Compiler module import graph

[frame]

On Saturday, 13 March 2021 at 14:30:52 UTC, ag0aep6g wrote:
> On 13.03.21 15:20, frame wrote:
>> Is there a tool to view module import graph?
>> 
>> The compiler verbose output shows that the module is 
>> imported/parsed but not why. I wan't to avoid unnecessary 
>> imports to speed up compile times or avoid issues if the 
>> module contents are not fully compatible with the current 
>> compile target being in development.
>
> `dmd -deps` shows what imports what.
>
> https://dlang.org/dmd-linux.html#switch-deps
>
> Be aware that there is a bug where DMD misses some edges in the 
> graph:
> https://issues.dlang.org/show_bug.cgi?id=21238

For some reason the only output I get is 'interface function ... 
is not implemented' errors if I run this switch.