Why is D unpopular?

[Walter Bright]

On 5/13/2022 10:35 AM, IGotD- wrote:
> There must be a similar way as with C compilers (the -D command line option) to 
> inject defines. The D compiler must add this so that import C constants can be 
> defined at the command line otherwise we have that extra custom build step again.

The plan is to add a switch to dmd that passes command line options on to the 
preprocessor. Just like what dmd does to pass such to the linker.