From 9ee66ed2dd14bc0ee12a788f41eae64377e7f2b0 Mon Sep 17 00:00:00 2001
From: Anish Palakurthi <85807128+anish-palakurthi@users.noreply.github.com>
Date: Wed, 17 Jul 2024 16:09:08 -0700
Subject: [PATCH] LLVM install and rebuild script (#794)

Added script to shift developer usage of Apple Clang to LLVM Clang, as
Apple Clang does not support all WASM versions of packages. A one-time
script, only for use in development of BAML. Will not affect end user as
binaries are produced.
---
 engine/llvm_install.sh | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 engine/llvm_install.sh

diff --git a/engine/llvm_install.sh b/engine/llvm_install.sh
new file mode 100644
index 000000000..534823e03
--- /dev/null
+++ b/engine/llvm_install.sh
@@ -0,0 +1,31 @@
+#!/bin/bash
+# https://github.com/briansmith/ring/issues/1824#issuecomment-2059955073 -- justification
+# Apple Clang doesn't have comprehensive WASM support, so we need to install LLVM clang and relink Rust to use it via reinstall. This is necessary for a dependency Vertex relies on.
+# Install LLVM
+brew install llvm
+
+# Add LLVM to PATH
+echo 'export PATH="/opt/homebrew/opt/llvm/bin:$PATH"' >> ~/.zshrc
+
+# Reload shell configuration
+source ~/.zshrc
+
+# Check LLVM version
+llvm-config --version
+
+# Uninstall Rust
+rustup self uninstall
+
+# Uninstall Rust via Homebrew (if necessary)
+brew uninstall rust
+
+# Install Rust
+curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
+
+# Add WebAssembly target
+rustup target add wasm32-unknown-unknown
+
+# Add x86_64 macOS target
+rustup target add x86_64-apple-darwin
+
+echo "Setup complete. Please restart your terminal for changes to take effect."
\ No newline at end of file