Update CMake for CUDA 13

Update CMake to the latest 3.x bugfix version, v3.31.12.
Backport cmake!12162 CUDA: Add support for cuda_std_23 for nvcc 13.3+.

Author: fwyzard

cmake.spec

@@ -1,6 +1,8 @@
-### RPM external cmake 3.31.7
+### RPM external cmake 3.31.12
 %define downloaddir %(echo %realversion | cut -d. -f1,2)
 Source: http://www.cmake.org/files/v%{downloaddir}/%n-%realversion.tar.gz
+# Note: this patch should be removed after updating to CMake 4.4+
+Patch0: patches/cmake_cuda_std_23
 Requires: bz2lib curl expat zlib
 BuildRequires: gmake
 
@@ -42,4 +44,4 @@ make %makeprocesses
 make install/strip
 
 # Look up documentation online.
-%define drop_files %i/{doc,man}
+%define drop_files %i/{doc,man}

patches/cmake_cuda_std_23.patch

@@ -0,0 +1,40 @@
+commit d01c9a429b25fcea8f5b77547adc23f3fede0471
+Author: Arha Gatram <agatram@nvidia.com>
+Date:   Wed Jun 10 15:53:55 2026 +0000
+
+    CUDA: Add support for cuda_std_23 for nvcc 13.3+
+    
+    CUDA 13.3 has been released with support for `-std=c++23`.
+
+diff --git a/Modules/Compiler/NVIDIA.cmake b/Modules/Compiler/NVIDIA.cmake
+index 0d0f03ad00..5bf7044159 100644
+--- a/Modules/Compiler/NVIDIA.cmake
++++ b/Modules/Compiler/NVIDIA.cmake
+@@ -46,6 +46,14 @@ macro(__compiler_nvidia_cxx_standards lang)
+         set(CMAKE_${lang}_STANDARD_LATEST 20)
+       endif()
+     endif()
++
++    if (NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 13.3)
++      if(CMAKE_${lang}_SIMULATE_VERSION VERSION_GREATER_EQUAL 19.29.30129)
++        set(CMAKE_${lang}23_STANDARD_COMPILE_OPTION "-std=c++23")
++        set(CMAKE_${lang}23_EXTENSION_COMPILE_OPTION "-std=c++23")
++        set(CMAKE_${lang}_STANDARD_LATEST 23)
++      endif()
++    endif()
+   else()
+     set(CMAKE_${lang}03_STANDARD_COMPILE_OPTION "")
+     set(CMAKE_${lang}03_EXTENSION_COMPILE_OPTION "")
+@@ -75,6 +83,12 @@ macro(__compiler_nvidia_cxx_standards lang)
+       set(CMAKE_${lang}20_EXTENSION_COMPILE_OPTION "-std=c++20")
+       set(CMAKE_${lang}_STANDARD_LATEST 20)
+     endif()
++
++    if (NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 13.3)
++      set(CMAKE_${lang}23_STANDARD_COMPILE_OPTION "-std=c++23")
++      set(CMAKE_${lang}23_EXTENSION_COMPILE_OPTION "-std=c++23")
++      set(CMAKE_${lang}_STANDARD_LATEST 23)
++    endif()
+   endif()
+ 
+   __compiler_check_default_language_standard(${lang} 6.0 03)