foreign.h is not installed

Header file "include/foreign/foreign.h" is not installed in 8.4.0.

Did we forget to add subdir "foreign" to Makefile?

Index: src/include/Makefile
===================================================================
--- src/include/Makefile (8.4.0)
+++ src/include/Makefile (fixed)
@@ -17,7 +17,7 @@


# Subdirectories containing headers for server-side dev
-SUBDIRS = access bootstrap catalog commands executor lib libpq mb \
+SUBDIRS = access bootstrap catalog commands executor foreign lib libpq mb \
nodes optimizer parser postmaster regex rewrite storage tcop \
snowball snowball/libstemmer tsearch tsearch/dicts utils \
port port/win32 port/win32_msvc port/win32_msvc/sys \

Regards,
---
ITAGAKI Takahiro
NTT Open Source Software Center