https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78172
--- Comment #9 from Ian Lance Taylor <ian at airs dot com> --- Regarding arpcom, the syscall package is not really intended to include everything that seems useful. That is the goal of the external package golang.org/x/sys/unix. The syscall package only includes everything needed by the standard library, and some functions and types that were there historically and are now hard to remove.
