_error->Errno("unlockpt", "Unlocking the slave of master fd %d failed!", d->master);
else
{
-#ifdef HAVE_PTS_NAME_R
+#ifdef HAVE_PTSNAME_R
char slave_name[64]; // 64 is used by bionic
if (ptsname_r(d->master, slave_name, sizeof(slave_name)) != 0)
#else