From 7cbbb08e7be8114d4285e15634fc6b5ae23c17f6 Mon Sep 17 00:00:00 2001
From: Andrey Semashev <andrey.semashev@gmail.com>
Date: Sat, 25 Nov 2023 16:02:01 +0300
Subject: [PATCH] Use libstdc++11 for clang prior to 16.

Clang prior to version 16 does not support libstdc++13 that is installed
by default in GHA image ubuntu 22.04 in C++20 mode.
---
 .github/workflows/ci.yml | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e73fd5d..bb144b0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -228,30 +228,40 @@ jobs:
             os: ubuntu-22.04
             install:
               - clang-11
+              - g++-11
+            gcc_toolchain: 11
           - toolset: clang
             compiler: clang++-12
             cxxstd: "03,11,14,17,20,2b"
             os: ubuntu-22.04
             install:
               - clang-12
+              - g++-11
+            gcc_toolchain: 11
           - toolset: clang
             compiler: clang++-13
             cxxstd: "03,11,14,17,20,2b"
             os: ubuntu-22.04
             install:
               - clang-13
+              - g++-11
+            gcc_toolchain: 11
           - toolset: clang
             compiler: clang++-14
             cxxstd: "03,11,14,17,20,2b"
             os: ubuntu-22.04
             install:
               - clang-14
+              - g++-11
+            gcc_toolchain: 11
           - toolset: clang
             compiler: clang++-15
             cxxstd: "03,11,14,17,20,2b"
             os: ubuntu-22.04
             install:
               - clang-15
+              - g++-11
+            gcc_toolchain: 11
           - toolset: clang
             compiler: clang++-15
             cxxstd: "03,11,14,17,20,2b"