cmake LIBREMIDI_CXX_HAS_WNO_C99_EXTENSIONS examples

celtera/libremidi cmake/libremidi.deps.cmake :15 

check_cxx_compiler_flag(-Wno-c99-extensions LIBREMIDI_CXX_HAS_WNO_C99_EXTENSIONS)

celtera/libremidi cmake/libremidi.pipewire.cmake :30 

target_compile_options(libremidi
    ${_public}
      $<$<BOOL:${LIBREMIDI_CXX_HAS_WNO_GNU_STATEMENT}>:-Wno-gnu-statement-expression-from-macro-expansion>
      $<$<BOOL:${LIBREMIDI_CXX_HAS_WNO_C99_EXTENSIONS}>:-Wno-c99-extensions>
  )