From 08872507f188ee405fc4e2cb8e7939edc4248836 Mon Sep 17 00:00:00 2001
From: Stephan Hageboeck <stephan.hageboeck@cern.ch>
Date: Fri, 13 Mar 2026 11:05:23 +0100
Subject: [PATCH] [CI] Add glibcxx debug mode for the alma9 debug build.

In addition to compile in debug mode with assertions, enable the glibcxx
container bounds checks.

https://gcc.gnu.org/onlinedocs/libstdc++/manual/debug_mode_using.html
---
 .github/workflows/root-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/root-ci.yml b/.github/workflows/root-ci.yml
index 5001449db3fa9..6d49f7718b429 100644
--- a/.github/workflows/root-ci.yml
+++ b/.github/workflows/root-ci.yml
@@ -396,7 +396,7 @@ jobs:
           - image: fedora44
           - image: alma8
           - image: alma9
-            overrides: ["CMAKE_BUILD_TYPE=Debug"]
+            overrides: ["CMAKE_BUILD_TYPE=Debug", "CMAKE_CXX_FLAGS=-D_GLIBCXX_DEBUG"]
           - image: alma10
           - image: ubuntu22
             overrides: ["imt=Off", "CMAKE_BUILD_TYPE=Debug"]