Roberto Oliveira authored Nov 07, 2017 and Natanael Copa committed Nov 07, 2017

Patch backported from upstream and it fixes error when calling ncurses API:
tty-ncurses.c:199:13: error: dereferencing pointer to incomplete type 'TERMINAL {aka struct term}'
cur_term->Nttyb.c_cc[VINTR] = CTRL ('g');   /* ^g */

Also add check() function