Patch #479898: Use multibyte C library for printing strings if available.
diff --git a/configure.in b/configure.in
index d752434..80c4e54 100644
--- a/configure.in
+++ b/configure.in
@@ -1679,8 +1679,8 @@
 AC_CHECK_FUNCS(alarm chown chroot clock confstr ctermid ctermid_r execv \
  fchdir flock fork fsync fdatasync fpathconf ftime ftruncate \
  gai_strerror getgroups getlogin getpeername getpgid getpid getpwent getwd \
- hstrerror inet_pton kill killpg lchown link lstat mkfifo mknod mktime \
- mremap nice pathconf pause plock poll pthread_init \
+ hstrerror inet_pton iswprint kill killpg lchown link lstat mbtowc mkfifo \
+ mknod mktime mremap nice pathconf pause plock poll pthread_init \
  putenv readlink \
  select setegid seteuid setgid setgroups \
  setlocale setregid setreuid setsid setpgid setuid setvbuf snprintf \