Winelib stack overflow

[Vitor Ramos]

Hello,

I am not sure if this is the appropriate channel but here we go.

I am trying to port a windows c++ application using winelib and I found an issue while using some c++ STL containers. 

Here is a minimal example:

# winelib.dll.so

```c++
#include <windows.h>
#include <unordered_map>
#include <string>

extern "C"
int f1(long z)
{
    std::unordered_map<int, std::string> y;
    return 10;
}

spec file
```c++
2 stdcall f1(long)
```

# Building winelib.dll.so
winemaker --console --dll .
winebuild --implib -E winedll.spec -o libwinedll.a
winebuild --fake-module --dll -E winedll.spec -o winedll.dll
make

cp libwinedll.a winedll.dll.so /usr/local/lib/wine/x86_64-unix
cp winedll.dll /home/$USER/.wine/drive_c/windows/system32

win64 app
```c++
#include <iostream>

extern "C"{
int f1(long z);
}

int main(){
    int ret = f1(2);
    std::cout << ret << std::endl;
}
```

# Building win64 app
winemaker . -iwinedll
make

# Running
wine64 win64app.exe.so

# Output
0110:err:virtual:virtual_setup_exception stack overflow 2128 bytes in thread 0110 addr 0x17008c804 stack 0x207b0 (0x20000-0x21000-0x120000)

If I remove the "std::unordered_map<int, std::string> y" from the custom lib it runs normally.

I suspect that wine uses too much of the stack to construct the object, but it's just a wild guess.

Does anybody know what the issue could be?
Is it possible to increase the stack size?

Thanks.