cmake HAS_UNDEFINED_SANITIZER examples

fluent/fluent-bit lib/wasm-micro-runtime-WAMR-2.4.1/tests/fuzz/wasm-mutator-fuzz/CMakeLists.txt :33

check_cxx_compiler_flag("-fsanitize=undefined" HAS_UNDEFINED_SANITIZER)

bytecodealliance/wasm-micro-runtime tests/fuzz/wasm-mutator-fuzz/CMakeLists.txt :33

check_cxx_compiler_flag("-fsanitize=undefined" HAS_UNDEFINED_SANITIZER)