gtsam/cmake/FindCython.cmake

70 lines
2.1 KiB
CMake

# Modifed from: https://github.com/nest/nest-simulator/blob/master/cmake/FindCython.cmake
#
# Find the Cython compiler.
#
# This code sets the following variables:
#
# CYTHON_EXECUTABLE
# CYTHON_FOUND
# CYTHON_VERSION
#
# See also UseCython.cmake
#=============================================================================
# Copyright 2011 Kitware, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#=============================================================================
# Use the Cython executable that lives next to the Python executable
# if it is a local installation.
find_package( PythonInterp )
if ( PYTHONINTERP_FOUND )
get_filename_component( _python_path ${PYTHON_EXECUTABLE} PATH )
find_program( CYTHON_EXECUTABLE
NAMES cython cython.bat cython3
PATHS ${_python_path}
NO_DEFAULT_PATH
)
else ()
find_program( CYTHON_EXECUTABLE
NAMES cython cython.bat cython3
)
endif ()
if ( NOT CYTHON_EXECUTABLE STREQUAL "CYTHON_EXECUTABLE-NOTFOUND" )
execute_process(
COMMAND ${CYTHON_EXECUTABLE} --version
RESULT_VARIABLE RESULT
OUTPUT_VARIABLE CYTHON_VAR_OUTPUT
ERROR_VARIABLE CYTHON_VAR_OUTPUT
OUTPUT_STRIP_TRAILING_WHITESPACE
)
if ( RESULT EQUAL 0 )
string( REGEX REPLACE ".* ([0-9]+\\.[0-9]+(\\.[0-9]+)?).*" "\\1"
CYTHON_VERSION "${CYTHON_VAR_OUTPUT}" )
endif ()
endif ()
include( FindPackageHandleStandardArgs )
find_package_handle_standard_args( Cython
FOUND_VAR
CYTHON_FOUND
REQUIRED_VARS
CYTHON_EXECUTABLE
VERSION_VAR
CYTHON_VERSION
)
mark_as_advanced( CYTHON_EXECUTABLE )