Back out #479898.
diff --git a/configure.in b/configure.in
index 94a0d1f..21fc77c 100644
--- a/configure.in
+++ b/configure.in
@@ -618,7 +618,7 @@
signal.h stdarg.h stddef.h stdlib.h thread.h unistd.h utime.h termios.h \
sys/audioio.h sys/file.h sys/lock.h sys/mkdev.h sys/modem.h \
sys/param.h sys/poll.h sys/select.h sys/socket.h sys/time.h sys/times.h \
-sys/un.h sys/utsname.h sys/wait.h pty.h term.h wctype.h libutil.h \
+sys/un.h sys/utsname.h sys/wait.h pty.h term.h libutil.h \
sys/resource.h netpacket/packet.h)
AC_HEADER_DIRENT
AC_HEADER_MAJOR
@@ -1680,8 +1680,8 @@
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 iswprint kill killpg lchown link lstat mbtowc mkfifo \
- mknod mktime mremap nice pathconf pause plock poll pthread_init \
+ hstrerror inet_pton kill killpg lchown link lstat 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 \