From 3426905e607dfd885339de450cbcb1cc3f51b78c Mon Sep 17 00:00:00 2001
From: Krystine Sherwin <93062060+KrystalDelusion@users.noreply.github.com>
Date: Tue, 2 Sep 2025 09:48:17 +1200
Subject: [PATCH] CI: Use brew bundle

Also skip `brew update`.
Specify llvm@20 due to problems with clang-21 and macOS .dylib.
---
 .github/actions/setup-build-env/action.yml | 3 +--
 Brewfile                                   | 2 +-
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/.github/actions/setup-build-env/action.yml b/.github/actions/setup-build-env/action.yml
index 059287a63..285601406 100644
--- a/.github/actions/setup-build-env/action.yml
+++ b/.github/actions/setup-build-env/action.yml
@@ -14,8 +14,7 @@ runs:
       if: runner.os == 'macOS'
       shell: bash
       run: |
-        HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK=1 brew update
-        HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK=1 brew install bison flex gawk libffi pkg-config bash autoconf llvm lld || true
+        brew bundle
 
     - name: Linux runtime environment
       if: runner.os == 'Linux'
diff --git a/Brewfile b/Brewfile
index 3696e40b0..a4efff9a2 100644
--- a/Brewfile
+++ b/Brewfile
@@ -10,5 +10,5 @@ brew "tcl-tk"
 brew "xdot"
 brew "bash"
 brew "boost-python3"
-brew "llvm"
+brew "llvm@19"
 brew "lld"