From c14449f0a7c7c34db44377da64e239d58b335b47 Mon Sep 17 00:00:00 2001
From: Ian Barwick <ian@2ndquadrant.com>
Date: Mon, 22 May 2017 11:54:33 +0900
Subject: [PATCH] Fix build on PostgreSQL older than the current libpq

Make sure that the includedir_internal directory is used before the
includedir_server, otherwise the build may fail for PostgreSQL
version lower than the libpq version.

Backpatched from downstream:
  https://anonscm.debian.org/cgit/pkg-postgresql/repmgr.git/tree/debian/patches/makefile-libpq-internal.patch

Per GitHub #282
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index a79ccf02..e567ace8 100644
--- a/Makefile
+++ b/Makefile
@@ -10,7 +10,7 @@ repmgr_OBJS = dbutils.o check_dir.o config.o repmgr.o log.o strutil.o dirmod.o c
 DATA = repmgr.sql uninstall_repmgr.sql
 REGRESS = repmgr_funcs repmgr_test
 
-PG_CPPFLAGS = -I$(libpq_srcdir)
+PG_CPPFLAGS = -I$(includedir_internal) -I$(libpq_srcdir)
 PG_LIBS     = $(libpq_pgport)