From 247497eacfd03f0faf13ad69c5d006248ad3d24a Mon Sep 17 00:00:00 2001
From: scivision <scivision@users.noreply.github.com>
Date: Fri, 27 Sep 2024 13:52:53 -0400
Subject: NVHPC: Record C++23 support

NVHPC 24.9 documents support for `-std=c++23` [1].

[1] https://docs.nvidia.com/hpc-sdk/archive/24.9/hpc-sdk-release-notes/index.html
---
 Modules/Compiler/NVHPC-CXX.cmake | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Modules/Compiler/NVHPC-CXX.cmake b/Modules/Compiler/NVHPC-CXX.cmake
index 0d804f4..e849cbd 100644
--- a/Modules/Compiler/NVHPC-CXX.cmake
+++ b/Modules/Compiler/NVHPC-CXX.cmake
@@ -20,4 +20,11 @@ else()
   # can't occur in the same invocation
   set(CMAKE_CXX_DEPENDS_EXTRA_COMMANDS "<CMAKE_CXX_COMPILER> <DEFINES> <INCLUDES> <FLAGS> -x c++ -M <SOURCE> -MT <OBJECT> -MD<DEP_FILE>")
 endif()
+
+if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 24.9)
+  set(CMAKE_CXX23_STANDARD_COMPILE_OPTION -std=c++23)
+  set(CMAKE_CXX23_EXTENSION_COMPILE_OPTION -std=c++23) # -std=gnu++23 is missing
+  set(CMAKE_CXX_STANDARD_LATEST 23)
+endif()
+
 __compiler_nvhpc(CXX)
-- 
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