add portdate
diff --git a/src/lib9/utf/portdate b/src/lib9/utf/portdate
new file mode 100644
index 0000000..1385cf0
--- /dev/null
+++ b/src/lib9/utf/portdate
@@ -0,0 +1,20 @@
+rune.c 2004/1225
+runestrcat.c 2004/1225
+runestrchr.c 2004/1225
+runestrcmp.c 2004/1225
+runestrcpy.c 2004/1225
+runestrdup.c 2004/1225
+runestrecpy.c 2004/1225
+runestrlen.c 2004/1225
+runestrncat.c 2004/1225
+runestrncmp.c 2004/1225
+runestrncpy.c 2004/1225
+runestrrchr.c 2004/1225
+runestrstr.c 2004/1225
+runetype.c 2004/1225
+utfecpy.c 2004/1225
+utflen.c 2004/1225
+utfnlen.c 2004/1225
+utfrrune.c 2004/1225
+utfrune.c 2004/1225
+utfutf.c 2004/1225
