Abdelrahman Said
37 lines
1.0 KiB
CMake
37 lines
1.0 KiB
CMake
include(CheckCSourceCompiles)
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include(CMakePushCheckState)
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macro(check_tls_support VAR)
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if(NOT DEFINED "${VAR}")
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cmake_push_check_state()
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set(CMAKE_REQUIRED_QUIET 1)
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check_c_source_compiles("
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__thread int tls;
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int main(void) {
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return 0;
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}" HAVE_GCC_TLS)
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if(HAVE_GCC_TLS)
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message(STATUS "Thread-local storage: supported (__thread)")
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set(${VAR} "__thread" CACHE INTERNAL "Thread-local storage support keyword in compiler")
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else()
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check_c_source_compiles("
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__declspec(thread) int tls;
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int main(void) {
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return 0;
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}" HAVE_MSVC_TLS)
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if(HAVE_MSVC_TLS)
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message(STATUS "Thread-local storage: supported (__declspec(thread))")
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set(${VAR} "__declspec(thread)" CACHE INTERNAL "Thread-local storage keyword in compiler")
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else()
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message(STATUS "Thread-local storage: not supported")
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set(${VAR} "" CACHE INTERNAL "Thread-local storage keyword in compiler")
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endif()
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endif()
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cmake_pop_check_state()
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endif()
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endmacro()
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