diff --git a/honoka-plugins/ascii/configure.ac b/honoka-plugins/ascii/configure.ac
index 8b07679..646a1b2 100644
--- a/honoka-plugins/ascii/configure.ac
+++ b/honoka-plugins/ascii/configure.ac
@@ -77,42 +77,6 @@
 
 
 
-  BU_LIBS="$LIBS"
-  AC_CHECK_LIB(crypt, crypt)
-  AC_CHECK_LIB(wnn7, jl_yosoku_init,[
-    WNN_LIBS="-lcrypt -lwnn7"
-  ], [AC_MSG_RESULT(libwnn7 not found.)])
-  if echo $WNN_LIBS | grep -v "wnn7" > /dev/null; then
-    AC_CHECK_LIB(wnn, jl_yosoku_init,[
-      WNN_LIBS="-lcrypt -lwnn"
-    ], [AC_MSG_RESULT(libwnn for Wnn7 not found.)])
-  fi
-
-  if echo $WNN_LIBS | grep "wnn" > /dev/null; then
-    AC_DEFINE([HAVE_LIBWNN7],[1],[Wnn7])
-  else
-    AC_CHECK_LIB(wnn6, jl_optimize_fi,[
-      WNN_LIBS="-lcrypt -lwnn6"
-    ], [AC_MSG_RESULT(libwnn6 not found.)])
-    if echo $WNN_LIBS | grep -v "wnn6" > /dev/null; then
-      AC_CHECK_LIB(wnn, jl_optimize_fi,[
-        WNN_LIBS="-lcrypt -lwnn"
-      ], [AC_MSG_RESULT(libwnn for Wnn6 not found.)])
-    fi
-
-    if echo $WNN_LIBS | grep "wnn" > /dev/null; then
-      AC_DEFINE([HAVE_LIBWNN6],[1],[Wnn6])
-    else
-      AC_MSG_ERROR(Wnn6 or Wnn7 library not found.)
-    fi
-  fi
-  if echo $WNN_LIBS | grep "wnn" > /dev/null; then
-    AC_DEFINE([HAVE_LIBWNN],[1],[Wnn])
-  fi
-  LIBS="$LIBS $WNN_LIBS"
-
-
-
 
 SCIM_MODULEDIR=`$PKG_CONFIG --variable=moduledir scim`
 SCIM_DATADIR=`$PKG_CONFIG --variable=scimdatadir scim`