if (PYTHON_EXECUTABLE)
install(CODE "execute_process(
- COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_BINARY_DIR}/setup.py install
-+ COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_BINARY_DIR}/setup.py install --optimize=2 --root=\$ENV{DESTDIR}
++ COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_BINARY_DIR}/setup.py install --optimize=2 --root=\$ENV{DESTDIR} --prefix=${CMAKE_INSTALL_PREFIX}
WORKING_DIRECTORY \"${CMAKE_CURRENT_SOURCE_DIR}\")")
endif()