From 22574046c90c0662f3aa9b1baea074aff54f92a9 Mon Sep 17 00:00:00 2001
From: Sjors Provoost <sjors@sprovoost.nl>
Date: Mon, 29 Apr 2024 10:33:21 +0200
Subject: [PATCH] doc: add LLVM instruction for macOS < 13

---
 doc/build-osx.md | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/doc/build-osx.md b/doc/build-osx.md
index 5c3dc1ac7f..20c92ab7a4 100644
--- a/doc/build-osx.md
+++ b/doc/build-osx.md
@@ -51,6 +51,20 @@ To install, run the following from your terminal:
 brew install automake libtool boost pkg-config libevent
 ```
 
+For macOS 11 (Big Sur) and 12 (Monterey) you need to install a more recent version of llvm.
+
+``` bash
+brew install llvm
+```
+
+And append the following to the configure commands below:
+
+``` bash
+CC=$(brew --prefix llvm)/bin/clang CXX=$(brew --prefix llvm)/bin/clang++
+```
+
+Try `llvm@17` if compilation fails with the default version of llvm.
+
 ### 4. Clone Bitcoin repository
 
 `git` should already be installed by default on your system.