_isatty           151 maint/gnulib/lib/isatty.c       result = _isatty (fd);
_isatty           162 maint/gnulib/lib/isatty.c # define _isatty_nothrow _isatty
_isatty          1530 maint/gnulib/lib/unistd.in.h #   define isatty _isatty
_isatty          1550 maint/gnulib/lib/unistd.in.h #   define isatty _isatty
_isatty           221 maint/gnulib/tests/test-execute-child.c         return 4 + 2 * (_isatty (10) != 0) + (_isatty (11) != 0);
_isatty           427 maint/gnulib/tests/test-execute-main.c         ASSERT (ret == 4 + 2 * (_isatty (10) != 0) + (_isatty (11) != 0));
_isatty           451 maint/gnulib/tests/test-execute-main.c         ASSERT (ret == 4 + 2 * (_isatty (10) != 0) + (_isatty (11) != 0));