cmake HAVE_THREAD_LOCAL_STORAGE examples

LiangliangNan/MVStudio 3rd_party/nlopt/CMakeLists.txt :150 

unset (HAVE_THREAD_LOCAL_STORAGE CACHE)

LiangliangNan/MVStudio 3rd_party/nlopt/CMakeLists.txt :151 

check_c_source_compiles("
    ${_THREADLOCAL_KEY} int tls;

    int main(void) {
        return 0;
    }" HAVE_THREAD_LOCAL_STORAGE)

stevengj/nlopt CMakeLists.txt :128 

unset (HAVE_THREAD_LOCAL_STORAGE CACHE)

stevengj/nlopt CMakeLists.txt :129 

check_c_source_compiles("
    ${_THREADLOCAL_KEY} int tls;

    int main(void) {
        return 0;
    }" HAVE_THREAD_LOCAL_STORAGE)