CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY /home/conan/w/cci_PR-4320/1/a0a1b225-377e-4e65-808e-3b537be0b9c0/recipes/libnuma/all/test_package/test_package.c:4:3: warning: implicitly declaring library function 'printf' with type 'int (const char *, ...)' [-Wimplicit-function-declaration] printf("numa available: %d\n", numa_available()); ^ /home/conan/w/cci_PR-4320/1/a0a1b225-377e-4e65-808e-3b537be0b9c0/recipes/libnuma/all/test_package/test_package.c:4:3: note: include the header or explicitly provide a declaration for 'printf' 1 warning generated.