IPP_VERSION_X100 was changed to:

IPP_VERSION_MAJOR * 100 + IPP_VERSION_MINOR*10 + IPP_VERSION_UPDATE
to manage changes between updates more easily.

IPP_DISABLE_BLOCK was added to ease tracking of disabled IPP functions;

modules/core/src/matmul.cpp

@@ -2916,7 +2916,7 @@ dotProd_(const T* src1, const T* src2, int len)
 static double dotProd_8u(const uchar* src1, const uchar* src2, int len)
 {
     double r = 0;
-#if ARITHM_USE_IPP && 0
+#if ARITHM_USE_IPP && IPP_DISABLE_BLOCK
     CV_IPP_CHECK()
     {
         if (0 <= ippiDotProd_8u64f_C1R(src1, (int)(len*sizeof(src1[0])),