From a46a0d3a8a2b68a7ab519dda48e242aa3b55c3df Mon Sep 17 00:00:00 2001
From: Damyan Pepper <damyanp@microsoft.com>
Date: Fri, 7 Nov 2025 18:41:59 -0800
Subject: [PATCH] Explicitly install g++-9 on linux images (#7889)

This is no longer included by default on the build images.
---
 azure-pipelines.yml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 9146b4e1db..d38460e4c0 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -115,6 +115,11 @@ stages:
       displayName: 'Installing dependencies'
       condition: eq(variables['image'], variables['linux'])
 
+    - bash: |
+        sudo apt-get install g++-9 -y
+      displayName: 'Installing g++-9'
+      condition: and(eq(variables['CXX'], 'g++-9'), eq(variables['image'], variables['linux']))
+
     - bash: |
         brew update
         brew install ninja