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/4a9a95d5ce07c3e6fa81dd35da03fa2c885596c7/source_subfolder/alc/backends/alsa.cpp:54:
In file included from /home/conan/w/cci_PR-3658/.conan/data/libalsa/1.2.4/_/_/package/bf96825ec6234d943fc5693aae8441e05e09b13d/include/alsa/asoundlib.h:54:
/home/conan/w/cci_PR-3658/.conan/data/libalsa/1.2.4/_/_/package/bf96825ec6234d943fc5693aae8441e05e09b13d/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/4a9a95d5ce07c3e6fa81dd35da03fa2c885596c7/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