From c842736006b1ca6f719f2fd2bd07f8edae42f684 Mon Sep 17 00:00:00 2001
From: Peter Eisentraut <peter@eisentraut.org>
Date: Sat, 9 Jul 2022 09:44:09 +0200
Subject: [PATCH] Fix vpath build

---
 src/backend/nodes/Makefile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/backend/nodes/Makefile b/src/backend/nodes/Makefile
index 1a0d5b93140..79ce0a532fe 100644
--- a/src/backend/nodes/Makefile
+++ b/src/backend/nodes/Makefile
@@ -12,6 +12,8 @@ subdir = src/backend/nodes
 top_builddir = ../../..
 include $(top_builddir)/src/Makefile.global
 
+override CPPFLAGS := -I. -I$(srcdir) $(CPPFLAGS)
+
 OBJS = \
 	bitmapset.o \
 	copyfuncs.o \