GNULIB_FREOPEN_SAFER  155 maint/gnulib/lib/error.c # if GNULIB_FREOPEN_SAFER
GNULIB_FREOPEN_SAFER   28 maint/gnulib/lib/stdio--.h #if GNULIB_FREOPEN_SAFER
GNULIB_FREOPEN_SAFER   27 maint/gnulib/lib/stdio-safer.h #if GNULIB_FREOPEN_SAFER