CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY CMAKE_INSTALL_BINDIR CMAKE_INSTALL_DATAROOTDIR CMAKE_INSTALL_INCLUDEDIR CMAKE_INSTALL_LIBEXECDIR CMAKE_INSTALL_OLDINCLUDEDIR CMAKE_INSTALL_SBINDIR warning: unknown warning option '-Wmisleading-indentation'; did you mean '-Wbinding-in-condition'? [-Wunknown-warning-option] warning: unknown warning option '-Wmisleading-indentation'; did you mean '-Wbinding-in-condition'? [-Wunknown-warning-option] warning: unknown warning option '-Wmisleading-indentation'; did you mean '-Wbinding-in-condition'? [-Wunknown-warning-option] warning: unknown warning option '-Wduplicated-cond'; did you mean '-Wduplicate-enum'? [-Wunknown-warning-option] warning: unknown warning option '-Wduplicated-cond'; did you mean '-Wduplicate-enum'? [-Wunknown-warning-option] warning: unknown warning option '-Wduplicated-cond'; did you mean '-Wduplicate-enum'? [-Wunknown-warning-option] warning: unknown warning option '-Wduplicated-branches' [-Wunknown-warning-option] warning: unknown warning option '-Wduplicated-branches' [-Wunknown-warning-option] warning: unknown warning option '-Wduplicated-branches' [-Wunknown-warning-option] warning: unknown warning option '-Wlogical-op'; did you mean '-Wlong-long'? [-Wunknown-warning-option] warning: unknown warning option '-Wlogical-op'; did you mean '-Wlong-long'? [-Wunknown-warning-option] warning: unknown warning option '-Wlogical-op'; did you mean '-Wlong-long'? [-Wunknown-warning-option] warning: unknown warning option '-Wuseless-cast' [-Wunknown-warning-option] warning: unknown warning option '-Wuseless-cast' [-Wunknown-warning-option] warning: unknown warning option '-Wuseless-cast' [-Wunknown-warning-option] warning: unknown warning option '-Wmisleading-indentation'; did you mean '-Wbinding-in-condition'? [-Wunknown-warning-option] warning: unknown warning option '-Wduplicated-cond'; did you mean '-Wduplicate-enum'? [-Wunknown-warning-option] warning: unknown warning option '-Wduplicated-branches' [-Wunknown-warning-option] warning: unknown warning option '-Wlogical-op'; did you mean '-Wlong-long'? [-Wunknown-warning-option] warning: unknown warning option '-Wuseless-cast' [-Wunknown-warning-option] /Users/jenkins/w/cci_PR-3249/.conan/data/args/0.12.1/_/_/build/eec6acc43f6348a597c20e5bd28d9e0590a02597/source_subfolder/src/printer.cpp:34:7: error: use of undeclared identifier 'errno' if (errno != EINTR) return 0;  ^ /Users/jenkins/w/cci_PR-3249/.conan/data/args/0.12.1/_/_/build/eec6acc43f6348a597c20e5bd28d9e0590a02597/source_subfolder/src/printer.cpp:34:16: error: use of undeclared identifier 'EINTR' if (errno != EINTR) return 0;  ^ 5 warnings and 2 errors generated. make[2]: *** [CMakeFiles/args.dir/src/printer.cpp.o] Error 1 make[2]: *** Waiting for unfinished jobs.... 5 warnings generated. 5 warnings generated. clang: error: unable to execute command: Terminated: 15 clang: error: clang frontend command failed due to signal (use -v to see invocation) Apple clang version 11.0.0 (clang-1100.0.33.8) Target: x86_64-apple-darwin18.7.0 Thread model: posix InstalledDir: /Applications/Xcode-11.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin clang: note: diagnostic msg: PLEASE submit a bug report to http://developer.apple.com/bugreporter/ and include the crash backtrace, preprocessed source, and associated run script. make[2]: *** [CMakeFiles/args.dir/src/parser.cpp.o] Terminated: 15 make[1]: *** [CMakeFiles/args.dir/all] Terminated: 15 make: *** [all] Terminated: 15 args/0.12.1: WARN: Build folder is dirty, removing it: /Users/jenkins/w/cci_PR-3249/.conan/data/args/0.12.1/_/_/build/eec6acc43f6348a597c20e5bd28d9e0590a02597 ERROR: Exiting with code: 5