From 0562417587df1feb936f66b2273fd1c3ce835168 Mon Sep 17 00:00:00 2001
From: Sergey Vorontsov <piligrim@rootnix.net>
Date: Thu, 7 Dec 2023 15:24:44 +0300
Subject: [PATCH] Update ubuntu xenial gcc version to 8.2.0

Install GCC version 8.2. This is necessary in order to compile on an old
system with glibc 2.23 using a more modern compiler.
---
 ubuntu/xenial/Dockerfile | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/ubuntu/xenial/Dockerfile b/ubuntu/xenial/Dockerfile
index ac8c4e4..f3c4c64 100644
--- a/ubuntu/xenial/Dockerfile
+++ b/ubuntu/xenial/Dockerfile
@@ -40,5 +40,12 @@ RUN apt-get update && apt-get install -y --force-yes \
     alien \
     dh-systemd
 
+# Install gcc-8
+RUN add-apt-repository ppa:ubuntu-toolchain-r/test -y &&  \
+    apt-get update -y &&  \
+    apt-get install gcc-8 g++-8 -y &&  \
+    update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-8 60 --slave /usr/bin/g++ g++ /usr/bin/g++-8 &&  \
+    update-alternatives --config gcc
+
 # Enable sudo without password
 RUN echo '%adm ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers