xtensor-python/cmake/FindNumPy.cmake at master · wolfv/xtensor-python · GitHub

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# - Find the NumPy libraries

# This module finds if NumPy is installed, and sets the following variables

# indicating where it is.

# TODO: Update to provide the libraries and paths for linking npymath lib.

# NUMPY_FOUND - was NumPy found

# NUMPY_VERSION - the version of NumPy found as a string

# NUMPY_VERSION_MAJOR - the major version number of NumPy

# NUMPY_VERSION_MINOR - the minor version number of NumPy

# NUMPY_VERSION_PATCH - the patch version number of NumPy

# NUMPY_VERSION_DECIMAL - e.g. version 1.6.1 is 10601

# NUMPY_INCLUDE_DIRS - path to the NumPy include files

#============================================================================

# MIT License

# Permission is hereby granted, free of charge, to any person obtaining

# a copy of this software and associated documentation files

# (the "Software"), to deal in the Software without restriction, including

# without limitation the rights to use, copy, modify, merge, publish,

# distribute, sublicense, and/or sell copies of the Software, and to permit

# persons to whom the Software is furnished to do so, subject to

# the following conditions:

# The above copyright notice and this permission notice shall be included

# in all copies or substantial portions of the Software.

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR

# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,

# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

# OTHER DEALINGS IN THE SOFTWARE.

#============================================================================

# Finding NumPy involves calling the Python interpreter

if(NumPy_FIND_REQUIRED)

find_package(PythonInterp REQUIRED)

else()

find_package(PythonInterp)

endif()

if(NOT PYTHONINTERP_FOUND)

set(NUMPY_FOUND FALSE)

endif()

execute_process(COMMAND "${PYTHON_EXECUTABLE}" "-c"

"import numpy as n; print(n.__version__); print(n.get_include());"

RESULT_VARIABLE _NUMPY_SEARCH_SUCCESS

OUTPUT_VARIABLE _NUMPY_VALUES

ERROR_VARIABLE _NUMPY_ERROR_VALUE

OUTPUT_STRIP_TRAILING_WHITESPACE)

if(NOT _NUMPY_SEARCH_SUCCESS MATCHES 0)

if(NumPy_FIND_REQUIRED)

message(FATAL_ERROR

"NumPy import failure:\n${_NUMPY_ERROR_VALUE}")

endif()

set(NUMPY_FOUND FALSE)

endif()

# Convert the process output into a list

string(REGEX REPLACE ";" "\\\\;" _NUMPY_VALUES ${_NUMPY_VALUES})

string(REGEX REPLACE "\n" ";" _NUMPY_VALUES ${_NUMPY_VALUES})

list(GET _NUMPY_VALUES 0 NUMPY_VERSION)

list(GET _NUMPY_VALUES 1 NUMPY_INCLUDE_DIRS)

# Make sure all directory separators are '/'

string(REGEX REPLACE "\\\\" "/" NUMPY_INCLUDE_DIRS ${NUMPY_INCLUDE_DIRS})

# Get the major and minor version numbers

string(REGEX REPLACE "\\." ";" _NUMPY_VERSION_LIST ${NUMPY_VERSION})

list(GET _NUMPY_VERSION_LIST 0 NUMPY_VERSION_MAJOR)

list(GET _NUMPY_VERSION_LIST 1 NUMPY_VERSION_MINOR)

list(GET _NUMPY_VERSION_LIST 2 NUMPY_VERSION_PATCH)

string(REGEX MATCH "[0-9]*" NUMPY_VERSION_PATCH ${NUMPY_VERSION_PATCH})

math(EXPR NUMPY_VERSION_DECIMAL

"(${NUMPY_VERSION_MAJOR} * 10000) + (${NUMPY_VERSION_MINOR} * 100) + ${NUMPY_VERSION_PATCH}")

find_package_message(NUMPY

"Found NumPy: version \"${NUMPY_VERSION}\" ${NUMPY_INCLUDE_DIRS}"

"${NUMPY_INCLUDE_DIRS}${NUMPY_VERSION}")

set(NUMPY_FOUND TRUE)

xtensor-python/cmake/FindNumPy.cmake at master · wolfv/xtensor-python · GitHub

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