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#.rst:
#
# Find the include directory for ``numpy/arrayobject.h`` as well as other NumPy tools like ``conv-template`` and
# ``from-template``.
#
# This module sets the following variables:
#
# ``NumPy_FOUND``
# True if NumPy was found.
# ``NumPy_INCLUDE_DIRS``
# The include directories needed to use NumpPy.
# ``NumPy_VERSION``
# The version of NumPy found.
# ``NumPy_CONV_TEMPLATE_EXECUTABLE``
# Path to conv-template executable.
# ``NumPy_FROM_TEMPLATE_EXECUTABLE``
# Path to from-template executable.
#
# The module will also explicitly define one cache variable:
#
# ``NumPy_INCLUDE_DIR``
#
# .. note::
#
# To support NumPy < v0.15.0 where ``from-template`` and ``conv-template`` are not declared as entry points,
# the module emulates the behavior of standalone executables by setting the corresponding variables with the
# path the the python interpreter and the path to the associated script. For example:
# ::
#
# set(NumPy_CONV_TEMPLATE_EXECUTABLE /path/to/python /path/to/site-packages/numpy/distutils/conv_template.py CACHE STRING "Command executing conv-template program" FORCE)
#
# set(NumPy_FROM_TEMPLATE_EXECUTABLE /path/to/python /path/to/site-packages/numpy/distutils/from_template.py CACHE STRING "Command executing from-template program" FORCE)
#
if(NOT NumPy_FOUND)
set(_find_extra_args)
if(NumPy_FIND_REQUIRED)
list(APPEND _find_extra_args REQUIRED)
endif()
if(NumPy_FIND_QUIET)
list(APPEND _find_extra_args QUIET)
endif()
find_program(NumPy_CONV_TEMPLATE_EXECUTABLE NAMES conv-template)
find_program(NumPy_FROM_TEMPLATE_EXECUTABLE NAMES from-template)
if(PYTHON_EXECUTABLE)
execute_process(COMMAND "${PYTHON_EXECUTABLE}"
-c "import numpy; print(numpy.get_include())"
OUTPUT_VARIABLE _numpy_include_dir
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_QUIET
)
execute_process(COMMAND "${PYTHON_EXECUTABLE}"
-c "import numpy; print(numpy.__version__)"
OUTPUT_VARIABLE NumPy_VERSION
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_QUIET
)
# XXX This is required to support NumPy < v0.15.0. See note in module documentation above.
if(NOT NumPy_CONV_TEMPLATE_EXECUTABLE)
execute_process(COMMAND "${PYTHON_EXECUTABLE}"
-c "from numpy.distutils import conv_template; print(conv_template.__file__)"
OUTPUT_VARIABLE _numpy_conv_template_file
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_QUIET
)
set(NumPy_CONV_TEMPLATE_EXECUTABLE "${PYTHON_EXECUTABLE}" "${_numpy_conv_template_file}" CACHE STRING "Command executing conv-template program" FORCE)
endif()
# XXX This is required to support NumPy < v0.15.0. See note in module documentation above.
if(NOT NumPy_FROM_TEMPLATE_EXECUTABLE)
execute_process(COMMAND "${PYTHON_EXECUTABLE}"
-c "from numpy.distutils import from_template; print(from_template.__file__)"
OUTPUT_VARIABLE _numpy_from_template_file
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_QUIET
)
set(NumPy_FROM_TEMPLATE_EXECUTABLE "${PYTHON_EXECUTABLE}" "${_numpy_from_template_file}" CACHE STRING "Command executing from-template program" FORCE)
endif()
endif()
endif()
find_path(NumPy_INCLUDE_DIR
numpy/arrayobject.h
PATHS "${_numpy_include_dir}" "${PYTHON_INCLUDE_DIR}"
PATH_SUFFIXES numpy/core/include
)
set(NumPy_INCLUDE_DIRS ${NumPy_INCLUDE_DIR})
# handle the QUIETLY and REQUIRED arguments and set NumPy_FOUND to TRUE if
# all listed variables are TRUE
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(NumPy
REQUIRED_VARS
NumPy_INCLUDE_DIR
NumPy_CONV_TEMPLATE_EXECUTABLE
NumPy_FROM_TEMPLATE_EXECUTABLE
VERSION_VAR NumPy_VERSION
)
mark_as_advanced(NumPy_INCLUDE_DIR)
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