diff --git a/cmake/onetbb.cmake b/cmake/onetbb.cmake
index 750a42c79..aa6d8b131 100644
--- a/cmake/onetbb.cmake
+++ b/cmake/onetbb.cmake
@@ -2,29 +2,26 @@
 include_directories(${CMAKE_SOURCE_DIR}/3rdparty/onetbb/include)
 
 include(ExternalProject)
+
 if(WIN32)
-    ExternalProject_Add(ppc_onetbb
-            SOURCE_DIR        "${CMAKE_SOURCE_DIR}/3rdparty/onetbb"
-            PREFIX            "${CMAKE_CURRENT_BINARY_DIR}/ppc_onetbb"
-            BINARY_DIR        "${CMAKE_CURRENT_BINARY_DIR}/ppc_onetbb/build"
-            INSTALL_DIR       "${CMAKE_CURRENT_BINARY_DIR}/ppc_onetbb/install"
-            CONFIGURE_COMMAND "${CMAKE_COMMAND}" -S "${CMAKE_SOURCE_DIR}/3rdparty/onetbb/" -B "${CMAKE_CURRENT_BINARY_DIR}/ppc_onetbb/build/" -DCMAKE_CXX_FLAGS="-w" -DCMAKE_C_FLAGS="-w"
-            -DCMAKE_CXX_COMPILER=cl -DCMAKE_C_COMPILER=cl -D CMAKE_C_COMPILER_LAUNCHER=${CMAKE_C_COMPILER_LAUNCHER} -D CMAKE_CXX_COMPILER_LAUNCHER=${CMAKE_CXX_COMPILER_LAUNCHER}
-            -G${CMAKE_GENERATOR} -DTBB_TEST=OFF -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
-            BUILD_COMMAND     "${CMAKE_COMMAND}" --build "${CMAKE_CURRENT_BINARY_DIR}/ppc_onetbb/build" --config ${CMAKE_BUILD_TYPE} --parallel
-            INSTALL_COMMAND   "${CMAKE_COMMAND}" --install "${CMAKE_CURRENT_BINARY_DIR}/ppc_onetbb/build" --prefix "${CMAKE_CURRENT_BINARY_DIR}/ppc_onetbb/install"
-            TEST_COMMAND      "${CMAKE_COMMAND}" -E copy_directory "${CMAKE_CURRENT_BINARY_DIR}/ppc_onetbb/install/bin" "${CMAKE_RUNTIME_OUTPUT_DIRECTORY}")
+    set(ppc_onetbb_TEST_COMMAND "${CMAKE_COMMAND}" -E copy_directory "${CMAKE_CURRENT_BINARY_DIR}/ppc_onetbb/install/bin" "${CMAKE_RUNTIME_OUTPUT_DIRECTORY}")
 else()
-    ExternalProject_Add(ppc_onetbb
-            SOURCE_DIR        "${CMAKE_SOURCE_DIR}/3rdparty/onetbb"
-            PREFIX            "${CMAKE_CURRENT_BINARY_DIR}/ppc_onetbb"
-            BINARY_DIR        "${CMAKE_CURRENT_BINARY_DIR}/ppc_onetbb/build"
-            INSTALL_DIR       "${CMAKE_CURRENT_BINARY_DIR}/ppc_onetbb/install"
-            CONFIGURE_COMMAND "${CMAKE_COMMAND}" -S "${CMAKE_SOURCE_DIR}/3rdparty/onetbb/" -B "${CMAKE_CURRENT_BINARY_DIR}/ppc_onetbb/build/" -DCMAKE_CXX_FLAGS="-w" -DCMAKE_C_FLAGS="-w"
-            -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER} -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER} -D CMAKE_C_COMPILER_LAUNCHER=${CMAKE_C_COMPILER_LAUNCHER} -D CMAKE_CXX_COMPILER_LAUNCHER=${CMAKE_CXX_COMPILER_LAUNCHER}
-            -G${CMAKE_GENERATOR} -DTBB_TEST=OFF -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
-            BUILD_COMMAND     "${CMAKE_COMMAND}" --build "${CMAKE_CURRENT_BINARY_DIR}/ppc_onetbb/build" --config ${CMAKE_BUILD_TYPE} --parallel
-            INSTALL_COMMAND   "${CMAKE_COMMAND}" --install "${CMAKE_CURRENT_BINARY_DIR}/ppc_onetbb/build" --prefix "${CMAKE_CURRENT_BINARY_DIR}/ppc_onetbb/install")
+    set(ppc_onetbb_TEST_COMMAND "")
 endif()
+
+ExternalProject_Add(ppc_onetbb
+    SOURCE_DIR        "${CMAKE_SOURCE_DIR}/3rdparty/onetbb"
+    PREFIX            "${CMAKE_CURRENT_BINARY_DIR}/ppc_onetbb"
+    BINARY_DIR        "${CMAKE_CURRENT_BINARY_DIR}/ppc_onetbb/build"
+    INSTALL_DIR       "${CMAKE_CURRENT_BINARY_DIR}/ppc_onetbb/install"
+    CONFIGURE_COMMAND "${CMAKE_COMMAND}" -S "${CMAKE_SOURCE_DIR}/3rdparty/onetbb/" -B "${CMAKE_CURRENT_BINARY_DIR}/ppc_onetbb/build/"
+                      -DCMAKE_CXX_FLAGS="-w" -DCMAKE_C_FLAGS="-w"
+                      -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER} -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
+                      -DCMAKE_C_COMPILER_LAUNCHER=${CMAKE_C_COMPILER_LAUNCHER} -DCMAKE_CXX_COMPILER_LAUNCHER=${CMAKE_CXX_COMPILER_LAUNCHER}
+                      -G${CMAKE_GENERATOR} -DTBB_TEST=OFF -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
+    BUILD_COMMAND     "${CMAKE_COMMAND}" --build "${CMAKE_CURRENT_BINARY_DIR}/ppc_onetbb/build" --config ${CMAKE_BUILD_TYPE} --parallel
+    INSTALL_COMMAND   "${CMAKE_COMMAND}" --install "${CMAKE_CURRENT_BINARY_DIR}/ppc_onetbb/build" --prefix "${CMAKE_CURRENT_BINARY_DIR}/ppc_onetbb/install"
+    TEST_COMMAND      ${ppc_onetbb_TEST_COMMAND}
+)
 install(DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/ppc_onetbb/install/"
         DESTINATION "${CMAKE_INSTALL_PREFIX}")