Merge pull request #11317 from alalek:issue_11303

modules/core/include/opencv2/core/private.hpp

@@ -184,6 +184,8 @@ T* allocSingleton(size_t count) { return static_cast<T*>(fastMalloc(sizeof(T) *
 #define IPP_DISABLE_HAAR                1 // improper integration/results
 #define IPP_DISABLE_HOUGH               1 // improper integration/results
 
+#define IPP_DISABLE_GAUSSIANBLUR_PARALLEL 1 // not supported (2017u2 / 2017u3)
+
 // Temporary disabled named IPP region. Performance
 #define IPP_DISABLE_PERF_COPYMAKE       1 // performance variations
 #define IPP_DISABLE_PERF_LUT            1 // there are no performance benefits (PR #2653)

modules/imgproc/src/smooth.cpp

@@ -4003,7 +4003,8 @@ static bool openvx_gaussianBlur(InputArray _src, OutputArray _dst, Size ksize,
 #endif
 
 #ifdef HAVE_IPP
-#if IPP_VERSION_X100 == 201702  // IW 2017u2 has bug which doesn't allow use of partial inMem with tiling
+// IW 2017u2 has bug which doesn't allow use of partial inMem with tiling
+#if IPP_DISABLE_GAUSSIANBLUR_PARALLEL
 #define IPP_GAUSSIANBLUR_PARALLEL 0
 #else
 #define IPP_GAUSSIANBLUR_PARALLEL 1