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# This will define the following variables:
# SYCL_FOUND : True if the system has the SYCL library.
# SYCL_INCLUDE_DIR : Include directories needed to use SYCL.
# SYCL_LIBRARY_DIR ：The path to the SYCL library.
# SYCL_LIBRARY : SYCL library fullname.
include(FindPackageHandleStandardArgs)
set(SYCL_ROOT "")
if(DEFINED ENV{SYCL_ROOT})
set(SYCL_ROOT $ENV{SYCL_ROOT})
elseif(DEFINED ENV{CMPLR_ROOT})
set(SYCL_ROOT $ENV{CMPLR_ROOT})
endif()
string(COMPARE EQUAL "${SYCL_ROOT}" "" nosyclfound)
if(nosyclfound)
set(SYCL_FOUND False)
set(SYCL_REASON_FAILURE "SYCL library not set!!")
set(SYCL_NOT_FOUND_MESSAGE "${SYCL_REASON_FAILURE}")
return()
endif()
# Find include path from binary.
find_file(
SYCL_INCLUDE_DIR
NAMES include
HINTS ${SYCL_ROOT}
NO_DEFAULT_PATH
)
# Find include/sycl path from include path.
find_file(
SYCL_INCLUDE_SYCL_DIR
NAMES sycl
HINTS ${SYCL_ROOT}/include/
NO_DEFAULT_PATH
)
# Due to the unrecognized compilation option `-fsycl` in other compiler.
list(APPEND SYCL_INCLUDE_DIR ${SYCL_INCLUDE_SYCL_DIR})
# Find library directory from binary.
find_file(
SYCL_LIBRARY_DIR
NAMES lib lib64
HINTS ${SYCL_ROOT}
NO_DEFAULT_PATH
)
# Find SYCL library fullname.
find_library(
SYCL_LIBRARY
NAMES sycl
HINTS ${SYCL_LIBRARY_DIR}
NO_DEFAULT_PATH
)
# On Windows, currently there's no sycl.lib. Only sycl7.lib with version suffix,
# where the current version of the SYCL runtime is 7.
# Until oneAPI adds support to sycl.lib without the version suffix,
# sycl_runtime_version needs to be hardcoded and uplifted when SYCL runtime version uplifts.
# TODO: remove this when sycl.lib is supported on Windows
if(WIN32)
set(sycl_runtime_version 7)
find_library(
SYCL_LIBRARY
NAMES "sycl${sycl_runtime_version}"
HINTS ${SYCL_LIBRARY_DIR}
NO_DEFAULT_PATH
)
if(SYCL_LIBRARY STREQUAL "SYCL_LIBRARY-NOTFOUND")
message(FATAL_ERROR "Cannot find a SYCL library on Windows")
endif()
endif()
find_library(
OCL_LIBRARY
NAMES OpenCL
HINTS ${SYCL_LIBRARY_DIR}
NO_DEFAULT_PATH
)
if((NOT SYCL_INCLUDE_DIR) OR (NOT SYCL_LIBRARY_DIR) OR (NOT SYCL_LIBRARY))
set(SYCL_FOUND False)
set(SYCL_REASON_FAILURE "SYCL library is incomplete!!")
set(SYCL_NOT_FOUND_MESSAGE "${SYCL_REASON_FAILURE}")
return()
endif()
find_package_handle_standard_args(
SYCL
FOUND_VAR SYCL_FOUND
REQUIRED_VARS SYCL_INCLUDE_DIR SYCL_LIBRARY_DIR SYCL_LIBRARY
REASON_FAILURE_MESSAGE "${SYCL_REASON_FAILURE}")
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