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# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2021-2022 Intel Corporation
# - Find Level Zero library
# Find Level Zero headers and libraries needed by oneAPI implementation
# This module defines
# LEVEL_ZERO_LIBRARY, libraries to link against in order to use L0.
# LEVEL_ZERO_INCLUDE_DIR, directories where L0 headers can be found.
# LEVEL_ZERO_ROOT_DIR, The base directory to search for L0 files.
# This can also be an environment variable.
# LEVEL_ZERO_FOUND, If false, then don't try to use L0.
IF(NOT LEVEL_ZERO_ROOT_DIR AND NOT $ENV{LEVEL_ZERO_ROOT_DIR} STREQUAL "")
SET(LEVEL_ZERO_ROOT_DIR $ENV{LEVEL_ZERO_ROOT_DIR})
ENDIF()
SET(_level_zero_search_dirs
${LEVEL_ZERO_ROOT_DIR}
/usr/lib
/usr/local/lib
)
FIND_LIBRARY(_LEVEL_ZERO_LIBRARY
NAMES
ze_loader
HINTS
${_level_zero_search_dirs}
PATH_SUFFIXES
lib64 lib
)
FIND_PATH(_LEVEL_ZERO_INCLUDE_DIR
NAMES
level_zero/ze_api.h
HINTS
${_level_zero_search_dirs}
PATH_SUFFIXES
include
)
INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(LevelZero DEFAULT_MSG _LEVEL_ZERO_LIBRARY _LEVEL_ZERO_INCLUDE_DIR)
IF(LevelZero_FOUND)
SET(LEVEL_ZERO_LIBRARY ${_LEVEL_ZERO_LIBRARY})
SET(LEVEL_ZERO_INCLUDE_DIR ${_LEVEL_ZERO_INCLUDE_DIR} ${_LEVEL_ZERO_INCLUDE_PARENT_DIR})
SET(LEVEL_ZERO_FOUND TRUE)
ELSE()
SET(LEVEL_ZERO_FOUND FALSE)
ENDIF()
MARK_AS_ADVANCED(
LEVEL_ZERO_LIBRARY
LEVEL_ZERO_INCLUDE_DIR
)
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