From 87158154ada5e094f8aa65773522723134348b0e Mon Sep 17 00:00:00 2001
From: Steve Oswald <82703776+stepeos@users.noreply.github.com>
Date: Sun, 1 Oct 2023 22:32:26 +0200
Subject: [PATCH] Update INSTALL.md

correct usage of march native compile option
---
 INSTALL.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/INSTALL.md b/INSTALL.md
index f148e37184..10bee196c0 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -182,7 +182,7 @@ Here are some tips to get the best possible performance out of GTSAM.
     optimization by 30-50%. Please note that this may not be true for very small 
     problems where the overhead of dispatching work to multiple threads outweighs
     the benefit. We recommend that you benchmark your problem with/without TBB.
-3. Add `-march=native` to `GTSAM_CMAKE_CXX_FLAGS`. A performance gain of
+3. Use `GTSAM_BUILD_WITH_MARCH_NATIVE`. A performance gain of
     25-30% can be expected on modern processors. Note that this affects the portability
     of your executable. It may not run when copied to another system with older/different
     processor architecture.