CMake Warning:
  Manually-specified variables were not used by the project:

    ALSOFT_TESTS
    CMAKE_EXPORT_NO_PACKAGE_REGISTRY


In file included from /home/conan/w/cci_PR-3658/.conan/data/openal/1.21.0/_/_/build/304ffcc9c1f613deaf5fae11c05dc846c4313287/source_subfolder/alc/backends/alsa.cpp:54:
In file included from /home/conan/w/cci_PR-3658/.conan/data/libalsa/1.2.4/_/_/package/d7c40dc0b4dc2c9a4940a7d2edb7272c895f12f0/include/alsa/asoundlib.h:54:
/home/conan/w/cci_PR-3658/.conan/data/libalsa/1.2.4/_/_/package/d7c40dc0b4dc2c9a4940a7d2edb7272c895f12f0/include/alsa/pcm.h:610:19: warning: zero size arrays are an extension [-Wzero-length-array]
        unsigned int pos[0];    /**< channel position array */
                         ^
/home/conan/w/cci_PR-3658/.conan/data/openal/1.21.0/_/_/build/304ffcc9c1f613deaf5fae11c05dc846c4313287/source_subfolder/alc/backends/alsa.cpp:385:12: warning: enumeration value 'SND_PCM_STATE_PRIVATE1' not handled in switch [-Wswitch]
    switch(state)
           ^
2 warnings generated.
CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY


openal/1.21.0: WARN: Unknown compiler. Assuming your compiler supports c++11