On 09.11.24 00:50, Marshall Clow via Boost wrote:
As always, the release managers would appreciate it if you download the candidate of your choice and give building it a try. Please report both success and failure, and anything else that is noteworthy.
I think I found a problem with the stl_interfaces library. In boost/stl_interfaces/config.hpp: #if (defined(__cpp_explicit_this_parameter) || \ (defined(_MSC_VER) && _MSC_VER >= 1941) || \ (defined(BOOST_CLANG_VERSION) && BOOST_CLANG_VERSION >= 190000)) && \ BOOST_STL_INTERFACES_USE_CONCEPTS && \ !defined(BOOST_STL_INTERFACES_DISABLE_DEDUCED_THIS) #define BOOST_STL_INTERFACES_USE_DEDUCED_THIS 1 #else #define BOOST_STL_INTERFACES_USE_DEDUCED_THIS 0 #endif In other words BOOST_STL_INTERFACES_USE_DEDUCED_THIS is set to 1 on any sufficiently modern clang, even if __cpp_explicit_this_parameter is not defined - such as when explicitly compiling with -std=gnu++20. I only discovered this when compiling with Emscripten, since I usually use gcc for desktop targets. -- Rainer Deyke - rainerd@eldwood.com