From 326945329edc87049d9300bb3ef93bf4df836d5c Mon Sep 17 00:00:00 2001
From: Martin Whitaker <icarus@martin-whitaker.me.uk>
Date: Fri, 2 Aug 2019 15:45:20 +0100
Subject: [PATCH] Add note that bison 2.3 is known to generate bad code
 (br1028).

---
 README.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.txt b/README.txt
index cbc660666..d19570cfb 100644
--- a/README.txt
+++ b/README.txt
@@ -46,6 +46,8 @@ on a UNIX-like system:
 	  to work. MSVC++ 5 and 6 are known to definitely *not* work.
 
 	- bison and flex
+          It has been reported that bison 2.3 on MacOS generates broken
+          code, but bison 3.0.4 works.
 
 	- gperf 3.0 or later
 	  The lexical analyzer doesn't recognize keywords directly,