make 4.1: fix segfault when ttyname fails

make 4.1: fix segfault when ttyname fails

GNU make segfaults when run in a chroot environment because
of a known bug in GNU make 4.1. See [1] for details.

Works if /dev/pts is mounted before chroot.

[1] http://savannah.gnu.org/bugs/?43434

[YOCTO #9067]

Reported-by: Alexander Larsson <alexl@redhat.com>
(From OE-Core master rev: 0fe2a4b428b1b9a937914d87ec089b5a64f641eb)

Signed-off-by: Anuj Mittal <anujx.mittal@intel.com>
Signed-off-by: Chang Rebecca Swee Fun <rebecca.swee.fun.chang@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Robert Yang <liezhi.yang@windriver.com>