From 872d386a87799a9f5ae1a802759b98ac943d2161 Mon Sep 17 00:00:00 2001
From: Derek Mauro <dmauro@google.com>
Date: Wed, 4 Feb 2026 10:23:22 -0800
Subject: [PATCH] Upgrade CI to XCode 26.2

The new build environment (Sequoia) does not have CMake
pre-installed, so install it, and set the variables necessary
for parallel builds.

PiperOrigin-RevId: 865468933
Change-Id: I0316281d0065bc52b653258556a6928faacb7c0e
---
 ci/macos-presubmit.sh | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/ci/macos-presubmit.sh b/ci/macos-presubmit.sh
index 5fac6ae9..408f8f86 100644
--- a/ci/macos-presubmit.sh
+++ b/ci/macos-presubmit.sh
@@ -31,8 +31,13 @@
 
 set -euox pipefail
 
-# Use Xcode 16.0
-sudo xcode-select -s /Applications/Xcode_16.0.app/Contents/Developer
+# Use Xcode 26.2
+sudo xcode-select -s /Applications/Xcode_26.2.app/Contents/Developer
+
+brew install cmake
+
+export CMAKE_BUILD_PARALLEL_LEVEL=$(sysctl -n hw.ncpu)
+export CTEST_PARALLEL_LEVEL=$(sysctl -n hw.ncpu)
 
 if [[ -z ${GTEST_ROOT:-} ]]; then
   GTEST_ROOT="$(realpath $(dirname ${0})/..)"