--- scilab-6.1.0/modules/matio/src/cpp/GetSparseVariable.cpp.orig	2021-05-15 20:35:23.779949805 +0200
+++ scilab-6.1.0/modules/matio/src/cpp/GetSparseVariable.cpp	2021-05-15 20:36:43.336525958 +0200
@@ -65,7 +65,7 @@
     int* itemsRow = new int[pSparse->getRows()];
     pSparse->getNbItemByRow(itemsRow);
 
-    int* colIndexes = (int*)MALLOC(sizeof(int) *  (pSparse->getRows() + 1));
+    mat_uint32_t* colIndexes = (mat_uint32_t*)MALLOC(sizeof(mat_uint32_t) *  (pSparse->getRows() + 1));
     if (colIndexes == NULL)
     {
         FREE(sparseData);
@@ -82,7 +82,7 @@
         colIndexes[K + 1] = colIndexes[K] + itemsRow[K];
     }
 
-    int* rowIndexes = (int*)MALLOC(sizeof(int) *  nonZeros);
+    mat_uint32_t* rowIndexes = (mat_uint32_t*)MALLOC(sizeof(mat_uint32_t) *  nonZeros);
     if (rowIndexes == NULL)
     {
         FREE(sparseData);