From ebcb9a21035df76bfa638bd171af3d7061ac8e12 Mon Sep 17 00:00:00 2001
From: Michael Vines <mvines@gmail.com>
Date: Mon, 29 Oct 2018 08:57:49 -0700
Subject: [PATCH] Add llvm install info

---
 programs/bpf/c/README.md | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/programs/bpf/c/README.md b/programs/bpf/c/README.md
index e4ec119b1..08a691ac2 100644
--- a/programs/bpf/c/README.md
+++ b/programs/bpf/c/README.md
@@ -1 +1,18 @@
-Place holder, will hold instructions on how to setup and build C-based BPF programs
+
+## Prerequisites
+
+### Linux Ubuntu
+
+The following link describes how to install llvm:
+  https://blog.kowalczyk.info/article/k/how-to-install-latest-clang-6.0-on-ubuntu-16.04-xenial-wsl.html
+
+### macOS
+
+Ensure the latest llvm is installed:
+```
+$ brew update        # <- ensure your brew is up to date
+$ brew list llvm     # <- should see "llvm: stable 7.0.0 (bottled), HEAD [keg-only]"
+$ brew install llvm
+$ brew --prefix llvm # <- should output "/usr/local/opt/llvm"
+```
+