From 3cbabf0f80150208aa5319ea4ceb77da1b62b82d Mon Sep 17 00:00:00 2001
From: Dom <dom@itsallbroken.com>
Date: Fri, 27 Nov 2020 20:32:29 +0000
Subject: [PATCH] docs(README): document clang requirement (#498)

Found while investigating #465 - clang is needed to build the croaring
dependency.
---
 README.md | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/README.md b/README.md
index 51735b6b3b..aeac0766fa 100644
--- a/README.md
+++ b/README.md
@@ -97,6 +97,22 @@ compilation process by calling `flatc` for you.
 [`flatbuffers` package for Arch Linux]: https://www.archlinux.org/packages/community/x86_64/flatbuffers/
 [`flatbuffers` package for Homebrew]: https://github.com/Homebrew/homebrew-core/blob/HEAD/Formula/flatbuffers.rb
 
+### Installing `clang`
+
+An installation of `clang` is required to build the [`croaring`] dependency - if
+it is not already present, it can typically be installed with the system
+package manager.
+
+```shell
+clang --version
+Apple clang version 12.0.0 (clang-1200.0.32.27)
+Target: x86_64-apple-darwin20.1.0
+Thread model: posix
+InstalledDir: /Library/Developer/CommandLineTools/usr/bin
+```
+
+[`croaring`]: https://github.com/saulius/croaring-rs
+
 ### Specifying Configuration
 
 **OPTIONAL:** There are a number of configuration variables you can choose to customize by