sethostname      2000 lib/unistd.in.h _GL_FUNCDECL_SYS (sethostname, int, (const char *name, size_t len)
sethostname      2006 lib/unistd.in.h _GL_CXXALIAS_SYS_CAST (sethostname, int, (const char *name, size_t len));
sethostname      2007 lib/unistd.in.h _GL_CXXALIASWARN (sethostname);
sethostname      2011 lib/unistd.in.h _GL_WARN_ON_USE (sethostname, "sethostname is unportable - "