cmake HAVE_NESTED_FUNCTIONS examples

AVSystem/Anjay CMakeLists.txt :297

try_compile(HAVE_NESTED_FUNCTIONS
            "${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/CMakeTmp"
            "${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/CMakeTmp/nested_funcs.c")

AVSystem/Anjay CMakeLists.txt :306

cmake_dependent_option(WITH_NESTED_FUNCTION_MUTEX_LOCKS
                       "Enable mutex locking variant based on nested functions (provides more compiler warnings)"
                       "${WITH_NESTED_FUNCTION_MUTEX_LOCKS_DEFAULT}" "WITH_THREAD_SAFETY;HAVE_NESTED_FUNCTIONS;AVS_COMMONS_HAVE_PRAGMA_DIAGNOSTIC" OFF)