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

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY


/home/conan/w/cci_PR-3395/.conan/data/proj/6.3.1/_/_/build/900a1908320b7347e16cfb4e2642adea9a413e51/source_subfolder/src/mutex.cpp:106:32: warning: unknown warning group '-Wzero-as-null-pointer-constant', ignored [-Wunknown-pragmas]
#pragma GCC diagnostic ignored "-Wzero-as-null-pointer-constant"
                               ^
1 warning generated.
CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY


/home/conan/w/cci_PR-3395/3/b9bb30fa-99e5-4307-a0f2-0517fb276c12/recipes/proj/all/test_package/test_package.c:39:5: warning: '/*' within block comment [-Wcomment]
    /* coordinates is longitude, latitude, and values are expressed in degrees. */
    ^
1 warning generated.