Fix vpath build

diff --git a/src/backend/nodes/Makefile b/src/backend/nodes/Makefile
index 1a0d5b93140337da87922f5c05c16f42369c09c6..79ce0a532fee7df15d698f9f2d313d93eb038947 100644 (file)
--- 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 \