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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
#============================================================================
# Copyright 2012 Continuum Analytics, Inc.
#
# 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()
execute_process(COMMAND "${PYTHON_EXECUTABLE}" "-c"
"import numpy as np; print(np.__version__); print(np.get_include());"
RESULT_VARIABLE _NUMPY_SEARCH_SUCCESS
OUTPUT_VARIABLE _NUMPY_VALUES_OUTPUT
ERROR_VARIABLE _NUMPY_ERROR_VALUE
OUTPUT_STRIP_TRAILING_WHITESPACE)
if(_NUMPY_SEARCH_SUCCESS MATCHES 0)
# Convert the process output into a list
string(REGEX REPLACE ";" "\\\\;" _NUMPY_VALUES ${_NUMPY_VALUES_OUTPUT})
string(REGEX REPLACE "\n" ";" _NUMPY_VALUES ${_NUMPY_VALUES})
list(GET _NUMPY_VALUES 0 NUMPY_VERSION)
list(GET _NUMPY_VALUES 1 NUMPY_INCLUDE_DIRS)
string(REGEX MATCH "^[0-9]+\\.[0-9]+\\.[0-9]+" _VER_CHECK "${NUMPY_VERSION}")
if("${_VER_CHECK}" STREQUAL "")
# The output from Python was unexpected. Raise an error always
# here, because we found NumPy, but it appears to be corrupted somehow.
message(FATAL_ERROR
"Requested version and include path from NumPy, got instead:\n${_NUMPY_VALUES_OUTPUT}\n")
return()
endif()
# 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}")
endif()
# handle REQUIRED and QUIET options
include (FindPackageHandleStandardArgs)
find_package_handle_standard_args (NumPy REQUIRED_VARS NUMPY_INCLUDE_DIRS VERSION_VAR NUMPY_VERSION)
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