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cmake_minimum_required(VERSION 3.4.3)
if(CMAKE_COMPILER_IS_GNUCXX)
if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.8)
message(FATAL_ERROR "host compiler - gcc version must be > 4.8")
endif()
elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
if (${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 3.6)
message(FATAL_ERROR "host compiler - clang version must be > 3.6")
endif()
endif()
if(MSVC)
set(ComputeCpp_STL_CHECK_SRC __STL_check)
file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/${ComputeCpp_STL_CHECK_SRC}.cpp
"#include <ios>\n"
"int main() { return 0; }\n")
execute_process(
COMMAND ${ComputeCpp_DEVICE_COMPILER_EXECUTABLE}
${COMPUTECPP_DEVICE_COMPILER_FLAGS}
-isystem ${ComputeCpp_INCLUDE_DIRS}
-o ${ComputeCpp_STL_CHECK_SRC}.sycl
-c ${ComputeCpp_STL_CHECK_SRC}.cpp
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
RESULT_VARIABLE ComputeCpp_STL_CHECK_RESULT
ERROR_QUIET
OUTPUT_QUIET)
if(NOT ${ComputeCpp_STL_CHECK_RESULT} EQUAL 0)
# Try disabling compiler version checks
execute_process(
COMMAND ${ComputeCpp_DEVICE_COMPILER_EXECUTABLE}
${COMPUTECPP_DEVICE_COMPILER_FLAGS}
-D_ALLOW_COMPILER_AND_STL_VERSION_MISMATCH
-isystem ${ComputeCpp_INCLUDE_DIRS}
-o ${ComputeCpp_STL_CHECK_SRC}.cpp.sycl
-c ${ComputeCpp_STL_CHECK_SRC}.cpp
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
RESULT_VARIABLE ComputeCpp_STL_CHECK_RESULT
ERROR_QUIET
OUTPUT_QUIET)
if(NOT ${ComputeCpp_STL_CHECK_RESULT} EQUAL 0)
message(STATUS "Device compiler cannot consume hosted STL headers. Using any parts of the STL will likely result in device compiler errors.")
else()
message(STATUS "Device compiler does not meet certain STL version requirements. Disabling version checks and hoping for the best.")
list(APPEND COMPUTECPP_DEVICE_COMPILER_FLAGS -D_ALLOW_COMPILER_AND_STL_VERSION_MISMATCH)
endif()
endif()
file(REMOVE ${CMAKE_CURRENT_BINARY_DIR}/${ComputeCpp_STL_CHECK_SRC}.cpp
${CMAKE_CURRENT_BINARY_DIR}/${ComputeCpp_STL_CHECK_SRC}.cpp.sycl)
endif(MSVC)
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