commit 1bd65c89248e464ad679fff8b1e488d52b4306ce
Author: sezero <sezero@users.sourceforge.net>
Date:   Sat Mar 11 11:20:20 2017 +0300

    Revert "check for tcgetpgrp() presence before using."
    
    This reverts commit c12d5be929d4c1c2826d678eda44e1f0ce6d37d6.
    It shouldn't be needed after commit 870adc5
