An error when I compile gtsam

[yabanbingliang]

When I run cmake .. , I got errors in the picture.
Can you tell me how to fix this problem?

[penghongc]

cd gtsam/cmake/FindCython.cmake
vim FindCython.cmake

Use the Cython executable that lives next to the Python executable

if it is a local installation.

find_package( PythonInterp )
if ( PYTHONINTERP_FOUND )
execute_process( COMMAND "${PYTHON_EXECUTABLE}" "-c"
"import Cython; print(Cython.path)" _#print Cython._path-> print(Cython.path)
RESULT_VARIABLE RESULT
OUTPUT_VARIABLE CYTHON_PATH
OUTPUT_STRIP_TRAILING_WHITESPACE
)
endif ()

RESULT=0 means ok

if ( NOT RESULT )
get_filename_component( _python_path ${PYTHON_EXECUTABLE} PATH )
find_program( CYTHON_EXECUTABLE
NAMES cython cython.bat cython3
HINTS ${_python_path}
)
endif ()

RESULT=0 means ok

if ( NOT RESULT )
execute_process( COMMAND "${PYTHON_EXECUTABLE}" "-c"
"import Cython; print(Cython.version)" _#print Cython._path-> print(Cython.path)
RESULT_VARIABLE RESULT
OUTPUT_VARIABLE CYTHON_VAR_OUTPUT
ERROR_VARIABLE CYTHON_VAR_OUTPUT
OUTPUT_STRIP_TRAILING_WHITESPACE
)
if ( RESULT EQUAL 0 )
string( REGEX REPLACE ".* ([0-9]+\.[0-9]+(\.[0-9]+)?).*" "\1"
CYTHON_VERSION "${CYTHON_VAR_OUTPUT}" )
endif ()
endif ()

include( FindPackageHandleStandardArgs )
find_package_handle_standard_args( Cython
FOUND_VAR
CYTHON_FOUND
REQUIRED_VARS
CYTHON_PATH
CYTHON_EXECUTABLE
VERSION_VAR
CYTHON_VERSION
)