Merge topic 'clang_cxx26'

0183956d30 Clang: C++26 support

Acked-by: Kitware Robot <[email protected]>
Merge-request: !8480

Modules/Compiler/Clang.cmake

@@ -176,6 +176,8 @@ macro(__compiler_clang_cxx_standards lang)
     if(NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 17.0)
       set(CMAKE_${lang}23_STANDARD_COMPILE_OPTION "-std=c++23")
       set(CMAKE_${lang}23_EXTENSION_COMPILE_OPTION "-std=gnu++23")
+      set(CMAKE_${lang}26_STANDARD_COMPILE_OPTION "-std=c++26")
+      set(CMAKE_${lang}26_EXTENSION_COMPILE_OPTION "-std=gnu++26")
     elseif(NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 12.0)
       set(CMAKE_${lang}23_STANDARD_COMPILE_OPTION "-std=c++2b")
       set(CMAKE_${lang}23_EXTENSION_COMPILE_OPTION "-std=gnu++2b")