From ac1324032855ce082e387b8495dfa4a082d4acf5 Mon Sep 17 00:00:00 2001
From: baldurk <baldurk@baldurk.org>
Date: Fri, 1 Jan 2016 00:31:43 +0100
Subject: [PATCH] Add a note to README.md about how to build the bison grammar

---
 README.md | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/README.md b/README.md
index f56817c78..7a60e280b 100644
--- a/README.md
+++ b/README.md
@@ -47,6 +47,20 @@ CMake: The currently maintained and preferred way of building is through CMake.
 In MSVC, after running CMake, you may need to use the Configuration Manager to
 check the INSTALL project.
 
+The grammar in glslang/MachineIndependent/glslang.y has to be recompiled with
+bison if it changes, the output files are committed to the repo to avoid every
+developer needing to have bison configured to compile the project when grammar
+changes are quite infrequent. For windows you can get binaries from
+[GnuWin32](http://gnuwin32.sourceforge.net/packages/bison.htm).
+
+The command to rebuild is:
+
+```
+bison --defines=MachineIndependent/glslang_tab.cpp.h
+      -t MachineIndependent/glslang.y
+      -o MachineIndependent/glslang_tab.cpp
+```
+
 Programmatic Interfaces
 -----------------------
 
-- 
GitLab