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 '-Wduplicated-cond'; did you mean '-Wduplicate-enum'? [-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 '-Wmisleading-indentation'; did you mean '-Wbinding-in-condition'? [-Wunknown-warning-option] warning: unknown warning option '-Wuseless-cast' [-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] warning: unknown warning option '-Wduplicated-cond'; did you mean '-Wduplicate-enum'? [-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 '-Wduplicated-branches' [-Wunknown-warning-option] warning: unknown warning option '-Wuseless-cast' [-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] 5 warnings generated. /Users/jenkins/w/cci_PR-3249@2/.conan/data/args/0.12.1/_/_/build/180c83b442b8b30fb19151eca5509796e51d441b/source_subfolder/src/printer.cpp:34:7: error: use of undeclared identifier 'errno' if (errno != EINTR) return 0;  ^ /Users/jenkins/w/cci_PR-3249@2/.conan/data/args/0.12.1/_/_/build/180c83b442b8b30fb19151eca5509796e51d441b/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.... clang: error: unable to execute command: Terminated: 15 clang: error: clang frontend command failed due to signal (use -v to see invocation) Apple LLVM version 10.0.1 (clang-1001.0.46.3) Target: x86_64-apple-darwin18.2.0 Thread model: posix InstalledDir: /Library/Developer/CommandLineTools/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@2/.conan/data/args/0.12.1/_/_/build/180c83b442b8b30fb19151eca5509796e51d441b ERROR: Exiting with code: 5