From 3244d40e8a53a1096c4890bbc3d9221f88c93f31 Mon Sep 17 00:00:00 2001
From: Andrew Kane <andrew@ankane.org>
Date: Wed, 10 May 2023 12:13:15 -0700
Subject: [PATCH] Added note about --preserve-env [skip ci]

---
 README.md | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index c31c3df..e634428 100644
--- a/README.md
+++ b/README.md
@@ -355,7 +355,11 @@ If your machine has multiple Postgres installations, specify the path to [pg_con
 export PG_CONFIG=/Applications/Postgres.app/Contents/Versions/latest/bin/pg_config
 ```
 
-Then re-run the installation instructions (run `make clean` before `make` if needed)
+Then re-run the installation instructions (run `make clean` before `make` if needed). If `sudo` is needed for `make install`, use:
+
+```sh
+sudo --preserve-env=PG_CONFIG make install
+```
 
 ### Missing Header