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# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2021-2022 Intel Corporation
# - Find SYCL library
# Find the native SYCL header and libraries needed by oneAPI implementation
# This module defines
# SYCL_COMPILER, compiler which will be used for compilation of SYCL code
# SYCL_LIBRARY, libraries to link against in order to use SYCL.
# SYCL_INCLUDE_DIR, directories where SYCL headers can be found
# SYCL_ROOT_DIR, The base directory to search for SYCL files.
# This can also be an environment variable.
# SYCL_FOUND, If false, then don't try to use SYCL.
IF(NOT SYCL_ROOT_DIR AND NOT $ENV{SYCL_ROOT_DIR} STREQUAL "")
SET(SYCL_ROOT_DIR $ENV{SYCL_ROOT_DIR})
ENDIF()
SET(_sycl_search_dirs
${SYCL_ROOT_DIR}
/usr/lib
/usr/local/lib
/opt/intel/oneapi/compiler/latest/linux/
C:/Program\ Files\ \(x86\)/Intel/oneAPI/compiler/latest/windows
)
# Find DPC++ compiler.
# Since the compiler name is possibly conflicting with the system-wide
# CLang start with looking for either dpcpp or clang binary in the given
# list of search paths only. If that fails, try to look for a system-wide
# dpcpp binary.
FIND_PROGRAM(SYCL_COMPILER
NAMES
icpx
dpcpp
clang++
HINTS
${_sycl_search_dirs}
PATH_SUFFIXES
bin
NO_CMAKE_FIND_ROOT_PATH
NAMES_PER_DIR
)
# NOTE: No clang++ here so that we do not pick up a system-wide CLang
# compiler.
if(NOT SYCL_COMPILER)
FIND_PROGRAM(SYCL_COMPILER
NAMES
icpx
dpcpp
HINTS
${_sycl_search_dirs}
PATH_SUFFIXES
bin
)
endif()
FIND_LIBRARY(SYCL_LIBRARY
NAMES
sycl7
sycl6
sycl
HINTS
${_sycl_search_dirs}
PATH_SUFFIXES
lib64 lib
)
if(WIN32)
FIND_LIBRARY(SYCL_LIBRARY_DEBUG
NAMES
sycl7d
sycl6d
sycld
HINTS
${_sycl_search_dirs}
PATH_SUFFIXES
lib64 lib
)
endif()
FIND_PATH(SYCL_INCLUDE_DIR
NAMES
sycl/sycl.hpp
HINTS
${_sycl_search_dirs}
PATH_SUFFIXES
include
)
IF(EXISTS "${SYCL_INCLUDE_DIR}/sycl/version.hpp")
FILE(STRINGS "${SYCL_INCLUDE_DIR}/sycl/version.hpp" _libsycl_major_version REGEX "^#define __LIBSYCL_MAJOR_VERSION[ \t].*$")
STRING(REGEX MATCHALL "[0-9]+" _libsycl_major_version ${_libsycl_major_version})
FILE(STRINGS "${SYCL_INCLUDE_DIR}/sycl/version.hpp" _libsycl_minor_version REGEX "^#define __LIBSYCL_MINOR_VERSION[ \t].*$")
STRING(REGEX MATCHALL "[0-9]+" _libsycl_minor_version ${_libsycl_minor_version})
FILE(STRINGS "${SYCL_INCLUDE_DIR}/sycl/version.hpp" _libsycl_patch_version REGEX "^#define __LIBSYCL_PATCH_VERSION[ \t].*$")
STRING(REGEX MATCHALL "[0-9]+" _libsycl_patch_version ${_libsycl_patch_version})
SET(SYCL_VERSION "${_libsycl_major_version}.${_libsycl_minor_version}.${_libsycl_patch_version}")
ENDIF()
INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(SYCL
REQUIRED_VARS SYCL_LIBRARY SYCL_INCLUDE_DIR
VERSION_VAR SYCL_VERSION
)
IF(SYCL_FOUND)
SET(SYCL_INCLUDE_DIR ${SYCL_INCLUDE_DIR} ${SYCL_INCLUDE_DIR}/sycl)
ELSE()
SET(SYCL_SYCL_FOUND FALSE)
ENDIF()
MARK_AS_ADVANCED(
_SYCL_INCLUDE_PARENT_DIR
)
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