Ok, after some severe reverse-engineering I found the cause of the crash
I get in the release version of the MSVC compiled SDL.dll. The problem
lies in a calling convention mixup: The three wglXXX() functions are
__stdcall (or WINAPI) NOT __cdecl as declared in the SDL library. Each
time one of these function is called in SDL the arguments on the stack
are removed twice … this can’t run clean =)
The following code fixed the problem for me:
In the file <src/video/wincommon/SDL_wingl_c.h> modify:
HGLRC (*wglCreateContext)(HDC hdc);
BOOL (*wglDeleteContext)(HGLRC hglrc);
BOOL (*wglMakeCurrent)(HDC hdc, HGLRC hglrc);
to this:
HGLRC (WINAPI *wglCreateContext)(HDC hdc);
BOOL (WINAPI *wglDeleteContext)(HGLRC hglrc);
BOOL (WINAPI *wglMakeCurrent)(HDC hdc, HGLRC hglrc);
In the file <src/video/wincommon/SDL_wingl.c> modify:
this->gl_data->wglCreateContext = (HGLRC ()(HDC))
GetProcAddress(handle, “wglCreateContext”);
this->gl_data->wglDeleteContext = (BOOL ()(HGLRC))
GetProcAddress(handle, “wglDeleteContext”);
this->gl_data->wglMakeCurrent = (BOOL (*)(HDC, HGLRC))
GetProcAddress(handle, “wglMakeCurrent”);
to this:
this->gl_data->wglCreateContext = (HGLRC (WINAPI *)(HDC))
GetProcAddress(handle, “wglCreateContext”);
this->gl_data->wglDeleteContext = (BOOL (WINAPI *)(HGLRC))
GetProcAddress(handle, “wglDeleteContext”);
this->gl_data->wglMakeCurrent = (BOOL (WINAPI *)(HDC, HGLRC))
GetProcAddress(handle, “wglMakeCurrent”);
There is still a problem when I quit my application, it crash on a wierd
address. Well, I will try to fix this too.
I hope the above fix will give the dev-team enough hints to fix the
problem 
+Beosil