ferror_unlocked   107 maint/gnulib/lib/argp-namefrob.h      && !defined ferror_unlocked)
ferror_unlocked    50 maint/gnulib/lib/unlocked-io.h # if HAVE_DECL_FERROR_UNLOCKED || defined ferror_unlocked
ferror_unlocked    52 maint/gnulib/lib/unlocked-io.h #  define ferror(x) ferror_unlocked (x)