diff --git a/modules/dnn/CMakeLists.txt b/modules/dnn/CMakeLists.txt
index 71407459c..7e7a47199 100644
--- a/modules/dnn/CMakeLists.txt
+++ b/modules/dnn/CMakeLists.txt
@@ -36,35 +36,12 @@ include(cmake/OpenCVFindLibProtobuf.cmake)
 ocv_source_group("Src\\protobuf" FILES ${PROTOBUF_SRCS} ${PROTOBUF_HDRS})
 ocv_module_include_directories(include ${PROTOBUF_INCLUDE_DIR})
 
-# ----------------------------------------------------------------------------
-# Try to find BLAS libraries
-# ----------------------------------------------------------------------------
-OCV_OPTION(${the_module}_WITH_BLAS "Use external BLAS library to speedup processing" OFF)
-include(cmake/OpenCVFindCBLAS.cmake)
-
 ocv_glob_module_sources(${PROTOBUF_SRCS} ${PROTOBUF_HDRS} ${CBLAS_H_PROXY_PATH})
 ocv_create_module(${PROTOBUF_LIBRARIES})
 ocv_add_samples()
 ocv_add_accuracy_tests()
 ocv_add_perf_tests()
 
-# ----------------------------------------------------------------------------
-# Link BLAS
-# ----------------------------------------------------------------------------
-if(${the_module}_WITH_BLAS AND HAVE_BLAS)
-    add_definitions(-DHAVE_CBLAS=1)
-    ocv_module_include_directories(${${the_module}_BLAS_INCLUDE_DIR})
-    ocv_add_dependencies(${the_module} ${${the_module}_BLAS_LIBRARIES})
-    target_link_libraries(${the_module} ${${the_module}_BLAS_LIBRARIES})
-
-    if(${the_module}_BLAS_BINARIES)
-        ocv_install_target(${the_module} EXPORT ${the_module}_BLAS_BINARIES
-                           RUNTIME DESTINATION ${OPENCV_BIN_INSTALL_PATH} COMPONENT libs)
-    endif()
-else()
-    add_definitions(-DHAVE_CBLAS=0)
-endif()
-
 # ----------------------------------------------------------------------------
 # Download pre-trained models for complex testing on GoogLeNet and AlexNet
 # ----------------------------------------------------------------------------
diff --git a/modules/dnn/cmake/FindAtlas.cmake b/modules/dnn/cmake/FindAtlas.cmake
deleted file mode 100644
index 9781e9b12..000000000
--- a/modules/dnn/cmake/FindAtlas.cmake
+++ /dev/null
@@ -1,97 +0,0 @@
-#COPYRIGHT
-#
-#All contributions by the University of California:
-#Copyright (c) 2014, 2015, The Regents of the University of California (Regents)
-#All rights reserved.
-#
-#All other contributions:
-#Copyright (c) 2014, 2015, the respective contributors
-#All rights reserved.
-#
-#Caffe uses a shared copyright model: each contributor holds copyright over
-#their contributions to Caffe. The project versioning records all such
-#contribution and copyright details. If a contributor wants to further mark
-#their specific copyright on a particular contribution, they should indicate
-#their copyright solely in the commit message of the change when it is
-#committed.
-#
-#LICENSE
-#
-#Redistribution and use in source and binary forms, with or without
-#modification, are permitted provided that the following conditions are met:
-#
-#1. Redistributions of source code must retain the above copyright notice, this
-#   list of conditions and the following disclaimer.
-#2. Redistributions in binary form must reproduce the above copyright notice,
-#   this list of conditions and the following disclaimer in the documentation
-#   and/or other materials provided with the distribution.
-#
-#THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-#ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-#WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-#DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
-#ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-#(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-#LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-#ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-#(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-#SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-#
-#CONTRIBUTION AGREEMENT
-#
-#By contributing to the BVLC/caffe repository through pull-request, comment,
-#or otherwise, the contributor releases their content to the
-#license and copyright terms herein.
-
-
-# Find the Atlas (and Lapack) libraries
-#
-# The following variables are optionally searched for defaults
-#  Atlas_ROOT_DIR:            Base directory where all Atlas components are found
-#
-# The following are set after configuration is done:
-#  Atlas_FOUND
-#  Atlas_INCLUDE_DIRS
-#  Atlas_LIBRARIES
-#  Atlas_LIBRARYRARY_DIRS
-
-set(Atlas_INCLUDE_SEARCH_PATHS
-  /usr/include/atlas
-  /usr/include/atlas-base
-  $ENV{Atlas_ROOT_DIR}
-  $ENV{Atlas_ROOT_DIR}/include
-)
-
-set(Atlas_LIB_SEARCH_PATHS
-  /usr/lib/atlas
-  /usr/lib/atlas-base
-  $ENV{Atlas_ROOT_DIR}
-  $ENV{Atlas_ROOT_DIR}/lib
-)
-
-find_path(Atlas_CBLAS_INCLUDE_DIR   NAMES cblas.h   PATHS ${Atlas_INCLUDE_SEARCH_PATHS})
-find_path(Atlas_CLAPACK_INCLUDE_DIR NAMES clapack.h PATHS ${Atlas_INCLUDE_SEARCH_PATHS})
-
-find_library(Atlas_CBLAS_LIBRARY NAMES  ptcblas_r ptcblas cblas_r cblas PATHS ${Atlas_LIB_SEARCH_PATHS})
-find_library(Atlas_BLAS_LIBRARY NAMES   atlas_r   atlas                 PATHS ${Atlas_LIB_SEARCH_PATHS})
-find_library(Atlas_LAPACK_LIBRARY NAMES alapack_r alapack lapack_atlas  PATHS ${Atlas_LIB_SEARCH_PATHS})
-
-set(LOOKED_FOR
-  Atlas_CBLAS_INCLUDE_DIR
-  Atlas_CLAPACK_INCLUDE_DIR
-
-  Atlas_CBLAS_LIBRARY
-  Atlas_BLAS_LIBRARY
-  Atlas_LAPACK_LIBRARY
-)
-
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(Atlas DEFAULT_MSG ${LOOKED_FOR})
-
-if(ATLAS_FOUND)
-  set(Atlas_INCLUDE_DIR ${Atlas_CBLAS_INCLUDE_DIR} ${Atlas_CLAPACK_INCLUDE_DIR})
-  set(Atlas_LIBRARIES ${Atlas_LAPACK_LIBRARY} ${Atlas_CBLAS_LIBRARY} ${Atlas_BLAS_LIBRARY})
-  mark_as_advanced(${LOOKED_FOR})
-
-  message(STATUS "Found Atlas (include: ${Atlas_CBLAS_INCLUDE_DIR}, library: ${Atlas_BLAS_LIBRARY})")
-endif(ATLAS_FOUND)
\ No newline at end of file
diff --git a/modules/dnn/cmake/FindOpenBLAS.cmake b/modules/dnn/cmake/FindOpenBLAS.cmake
deleted file mode 100644
index 60594dee4..000000000
--- a/modules/dnn/cmake/FindOpenBLAS.cmake
+++ /dev/null
@@ -1,106 +0,0 @@
-#COPYRIGHT
-#
-#All contributions by the University of California:
-#Copyright (c) 2014, 2015, The Regents of the University of California (Regents)
-#All rights reserved.
-#
-#All other contributions:
-#Copyright (c) 2014, 2015, the respective contributors
-#All rights reserved.
-#
-#Caffe uses a shared copyright model: each contributor holds copyright over
-#their contributions to Caffe. The project versioning records all such
-#contribution and copyright details. If a contributor wants to further mark
-#their specific copyright on a particular contribution, they should indicate
-#their copyright solely in the commit message of the change when it is
-#committed.
-#
-#LICENSE
-#
-#Redistribution and use in source and binary forms, with or without
-#modification, are permitted provided that the following conditions are met:
-#
-#1. Redistributions of source code must retain the above copyright notice, this
-#   list of conditions and the following disclaimer.
-#2. Redistributions in binary form must reproduce the above copyright notice,
-#   this list of conditions and the following disclaimer in the documentation
-#   and/or other materials provided with the distribution.
-#
-#THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-#ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-#WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-#DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
-#ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-#(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-#LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-#ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-#(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-#SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-#
-#CONTRIBUTION AGREEMENT
-#
-#By contributing to the BVLC/caffe repository through pull-request, comment,
-#or otherwise, the contributor releases their content to the
-#license and copyright terms herein.
-
-SET(Open_BLAS_INCLUDE_SEARCH_PATHS
-  /usr/include
-  /usr/include/openblas
-  /usr/include/openblas-base
-  /usr/local/include
-  /usr/local/include/openblas
-  /usr/local/include/openblas-base
-  /opt/OpenBLAS/include
-  $ENV{OpenBLAS_HOME}
-  $ENV{OpenBLAS_HOME}/include
-)
-
-SET(Open_BLAS_LIB_SEARCH_PATHS
-        /lib/
-        /lib/openblas-base
-        /lib64/
-        /usr/lib
-        /usr/lib/openblas-base
-        /usr/lib64
-        /usr/local/lib
-        /usr/local/lib64
-        /opt/OpenBLAS/lib
-        $ENV{OpenBLAS}cd
-        $ENV{OpenBLAS}/lib
-        $ENV{OpenBLAS_HOME}
-        $ENV{OpenBLAS_HOME}/lib
- )
-
-FIND_PATH(OpenBLAS_INCLUDE_DIR NAMES cblas.h PATHS ${Open_BLAS_INCLUDE_SEARCH_PATHS})
-FIND_LIBRARY(OpenBLAS_LIB NAMES openblas PATHS ${Open_BLAS_LIB_SEARCH_PATHS})
-
-SET(OpenBLAS_FOUND ON)
-
-#    Check include files
-IF(NOT OpenBLAS_INCLUDE_DIR)
-    SET(OpenBLAS_FOUND OFF)
-    MESSAGE(STATUS "Could not find OpenBLAS include. Turning OpenBLAS_FOUND off")
-ENDIF()
-
-#    Check libraries
-IF(NOT OpenBLAS_LIB)
-    SET(OpenBLAS_FOUND OFF)
-    MESSAGE(STATUS "Could not find OpenBLAS lib. Turning OpenBLAS_FOUND off")
-ENDIF()
-
-IF (OpenBLAS_FOUND)
-  IF (NOT OpenBLAS_FIND_QUIETLY)
-    MESSAGE(STATUS "Found OpenBLAS libraries: ${OpenBLAS_LIB}")
-    MESSAGE(STATUS "Found OpenBLAS include: ${OpenBLAS_INCLUDE_DIR}")
-  ENDIF (NOT OpenBLAS_FIND_QUIETLY)
-ELSE (OpenBLAS_FOUND)
-  IF (OpenBLAS_FIND_REQUIRED)
-    MESSAGE(FATAL_ERROR "Could not find OpenBLAS")
-  ENDIF (OpenBLAS_FIND_REQUIRED)
-ENDIF (OpenBLAS_FOUND)
-
-MARK_AS_ADVANCED(
-    OpenBLAS_INCLUDE_DIR
-    OpenBLAS_LIB
-    OpenBLAS
-)
\ No newline at end of file
diff --git a/modules/dnn/cmake/OpenCVFindCBLAS.cmake b/modules/dnn/cmake/OpenCVFindCBLAS.cmake
deleted file mode 100644
index 2c4179b44..000000000
--- a/modules/dnn/cmake/OpenCVFindCBLAS.cmake
+++ /dev/null
@@ -1,60 +0,0 @@
-macro(_find_file_in_dirs VAR NAME DIRS)
-    find_path(${VAR} ${NAME} ${DIRS} NO_DEFAULT_PATH)
-    set(${VAR} ${${VAR}}/${NAME})
-    unset(${VAR} CACHE)
-endmacro()
-
-if(${the_module}_WITH_BLAS)
-    set(_bp ${the_module}_BLAS) #prefix for blas variables
-    set(BLAS_CBLAS_H "cblas.h")
-    set(HAVE_BLAS "")
-
-    if(NOT HAVE_BLAS) #check custom BLAS from user input
-        if(${_bp}_INCLUDE_DIR AND ${_bp}_LIBRARIES AND ${_bp}_CBLAS_H)
-            set(HAVE_BLAS "Custom")
-        endif()
-    endif()
-    if(NOT HAVE_BLAS)
-        include(cmake/OpenCVFindMKL.cmake)
-        if(HAVE_MKL)
-            set(BLAS_INCLUDE_DIR    ${MKL_INCLUDE_DIRS})
-            set(BLAS_LIBRARIES      ${MKL_LIBRARIES}   )
-            set(BLAS_CBLAS_H        "mkl_cblas.h"      )
-            set(HAVE_BLAS "MKL")
-        endif()
-    endif()
-    if(NOT HAVE_BLAS)
-        include(cmake/FindOpenBLAS.cmake)
-        if(OpenBLAS_FOUND)
-            set(BLAS_INCLUDE_DIR    ${OpenBLAS_INCLUDE_DIR} )
-            set(BLAS_LIBRARIES      ${OpenBLAS_LIB}         )
-            set(HAVE_BLAS "OpenBLAS")
-        endif()
-    endif()
-    if(NOT HAVE_BLAS AND UNIX)
-        include(cmake/FindAtlas.cmake)
-        if(ATLAS_FOUND)
-            set(BLAS_INCLUDE_DIR    ${Atlas_INCLUDE_DIR})
-            set(BLAS_LIBRARIES      ${Atlas_LIBRARIES}  )
-            set(HAVE_BLAS "Atlas")
-        endif()
-    endif()
-
-    if(NOT HAVE_BLAS OR NOT (HAVE_BLAS STREQUAL "Custom"))
-        set(${_bp}_INCLUDE_DIR  ${BLAS_INCLUDE_DIR} CACHE PATH      "Path to BLAS include dir" FORCE)
-        set(${_bp}_CBLAS_H      ${BLAS_CBLAS_H}     CACHE STRING    "Alternative name of cblas.h" FORCE)
-        set(${_bp}_LIBRARIES    ${BLAS_LIBRARIES}   CACHE FILEPATH  "Path to BLAS libraries that will be linked with ${the_module} module" FORCE)
-        set(${_bp}_BINARIES     ${BLAS_BINARIES}    CACHE FILEPATH  "Path to BLAS binaries (.so, .dll) that will be installed with ${the_module} module" FORCE)
-    endif()
-
-    if(HAVE_BLAS) #adding proxy cblas.h header
-        _find_file_in_dirs(CBLAS_H_PATH ${${_bp}_CBLAS_H} ${${_bp}_INCLUDE_DIR})
-        if(NOT CBLAS_H_PATH)
-            message(WARNING "CBLAS header '${${_bp}_CBLAS_H}' not found into '${${_bp}_INCLUDE_DIR}'")
-        endif()
-
-        set(CBLAS_H_PROXY_PATH ${CMAKE_CURRENT_BINARY_DIR}/opencv_cblas.hpp)
-        set(_include_str "\#include \"${CBLAS_H_PATH}\"")
-        file(WRITE ${CBLAS_H_PROXY_PATH} ${_include_str})
-    endif()
-endif()
\ No newline at end of file
diff --git a/modules/dnn/cmake/OpenCVFindMKL.cmake b/modules/dnn/cmake/OpenCVFindMKL.cmake
deleted file mode 100644
index f43ce9c28..000000000
--- a/modules/dnn/cmake/OpenCVFindMKL.cmake
+++ /dev/null
@@ -1,136 +0,0 @@
-#
-# The script to detect Intel(R) Math Kernel Library (MKL)
-# installation/package
-#
-# Parameters:
-# MKL_WITH_TBB
-#
-# On return this will define:
-#
-# HAVE_MKL          - True if Intel IPP found
-# MKL_ROOT_DIR      - root of IPP installation
-# MKL_INCLUDE_DIRS  - IPP include folder
-# MKL_LIBRARIES     - IPP libraries that are used by OpenCV
-#
-
-macro (mkl_find_lib VAR NAME DIRS)
-    find_path(${VAR} ${NAME} ${DIRS} NO_DEFAULT_PATH)
-    set(${VAR} ${${VAR}}/${NAME})
-    unset(${VAR} CACHE)
-endmacro()
-
-macro(mkl_fail)
-    set(HAVE_MKL OFF CACHE BOOL "True if MKL found")
-    set(MKL_ROOT_DIR ${MKL_ROOT_DIR} CACHE PATH "Path to MKL directory")
-    unset(MKL_INCLUDE_DIRS CACHE)
-    unset(MKL_LIBRARIES CACHE)
-    return()
-endmacro()
-
-macro(get_mkl_version VERSION_FILE)
-    # read MKL version info from file
-    file(STRINGS ${VERSION_FILE} STR1 REGEX "__INTEL_MKL__")
-    file(STRINGS ${VERSION_FILE} STR2 REGEX "__INTEL_MKL_MINOR__")
-    file(STRINGS ${VERSION_FILE} STR3 REGEX "__INTEL_MKL_UPDATE__")
-    #file(STRINGS ${VERSION_FILE} STR4 REGEX "INTEL_MKL_VERSION")
-
-    # extract info and assign to variables
-    string(REGEX MATCHALL "[0-9]+" MKL_VERSION_MAJOR ${STR1})
-    string(REGEX MATCHALL "[0-9]+" MKL_VERSION_MINOR ${STR2})
-    string(REGEX MATCHALL "[0-9]+" MKL_VERSION_UPDATE ${STR3})
-    set(MKL_VERSION_STR "${MKL_VERSION_MAJOR}.${MKL_VERSION_MINOR}.${MKL_VERSION_UPDATE}" CACHE STRING "MKL version" FORCE)
-endmacro()
-
-
-if(NOT DEFINED MKL_USE_MULTITHREAD)
-    OCV_OPTION(MKL_WITH_TBB "Use MKL with TBB multithreading" OFF)#ON IF WITH_TBB)
-    OCV_OPTION(MKL_WITH_OPENMP "Use MKL with OpenMP multithreading" OFF)#ON IF WITH_OPENMP)
-endif()
-
-#check current MKL_ROOT_DIR
-if(NOT MKL_ROOT_DIR OR NOT EXISTS ${MKL_ROOT_DIR}/include/mkl.h)
-    set(mkl_root_paths ${MKL_ROOT_DIR})
-    if(DEFINED $ENV{MKLROOT})
-        list(APPEND mkl_root_paths $ENV{MKLROOT})
-    endif()
-    if(WIN32)
-        set(ProgramFilesx86 "ProgramFiles(x86)")
-        list(APPEND mkl_root_paths $ENV{${ProgramFilesx86}}/IntelSWTools/compilers_and_libraries/windows/mkl)
-    endif()
-    if(UNIX)
-        list(APPEND mkl_root_paths "/opt/intel/mkl")
-    endif()
-
-    find_path(MKL_ROOT_DIR include/mkl.h PATHS ${mkl_root_paths})
-endif()
-
-if(NOT MKL_ROOT_DIR)
-    mkl_fail()
-endif()
-
-set(MKL_INCLUDE_DIRS ${MKL_ROOT_DIR}/include)
-get_mkl_version(${MKL_INCLUDE_DIRS}/mkl_version.h)
-
-#determine arch
-if(CMAKE_CXX_SIZEOF_DATA_PTR EQUAL 8)
-    set(MKL_X64 1)
-    set(MKL_ARCH "intel64")
-
-    include(CheckTypeSize)
-    CHECK_TYPE_SIZE(int _sizeof_int)
-    if (_sizeof_int EQUAL 4)
-        set(MKL_LP64 "lp64")
-    else()
-        set(MKL_LP64 "ilp64")
-    endif()
-else()
-    set(MKL_ARCH "ia32")
-endif()
-
-if(${MKL_VERSION_STR} VERSION_GREATER "11.3.0" OR ${MKL_VERSION_STR} VERSION_EQUAL "11.3.0")
-    set(mkl_lib_find_paths
-        ${MKL_ROOT_DIR}/lib
-        ${MKL_ROOT_DIR}/lib/${MKL_ARCH} ${MKL_ROOT_DIR}/../tbb/lib/${MKL_ARCH})
-
-    set(mkl_lib_list
-        mkl_core
-        mkl_intel_${MKL_LP64})
-
-    if(MKL_WITH_TBB)
-        list(APPEND mkl_lib_list mkl_tbb_thread tbb)
-    elseif(MKL_WITH_OPENMP)
-        if(MSVC)
-            list(APPEND mkl_lib_list mkl_intel_thread libiomp5md)
-        else()
-            list(APPEND mkl_lib_list libmkl_gnu_thread)
-        endif()
-    else()
-        list(APPEND mkl_lib_list mkl_sequential)
-    endif()
-else()
-    message(STATUS "MKL version ${MKL_VERSION_STR} is not supported")
-    mkl_fail()
-endif()
-
-
-set(MKL_LIBRARIES "")
-foreach(lib ${mkl_lib_list})
-    find_library(${lib} ${lib} ${mkl_lib_find_paths})
-    mark_as_advanced(${lib})
-    if(NOT ${lib})
-        mkl_fail()
-    endif()
-    list(APPEND MKL_LIBRARIES ${${lib}})
-endforeach()
-
-message(STATUS "Found MKL ${MKL_VERSION_STR} at: ${MKL_ROOT_DIR}")
-set(HAVE_MKL ON CACHE BOOL "True if MKL found")
-set(MKL_ROOT_DIR ${MKL_ROOT_DIR} CACHE PATH "Path to MKL directory")
-set(MKL_INCLUDE_DIRS ${MKL_INCLUDE_DIRS} CACHE PATH "Path to MKL include directory")
-if(NOT UNIX)
-    set(MKL_LIBRARIES ${MKL_LIBRARIES} CACHE FILEPATH "MKL libarries")
-else()
-    #it's ugly but helps to avoid cyclic lib problem
-    set(MKL_LIBRARIES ${MKL_LIBRARIES} ${MKL_LIBRARIES} ${MKL_LIBRARIES} "-lpthread" "-lm" "-ldl")
-    set(MKL_LIBRARIES ${MKL_LIBRARIES} CACHE STRING "MKL libarries")
-endif()
\ No newline at end of file
diff --git a/modules/dnn/src/layers/op_blas.cpp b/modules/dnn/src/layers/op_blas.cpp
index 375d36563..5f7f44663 100644
--- a/modules/dnn/src/layers/op_blas.cpp
+++ b/modules/dnn/src/layers/op_blas.cpp
@@ -1,7 +1,7 @@
 #include "op_blas.hpp"
 
-#if HAVE_CBLAS
-#include "opencv_cblas.hpp"
+#ifdef HAVE_LAPACK
+#include "opencv_lapack.h"
 #endif
 
 #include <iostream>
@@ -99,15 +99,7 @@ public:
 
 void gemmCPU(const Mat &A, const Mat &B, double alpha, Mat &C, double beta, int flags /*= 0*/)
 {
-    if( C.type() == CV_32F && flags == 0 )
-    {
-        GEMMInvoker invoker(&A, &B, alpha, &C, beta);
-        double granularity = 10000000./((double)A.rows*A.cols);
-        parallel_for_(Range(0, B.cols), invoker, granularity);
-    }
-    else
-    {
-    #if HAVE_CBLAS
+    #ifdef HAVE_LAPACK
     bool transA = static_cast<bool>(flags & GEMM_1_T);
     bool transB = static_cast<bool>(flags & GEMM_2_T);
     bool transC = static_cast<bool>(flags & GEMM_3_T);
@@ -145,9 +137,15 @@ void gemmCPU(const Mat &A, const Mat &B, double alpha, Mat &C, double beta, int
         CV_Error(Error::BadDepth, "Only floating point types are supported");
     }
     #else
-    cv::gemm(A, B, alpha, C, beta, C, flags);
-    #endif
+    if( C.type() == CV_32F && flags == 0 )
+    {
+        GEMMInvoker invoker(&A, &B, alpha, &C, beta);
+        double granularity = 10000000./((double)A.rows*A.cols);
+        parallel_for_(Range(0, B.cols), invoker, granularity);
     }
+    else
+        cv::gemm(A, B, alpha, C, beta, C, flags);
+    #endif
 }
 
 int getBlasThreads()
diff --git a/modules/dnn/src/layers/shift_layer.cpp b/modules/dnn/src/layers/shift_layer.cpp
index 451b91900..98bfdfc73 100644
--- a/modules/dnn/src/layers/shift_layer.cpp
+++ b/modules/dnn/src/layers/shift_layer.cpp
@@ -133,7 +133,7 @@ ShiftLayer::ShiftLayer(LayerParams &params) : Layer(params)
 {
     CV_Assert(blobs.size() == 1);
 
-    #if HAVE_CBLAS
+    #ifdef HAVE_LAPACK
     {
         if (getBlasThreads() != cv::getThreadNum())
         {