fi
CMAKE_OPTIONS=""
-CMAKE_OPTIONS=$CMAKE_OPTIONS" -DCMAKE_INSTALL_PREFIX:STRING=${PRODUCT_INSTALL}"
-CMAKE_OPTIONS=$CMAKE_OPTIONS" -DCMAKE_BUILD_TYPE:STRING=Release"
-CMAKE_OPTIONS=$CMAKE_OPTIONS" -DPYTHON_EXECUTABLE=${PYTHON_ROOT_DIR}/bin/python"
-CMAKE_OPTIONS=$CMAKE_OPTIONS" -DSWIG_EXECUTABLE=${SWIG_ROOT_DIR}/bin/swig"
+CMAKE_OPTIONS+=" -DCMAKE_INSTALL_PREFIX:STRING=${PRODUCT_INSTALL}"
+CMAKE_OPTIONS+=" -DCMAKE_BUILD_TYPE:STRING=Release"
+CMAKE_OPTIONS+=" -DPYTHON_EXECUTABLE=${PYTHONBIN}"
+CMAKE_OPTIONS+=" -DSWIG_EXECUTABLE=${SWIG_ROOT_DIR}/bin/swig"
echo
echo "*** cmake" $CMAKE_OPTIONS