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CMakeLists: Force C++20 on MSVC due to conflicts with C++23 modules

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The latest version of MSVC STL brings C++23 standard library modules, which conflict with precompiled headers.
Disabling with /experimental:module- has no effect, so force C++20 in the meantime while we wait for module support in other compilers.
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Morph 2023-06-06 20:19:44 -04:00
parent d7989de346
commit 4d37337551
2 changed files with 5 additions and 3 deletions
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CMakeLists.txt
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@ -255,7 +255,7 @@ endif()
# boost asio's concept usage doesn't play nicely with some compilers yet.
add_definitions(-DBOOST_ASIO_DISABLE_CONCEPTS)
if (MSVC)
add_compile_options($<$<COMPILE_LANGUAGE:CXX>:/std:c++latest>)
add_compile_options($<$<COMPILE_LANGUAGE:CXX>:/std:c++20>)
# boost still makes use of deprecated result_of.
add_definitions(-D_HAS_DEPRECATED_RESULT_OF)