From 0fb627b5460db37ef4c45ea8160991018844f3bc Mon Sep 17 00:00:00 2001
From: "M. Chornyi" <99709299+mc-nv@users.noreply.github.com>
Date: Wed, 9 Sep 2026 20:43:40 +0000
Subject: [PATCH] build: Update C++ standard from c++17 to c++20

Upstream PyTorch raised ATen's minimum required C++ standard from 17
to 20 (pytorch/pytorch#178150), which broke the pytorch_backend build.
Align this repo's TRITON_MIN_CXX_STANDARD/CMAKE_CXX_STANDARD default
with that floor for consistency across the stack.

TRI-1877
---
 CMakeLists.txt | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index a9a0a36..d713f6c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-# Copyright (c) 2020-2025, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+# Copyright (c) 2020-2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions
@@ -28,8 +28,8 @@ cmake_minimum_required(VERSION 3.31.8)
 
 project(tritonrepeatbackend LANGUAGES C CXX)
 
-# Use C++17 standard as Triton's minimum required.
-set(TRITON_MIN_CXX_STANDARD 17 CACHE STRING "The minimum C++ standard which features are requested to build this target.")
+# Use C++20 standard as Triton's minimum required.
+set(TRITON_MIN_CXX_STANDARD 20 CACHE STRING "The minimum C++ standard which features are requested to build this target.")
 
 #
 # Options