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set(CMake_C11_THREAD_LOCAL_BROKEN 0)
if(CMAKE_CXX_COMPILER_ID MATCHES "GNU" AND CMAKE_C11_STANDARD_COMPILE_OPTION)
if(NOT DEFINED CMake_C11_THREAD_LOCAL_WORKS)
message(STATUS "Checking if compiler supports C11 _Thread_local")
try_compile(CMake_C11_THREAD_LOCAL_WORKS
${CMAKE_CURRENT_BINARY_DIR}
${CMAKE_CURRENT_LIST_DIR}/cm_c11_thread_local.c
CMAKE_FLAGS -DCMAKE_C_STANDARD=11
OUTPUT_VARIABLE OUTPUT
)
if(CMake_C11_THREAD_LOCAL_WORKS AND "${OUTPUT}" MATCHES "error: expected '=', ',', ';', 'asm' or '__attribute__' before 'int'")
set_property(CACHE CMake_C11_THREAD_LOCAL_WORKS PROPERTY VALUE 0)
endif()
if(CMake_C11_THREAD_LOCAL_WORKS)
message(STATUS "Checking if compiler supports C11 _Thread_local - yes")
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
"Determining if compiler supports C11 _Thread_local passed with the following output:\n"
"${OUTPUT}\n"
"\n"
)
else()
message(STATUS "Checking if compiler supports C11 _Thread_local - no")
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
"Determining if compiler supports C11 _Thread_local failed with the following output:\n"
"${OUTPUT}\n"
"\n"
)
endif()
endif()
if(NOT CMake_C11_THREAD_LOCAL_WORKS)
set(CMake_C11_THREAD_LOCAL_BROKEN 1)
endif()
endif()
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