From a87f0b158dd10cf4377f3763c82298e530c81dca Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Thu, 7 May 2020 10:17:38 +0900
Subject: Update `README.md` to address old `bison` problem on macOS.

---
 README.md | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'README.md')

diff --git a/README.md b/README.md
index b11e9412d..a7139fc21 100644
--- a/README.md
+++ b/README.md
@@ -46,6 +46,10 @@ To run the tests, execute the following from the project's root directory.
 
     $ rake test
 
+Note: `bison` bundled with MacOS is too old to compile `mruby`.
+Try `brew install bison` and follow the instuction shown to update
+the `$PATH` to compile `mruby`.
+
 ## Building documentation
 
 There are two sets of documentation in mruby: the mruby API (generated by yard) and C API (Doxygen)
-- 
cgit v1.2.3