--- configure.ac.orig	2013-05-08 04:51:32.000000000 +0900
+++ configure.ac	2013-05-08 04:51:58.000000000 +0900
@@ -24,6 +24,9 @@
 
 KPSE_KPATHSEA_FLAGS
 
+KPSE_ADD_FLAGS([libpaper])
+CHO_CHECK_LIBPAPER
+
 AC_CONFIG_SUBDIRS([squeeze])
 
 AC_CONFIG_FILES([Makefile])