From 5010db4ef4a0d72fe5b563dcb679f572b94b1516 Mon Sep 17 00:00:00 2001
From: Jason Paryani <github@jparyani.com>
Date: Fri, 20 Feb 2015 17:20:35 -0800
Subject: [PATCH] Add note for binary build instructions

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

diff --git a/README.md b/README.md
index 125d7a0..8cc915e 100644
--- a/README.md
+++ b/README.md
@@ -47,6 +47,10 @@ Building a Python wheel distributiion:
 
     python setup.py bdist_wheel --disable-cython
 
+If it fails with an error like `clang: error: no such file or directory: 'capnp/lib/capnp.cpp'`, then you need to cythonize fist. This can be done with:
+
+    python setup.py build --force-cython
+
 ## Python Versions
 
 Python 2.6/2.7 are supported as well as Python 3.2+. PyPy 2.1+ is also supported.