@@ -53,11 +53,11 @@ struct triangular_solve_matrix<EIGTYPE,Index,OnTheLeft,Mode,Conjugate,TriStorage
       const EIGTYPE* _tri, Index triStride, \
       EIGTYPE* _other, Index otherStride, level3_blocking<EIGTYPE,EIGTYPE>& /*blocking*/) \
   { \
-   MKL_INT m = size, n = otherSize, lda, ldb; \
+   BlasIndex m = convert_index<BlasIndex>(size), n = convert_index<BlasIndex>(otherSize), lda, ldb; \
    char side = 'L', uplo, diag='N', transa; \
    /* Set alpha_ */ \
    EIGTYPE alpha(1); \
-   ldb = otherStride;\
+   ldb = convert_index<BlasIndex>(otherStride);\
 \
    const EIGTYPE *a; \
 /* Set trans */ \
@@ -73,14 +73,14 @@ struct triangular_solve_matrix<EIGTYPE,Index,OnTheLeft,Mode,Conjugate,TriStorage
    if (conjA) { \
      a_tmp = tri.conjugate(); \
      a = a_tmp.data(); \
-     lda = a_tmp.outerStride(); \
+     lda = convert_index<BlasIndex>(a_tmp.outerStride()); \
    } else { \
      a = _tri; \
-     lda = triStride; \
+     lda = convert_index<BlasIndex>(triStride); \
    } \
    if (IsUnitDiag) diag='U'; \
 /* call ?trsm*/ \
-   MKLPREFIX##trsm_(&side, &uplo, &transa, &diag, &m, &n, &numext::real_ref(alpha), (const MKLTYPE*)a, &lda, (MKLTYPE*)_other, &ldb); \
+   MKLPREFIX##trsm_(&side, &uplo, &transa, &diag, &m, &n, &numext::real_ref(alpha), (const BLASTYPE*)a, &lda, (BLASTYPE*)_other, &ldb); \
  } \
 };
 
@@ -91,7 +91,7 @@ EIGEN_MKL_TRSM_L(scomplex, float,  c)
 
 
 // implements RightSide general * op(triangular)^-1
-#define EIGEN_MKL_TRSM_R(EIGTYPE, MKLTYPE, MKLPREFIX) \
+#define EIGEN_MKL_TRSM_R(EIGTYPE, BLASTYPE, MKLPREFIX) \
 template <typename Index, int Mode, bool Conjugate, int TriStorageOrder> \
 struct triangular_solve_matrix<EIGTYPE,Index,OnTheRight,Mode,Conjugate,TriStorageOrder,ColMajor> \
 { \
@@ -106,11 +106,11 @@ struct triangular_solve_matrix<EIGTYPE,Index,OnTheRight,Mode,Conjugate,TriStorag
       const EIGTYPE* _tri, Index triStride, \
       EIGTYPE* _other, Index otherStride, level3_blocking<EIGTYPE,EIGTYPE>& /*blocking*/) \
   { \
-   MKL_INT m = otherSize, n = size, lda, ldb; \
+   BlasIndex m = convert_index<BlasIndex>(otherSize), n = convert_index<BlasIndex>(size), lda, ldb; \
    char side = 'R', uplo, diag='N', transa; \
    /* Set alpha_ */ \
    EIGTYPE alpha(1); \
-   ldb = otherStride;\
+   ldb = convert_index<BlasIndex>(otherStride);\
 \
    const EIGTYPE *a; \
 /* Set trans */ \
@@ -126,14 +126,14 @@ struct triangular_solve_matrix<EIGTYPE,Index,OnTheRight,Mode,Conjugate,TriStorag
    if (conjA) { \
      a_tmp = tri.conjugate(); \
      a = a_tmp.data(); \
-     lda = a_tmp.outerStride(); \
+     lda = convert_index<BlasIndex>(a_tmp.outerStride()); \
    } else { \
      a = _tri; \
-     lda = triStride; \
+     lda = convert_index<BlasIndex>(triStride); \
    } \
    if (IsUnitDiag) diag='U'; \
 /* call ?trsm*/ \
-   MKLPREFIX##trsm_(&side, &uplo, &transa, &diag, &m, &n, &numext::real_ref(alpha), (const MKLTYPE*)a, &lda, (MKLTYPE*)_other, &ldb); \
+   MKLPREFIX##trsm_(&side, &uplo, &transa, &diag, &m, &n, &numext::real_ref(alpha), (const BLASTYPE*)a, &lda, (BLASTYPE*)_other, &ldb); \
    /*std::cout << "TRMS_L specialization!\n";*/ \
  } \
 };
diff --git a/Eigen/src/Core/util/MKL_support.h b/Eigen/src/Core/util/MKL_support.h
index de7847fc4..382014e66 100644
--- a/Eigen/src/Core/util/MKL_support.h
+++ b/Eigen/src/Core/util/MKL_support.h
@@ -114,7 +114,9 @@ typedef std::complex<double> dcomplex;
 typedef std::complex<float>  scomplex;
 
 #if defined(EIGEN_USE_BLAS) && !defined(EIGEN_USE_MKL)
-typedef int MKL_INT;
+typedef int BlasIndex;
+#else
+typedef MKL_INT BlasIndex;
 #endif
 
 namespace internal {