function(check_pygemini)

# Numpy conflicts are a general source of trouble

execute_process(COMMAND ${Python_EXECUTABLE} -c "import numpy"

RESULT_VARIABLE ret

OUTPUT_VARIABLE out

ERROR_VARIABLE err

)

if(NOT ret EQUAL 0)

message(VERBOSE "Problem with Python Numpy:

${ret}

${out}

${err}"

)

return()

endif()

# need h5py for Python tests

execute_process(COMMAND ${Python_EXECUTABLE} -c "import h5py,numpy,sys; print(f'Python {sys.version} Numpy {numpy.__version__} h5py {h5py.__version__}')"

RESULT_VARIABLE ret

OUTPUT_VARIABLE out

ERROR_VARIABLE err

)

if(ret EQUAL 0)

set(H5PY_FOUND true CACHE BOOL "Python h5py Found")

else()

message(VERBOSE "Problem with Python h5py:

${ret}

${out}

${err}"

)

return()

endif()

if(NOT python)

return()

endif()

execute_process(COMMAND ${Python_EXECUTABLE} -c "import gemini3d; print(gemini3d.__version__)"

WORKING_DIRECTORY ${PROJECT_SOURCE_DIR} # help avoid Intel Windows false import error due to hdf5 .dll in build dir

RESULT_VARIABLE ret

OUTPUT_VARIABLE out

ERROR_VARIABLE err

OUTPUT_STRIP_TRAILING_WHITESPACE

)

if(NOT ret EQUAL 0)

message(FATAL_ERROR "Failed to get PyGemini version:

${ret}

${out}

${err}"

)

endif()

endfunction()

find_package(Python COMPONENTS Interpreter)

if(Python_FOUND AND NOT DEFINED PYGEMINI_FOUND)

check_pygemini()

endif()