From 8ced6628729c5ba041f3394fe7ae86c080f4d9a8 Mon Sep 17 00:00:00 2001
From: Alex Groce <agroce@gmail.com>
Date: Sun, 6 Jan 2019 16:35:06 -0700
Subject: [PATCH] mention loud option

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

diff --git a/README.md b/README.md
index 5d11805..f80361e 100644
--- a/README.md
+++ b/README.md
@@ -328,6 +328,10 @@ CC=/usr/local/opt/llvm\@6/bin/clang CXX=/usr/local/opt/llvm\@6/bin/clang++ BUILD
 make install
 ```
 
+On mac OS, libFuzzer's normal output is not visible.  On any platform,
+you can see more about what DeepState under libFuzzer is doing by
+setting the `LIBFUZZER_LOUD` environment variable.
+
 Other ways of getting an appropriate LLVM may also work.
 
 ## Test case reduction