Vany Serezhkin

@ldez there is very simple context GO111MODULE=on + go.mod in folder

and sorry, i can't provide the code.

``` running: "c++" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-2" "-fno-omit-frame-pointer" "-arch" "arm64" "-Wall" "-Wextra" "-o" "/Users/vany/b/unpack/target/debug/build/cxx-e088f39d86964a61/out/src/cxx.o" "-c" "src/cxx.cc" cargo:warning=In file included from src/cxx.cc:1: cargo:warning=src/../include/cxx.h:24:1: warning: inline namespaces are a C++11 feature...

may be this will help https://developer.apple.com/documentation/xcode-release-notes/xcode-14-release-notes