From 0373fd7d10fb5b23c86ebec2e932ea8f059f5b71 Mon Sep 17 00:00:00 2001
From: Martin Nowack <m.nowack@imperial.ac.uk>
Date: Fri, 25 Mar 2022 23:07:40 +0000
Subject: Clearly separate between LLVM, a bitcode compiler, and sanitizer
 compiler

All three can be different but also provided by the same package.
By separating the different use-cases, it allows to set them
independently.
---
 scripts/build/p-clang-linux-ubuntu.inc | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

(limited to 'scripts/build/p-clang-linux-ubuntu.inc')

diff --git a/scripts/build/p-clang-linux-ubuntu.inc b/scripts/build/p-clang-linux-ubuntu.inc
index 736cc097..9dac1352 100644
--- a/scripts/build/p-clang-linux-ubuntu.inc
+++ b/scripts/build/p-clang-linux-ubuntu.inc
@@ -16,18 +16,21 @@ install_binary_artifact_clang() {
     lsb-release
     gnupg
   )
-
   with_sudo apt -y --no-install-recommends install "${dependencies[@]}"
-  wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key| with_sudo apt-key add -
 
-  # Add repository
+  # Add LLVM upstream repository if available
   codename="$(lsb_release --codename --short)"
-  apt_entry="deb http://apt.llvm.org/${codename}/ llvm-toolchain-${codename}${version} main"
-  if [[ ! $(grep -rq "${apt_entry}" /etc/apt) ]]; then
-    echo "${apt_entry}" | with_sudo tee -a /etc/apt/sources.list
-    with_sudo apt update -y
+  if wget -q "https://apt.llvm.org/${codename}/dists/llvm-toolchain-${codename}${version}/"; then
+    wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key| with_sudo apt-key add -
+
+    apt_entry="deb http://apt.llvm.org/${codename}/ llvm-toolchain-${codename}${version} main"
+    if ! grep -rq "${apt_entry}" /etc/apt; then
+      echo "${apt_entry}" | with_sudo tee -a /etc/apt/sources.list
+      with_sudo apt update -y
+    fi
   fi
 
+
   with_sudo apt update -y
   dependencies=(
     "llvm${version}"
-- 
cgit 1.4.1