In file included from /usr/include/errno.h:28,
                 from /usr/include/c++/10.2.0/cerrno:42,
                 from /usr/include/c++/10.2.0/ext/string_conversions.h:44,
                 from /usr/include/c++/10.2.0/bits/basic_string.h:6535,
                 from /usr/include/c++/10.2.0/string:55,
                 from /usr/include/c++/10.2.0/bits/locale_classes.h:40,
                 from /usr/include/c++/10.2.0/bits/ios_base.h:41,
                 from /usr/include/c++/10.2.0/ios:42,
                 from /usr/include/c++/10.2.0/ostream:38,
                 from /usr/include/c++/10.2.0/iostream:39,
                 from test.cpp:1:
/usr/include/bits/errno.h:26:11: fatal error: linux/errno.h: No such file or directory
   26 | # include <linux/errno.h>
      |           ^~~~~~~~~~~~~~~
compilation terminated.