Index: Wnn/man/3.libwnn/js_lib/Imakefile
--- Wnn/man/3.libwnn/js_lib/Imakefile.orig
+++ Wnn/man/3.libwnn/js_lib/Imakefile
@@ -4,6 +4,14 @@ XCOMM
 MANDIR = $(LIBMANDIR)
 MANSUFFIX = $(LIBMANSUFFIX)
 
+MANDIR = $(MANPATH)/ja/man$(MANSUFFIX)
+#undef InstallManPage
+#define InstallManPage InstallJManPage
+#undef InstallManPageLong
+#define InstallManPageLong InstallJManPageLong
+#undef InstallManPageAliases
+#define InstallManPageAliases InstallJManPageAliases
+
 all::
 
 depend::
