How to use generate cpp code in 3rd build system

Hello.

I use generated from haxe cpp files (Haxe Compiler 3.4.0, hxcpp-3.4.49) in cmake build system (with flags from original build system). And use generated cpp file in business logic module from my project. All work with module processed in main thread. GC inits in main function.

```
int main(int argc,char** argv) {

#if defined HAXE_ENABLED
HX_TOP_OF_STACK
hx::Boot();
__boot_all();
#endif // HAXE_ENABLED
```

And create necessary classes in proxy with selected StackContext

```
hx::StackContext *_hx_ctx = hx::gMultiThreadMode ? hx::tlsStackContext : hx::gMainThreadContext;
m_battle_manager = ::src::SharedTestBattleManager_obj::__alloc( _hx_ctx );
```

I have got a problem with undefined behavior in this module. Any variable corrupts after some time work. (Lua target don't have this problem)

Either I use it uncorrect or add not all necessary flags.

```
-DTARGET_OS_IPHONE
-DIPHONE
-DHXCPP_M64
-D_CRT_SECURE_NO_DEPRECATE
-DHX_UNDEFINE_H
-DHAXE_ENABLED
-DHXCPP_CHECK_POINTER
-DHXCPP_STACK_LINE
-DHXCPP_STACK_TRACE
-DHXCPP_VISIT_ALLOCS
-DHXCPP_API_LEVEL=331
```

Do I use generated cpp files correctly?