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+++ This bug was initially created as a clone of Bug #1741515 +++

This file should compile without warnings using -O2 -Wall, using GCC 9 (or later):

#include <string.h>
#include <utmp.h>
#include <utmpx.h>

void
write_utmp (struct utmp *p, const char *data)
{
  strncpy (p->ut_line, data, sizeof (p->ut_line));
  strncpy (p->ut_id, data, sizeof (p->ut_id));
  strncpy (p->ut_user, data, sizeof (p->ut_user));
  strncpy (p->ut_host, data, sizeof (p->ut_host));
}

void
write_utmpx (struct utmpx *p, const char *data)
{
  strncpy (p->ut_line, data, sizeof (p->ut_line));
  strncpy (p->ut_id, data, sizeof (p->ut_id));
  strncpy (p->ut_user, data, sizeof (p->ut_user));
  strncpy (p->ut_host, data, sizeof (p->ut_host));
}

Since the suppression of warnings in system headers is not effective here, I think we should backport the upstream fixes to support GCC Toolset 9 and later.

The fix for this issue will naturally be part of bug 1749439.

*** This bug has been marked as a duplicate of bug 1749439 ***