# Data Parallel Control (dpctl)

#

# Copyright 2020-2025 Intel Corporation

#

# 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.

import os

import os.path

import sys

is_venv = sys.base_exec_prefix != sys.exec_prefix and os.path.isfile(

os.path.join(sys.exec_prefix, "pyvenv.cfg")

)

if sys.platform == "win32": # pragma: no cover

# Include folder containing DPCTLSyclInterface.dll to search path

os.add_dll_directory(os.path.dirname(__file__))

if is_venv:

# For virtual environments on Windows, add folder

# with DPC++ libraries to the DLL search path gh-1745

dll_dir = os.path.join(sys.exec_prefix, "Library", "bin")

if os.path.isdir(dll_dir):

os.add_dll_directory(dll_dir)

os.environ["PATH"] = os.pathsep.join(

[os.getenv("PATH", ""), dll_dir]

)

del is_venv

is_linux = sys.platform.startswith("linux")

if is_linux:

# forking is not supported by device drivers

# Configure subprocess (used by versioneer) to

# use SPAWN method over FORK method to enable

# use of gdb-oneapi to debug code launched by

# native extensions that used dpctl C/C++ API

import subprocess

subprocess._USE_VFORK = False

subprocess._USE_POSIX_SPAWN = True

# remove qualifier from this namespace

del subprocess

del is_linux