finding a circular dependency

[Robert Jacques]

On Mon, 21 Jun 2010 14:51:01 -0400, Steven Schveighoffer  
<schveiguy at yahoo.com> wrote:

> I've been trying to get a modified version of std.process to compile  
> (with Lars K's changes) for windows, and phobos finally compiled.
>
> So I built a little test program, compiled it, and I get the following  
> error message:
>
> object.Exception: circular dependency in module std.stdio.
>
> Great.  How did that happen?  Being that I didn't write std.stdio, only  
> modified it slightly (and certainly didn't change any imports), I  
> haven't the foggiest where this problem is.  Given that the runtime can  
> prove there is a circular dependency, and apparently knows the names of  
> the modules, how about showing me the cycle?
>
> :P
>
> I do not look forward to tracking this one down...
>
> -Steve

Templates and particularly type inference (i.e. auto variables and auto  
returns, etc) are common sources of forward reference, etc issues. Also,  
I'd recommend diff-ing the code bases to see exactly what you changed.