option(CAF_USE_STD_FORMAT "Enable std::format support" ON)
cmake -DCMAKE_CXX_FLAGS="-stdlib=libc++" -B build

clang version 19.1.5
cmake version 3.31.0
ninja version 1.11.1
debian 12

/actor-framework-main/libcaf_core/caf/detail/format.test.cpp:30:3: error: static assertion failed due to requirement 'std::is_same_v<std::vector<int, std::allocator<int>> &&, std::string>'
   30 |   std::is_same_v<decltype(fmt_fwd(std::declval<std::vector<int>>())),
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   31 |                  std::string>);
      |                  ~~~~~~~~~~~~
1 error generated.
[255/667] Building CXX object libcaf_core/CMakeFiles/caf-core-test.dir/caf/detail/parse.test.cpp.o