AC_CHECK_DECLS([clearerr_unlocked, feof_unlocked, ferror_unlocked,
fflush_unlocked, fputc_unlocked, fread_unlocked, fwrite_unlocked,
getc_unlocked, getchar_unlocked, putc_unlocked, putchar_unlocked])
AC_CHECK_DECLS([clearerr_unlocked, feof_unlocked, ferror_unlocked,
fflush_unlocked, fputc_unlocked, fread_unlocked, fwrite_unlocked,
getc_unlocked, getchar_unlocked, putc_unlocked, putchar_unlocked])