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# SPDX-FileCopyrightText: 2024 The meson-python developers
#
# SPDX-License-Identifier: MIT
import os
import sys
# start-literalinclude
def _append_to_sharedlib_load_path():
"""Ensure the shared libraries in this package can be loaded on Windows.
Windows lacks a concept equivalent to RPATH: Python extension modules
cannot find DLLs installed outside the DLL search path. This function
ensures that the location of the shared libraries distributed inside this
Python package is in the DLL search path of the process.
The Windows DLL search path includes the path to the object attempting
to load the DLL: it needs to be augmented only when the Python extension
modules and the DLLs they require are installed in separate directories.
Cygwin does not have the same default library search path: all locations
where the shared libraries are installed need to be added to the search
path.
This function is very similar to the snippet inserted into the main
``__init__.py`` of a package by ``delvewheel`` when it vendors external
shared libraries.
.. note::
`os.add_dll_directory` is only available for Python 3.8 and later, and
in the Conda ``python`` packages it works as advertised only for
version 3.10 and later. For older Python versions, pre-loading the DLLs
with `ctypes.WinDLL` may be preferred.
"""
basedir = os.path.dirname(__file__)
subdir = os.path.join(basedir, 'sub')
if os.name == 'nt':
os.add_dll_directory(subdir)
elif sys.platform == 'cygwin':
os.environ['PATH'] = os.pathsep.join((os.environ['PATH'], basedir, subdir))
_append_to_sharedlib_load_path()
# end-literalinclude
from ._example import example_prod, example_sum #noqa: E402
__all__ = ['example_prod', 'example_sum']
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