[llvm] [CI] Fix Monolithic Linux Build in Ubuntu 24.04 (PR #133628)

[Aiden Grossman via llvm-commits]

https://github.com/boomanaiden154 created https://github.com/llvm/llvm-project/pull/133628

This patch fixes the monolithic linux build in Ubuntu 24.04. Newer versions of debian/ubuntu pass a warning when installing packages at the system level using pip as it interferes with system package manager installed python packages. We do not use any, so we just ignore the warning (that is an error without passing the flag) by passing the --break-system-packages flag.

>From 7e992e1118b174a0c6f708db748622e2f1d4fe7b Mon Sep 17 00:00:00 2001
From: Aiden Grossman <aidengrossman at google.com>
Date: Sun, 30 Mar 2025 08:17:31 +0000
Subject: [PATCH] [CI] Fix Monolithic Linux Build in Ubuntu 24.04

This patch fixes the monolithic linux build in Ubuntu 24.04. Newer
versions of debian/ubuntu pass a warning when installing packages at the
system level using pip as it interferes with system package manager
installed python packages. We do not use any, so we just ignore the
warning (that is an error without passing the flag) by passing the
--break-system-packages flag.
---
 .ci/monolithic-linux.sh | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/.ci/monolithic-linux.sh b/.ci/monolithic-linux.sh
index 4b6e56b4a4eda..ec7a85bc5f15f 100755
--- a/.ci/monolithic-linux.sh
+++ b/.ci/monolithic-linux.sh
@@ -53,9 +53,9 @@ targets="${2}"
 lit_args="-v --xunit-xml-output ${BUILD_DIR}/test-results.xml --use-unique-output-file-name --timeout=1200 --time-tests"
 
 echo "--- cmake"
-pip install -q -r "${MONOREPO_ROOT}"/mlir/python/requirements.txt
-pip install -q -r "${MONOREPO_ROOT}"/lldb/test/requirements.txt
-pip install -q -r "${MONOREPO_ROOT}"/.ci/requirements.txt
+pip install --break-system-packages -q -r "${MONOREPO_ROOT}"/mlir/python/requirements.txt
+pip install --break-system-packages -q -r "${MONOREPO_ROOT}"/lldb/test/requirements.txt
+pip install --break-system-packages -q -r "${MONOREPO_ROOT}"/.ci/requirements.txt
 cmake -S "${MONOREPO_ROOT}"/llvm -B "${BUILD_DIR}" \
       -D LLVM_ENABLE_PROJECTS="${projects}" \
       -G Ninja \