Possible codegen bug when using Tcl/Tk (related to DMC and DMD)

[yaz]

On Saturday, 17 August 2013 at 21:34:24 UTC, Andrej Mitrovic 
wrote:

I think this is the same issue as 
https://github.com/aldacron/Derelict3/issues/143

The solution advised by aldacron (Mike Parker) in his last few 
posts is to compile your D executable as a Windows subsystem exe 
or use WinMain instead of main.

> On 8/17/13, Andrej Mitrovic <andrej.mitrovich at gmail.com> wrote:
>> First, here is the C code:
>
> Btw, here's the D equivalent where I can also recreate the bug:
>
> -----
> import core.sys.windows.windows;
> import std.stdio;
>
> alias extern(C) void* function() Tcl_CreateInterp_Type;
> alias extern(C) int function(void*) Tcl_Init_Type;
> alias extern(C) int function(void*) Tk_Init_Type;
> alias extern(C) int function(void*, const(char)*) Tcl_Eval_Type;
> alias extern(C) void function() Tk_MainLoop_Type;
>
> int main()
> {
>     HMODULE hTcl = LoadLibraryA("tcl86.dll");
>     HMODULE hTk = LoadLibraryA("tk86.dll");
>
>     Tcl_CreateInterp_Type Tcl_CreateInterp;
>     Tcl_CreateInterp = 
> cast(Tcl_CreateInterp_Type)GetProcAddress(hTcl,
> "Tcl_CreateInterp");
>
>     Tcl_Init_Type Tcl_Init;
>     Tcl_Init = cast(Tcl_Init_Type)GetProcAddress(hTcl, 
> "Tcl_Init");
>
>     Tk_Init_Type Tk_Init;
>     Tk_Init = cast(Tk_Init_Type)GetProcAddress(hTk, "Tk_Init");
>
>     Tcl_Eval_Type Tcl_Eval;
>     Tcl_Eval = cast(Tcl_Eval_Type)GetProcAddress(hTcl, 
> "Tcl_Eval");
>
>     Tk_MainLoop_Type Tk_MainLoop;
>     Tk_MainLoop = cast(Tk_MainLoop_Type)GetProcAddress(hTk, 
> "Tk_MainLoop");
>
>     void* _interp = Tcl_CreateInterp();
>     Tcl_Init(_interp);
>     Tk_Init(_interp);
>
>     Tcl_Eval(_interp, "tkwait visibility .");
>     Tcl_Eval(_interp, "tk::toplevel .mywin");
>     Tcl_Eval(_interp, "wm resizable .mywin false false");
>
>     Tk_MainLoop();
>
>     return 0;
> }
> -----
>
> I've also tried the C sample with various DMC versions such as 
> 857,
> 846, 837, 830, but I still haven't found a version that doesn't 
> have
> this bug.
>
> Maybe the issue is with something else.. I can't tell what DMC 
> and GCC
> are doing differently here.