CMake/Tests/RunCMake/CXXModules/CMP0155-NEW.cmake at af2fb376a41b47e19bf5effe1adad7bdc0ffd4e7 - CMake - Gitea - ZeroTwo

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Ben Boeckel 889aa0354a CMP0155: ignore scanning for sources if no scanner is available

This allows for a more graceful transition for projects using C++20
without scanner support (e.g., Clang 15 or GCC 13). While newer
compilers will (needlessly) scan, it allows C++20-using projects to use
older compilers without having to set `CMAKE_CXX_SCAN_FOR_MODULES` to
support newer CMake minimum versions.

Fixes: #25357

2023-11-01 09:52:08 -04:00

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 enable_language(CXX)
 unset(CMAKE_CXX_SCANDEP_SOURCE)
 cmake_policy(SET CMP0155 NEW)
 add_library(cmp0155-new
   sources/cxx-anchor.cxx)
 set_target_properties(cmp0155-new
   PROPERTIES
     CXX_STANDARD 20
     CXX_STANDARD_REQUIRED ON)