From b6b0abefbff6b940e84c69e7b6c57fda62832647 Mon Sep 17 00:00:00 2001
From: Giovanni Cappellotto <potomak84@gmail.com>
Date: Sat, 8 Oct 2022 10:19:16 -0400
Subject: [PATCH] Add step to initialize and fetch submodules

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

diff --git a/README.md b/README.md
index d01761a..944c6e2 100644
--- a/README.md
+++ b/README.md
@@ -24,6 +24,11 @@ is in the public domain.
 
 ## Building
 
+First initialize and fetch submodules:
+
+    git submodule init
+    git submodule update
+
 Compiling requires cmake, ragel, lemon, and a recent version of clang++ with 
 c++11 support.  It has only been built and tested with OS X 10.8+.