From c9fec3ee8fb8b16e6009398b6df18a56267ba39b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Storsj=C3=B6?= <martin@martin.st>
Date: Mon, 5 Jul 2021 23:37:05 +0300
Subject: [PATCH] Dockerfile: Add a comment about the manually installed CMake

---
 Dockerfile     | 3 +++
 Dockerfile.dev | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/Dockerfile b/Dockerfile
index a7ac46c..8f07841 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,6 +7,9 @@ RUN apt-get update -qq && apt-get install -qqy --no-install-recommends \
     apt-get clean -y && \
     rm -rf /var/lib/apt/lists/*
 
+# Manually install a newer version of CMake; this is needed since building
+# LLVM requires CMake 3.13.4, while Ubuntu 18.04 ships with 3.10.2. If
+# updating to a newer distribution, this can be dropped.
 RUN cd /opt && \
     wget https://github.com/Kitware/CMake/releases/download/v3.20.1/cmake-3.20.1-Linux-$(uname -m).tar.gz && \
     tar -zxvf cmake-*.tar.gz && \
diff --git a/Dockerfile.dev b/Dockerfile.dev
index 69a4a1c..ac92237 100644
--- a/Dockerfile.dev
+++ b/Dockerfile.dev
@@ -7,6 +7,9 @@ RUN apt-get update -qq && apt-get install -qqy --no-install-recommends \
     apt-get clean -y && \
     rm -rf /var/lib/apt/lists/*
 
+# Manually install a newer version of CMake; this is needed since building
+# LLVM requires CMake 3.13.4, while Ubuntu 18.04 ships with 3.10.2. If
+# updating to a newer distribution, this can be dropped.
 RUN cd /opt && \
     wget https://github.com/Kitware/CMake/releases/download/v3.20.1/cmake-3.20.1-Linux-$(uname -m).tar.gz && \
     tar -zxvf cmake-*.tar.gz && \