From af21659c8c5c1d16b9bc5e745aaaf49b322f64d7 Mon Sep 17 00:00:00 2001
From: Mark de Wever <koraq@xs4all.nl>
Date: Tue, 12 Mar 2024 17:28:15 +0100
Subject: [libc++][CI] Installs tzdata package in Docker. (#84643)

This allows testing the time zone information in the CI. This is needed
to let https://github.com/llvm/llvm-project/pull/82108 pass the CI.
---
 libcxx/utils/ci/Dockerfile | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/libcxx/utils/ci/Dockerfile b/libcxx/utils/ci/Dockerfile
index 225de93..178cba4 100644
--- a/libcxx/utils/ci/Dockerfile
+++ b/libcxx/utils/ci/Dockerfile
@@ -65,6 +65,12 @@ RUN <<EOF
   echo "ALL ALL = (ALL) NOPASSWD: ALL" | tee /etc/sudoers || true
 EOF
 
+# Installing tzdata before other packages avoids the time zone prompts.
+# These prompts seem to ignore DEBIAN_FRONTEND=noninteractive.
+RUN sudo apt-get update \
+    && sudo apt-get install -y \
+        tzdata
+
 RUN sudo apt-get update \
     && sudo apt-get install -y \
         python3 \
-- 
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