Compile time executable calling?

[Peter Alexander]

On Saturday, 13 July 2013 at 11:19:49 UTC, Daniel Kozak wrote:
> A few minutes ago, I have a same issue. I need add some enum 
> values as a compile option.
>
> Now I have something like this:
> version (Parser) {
> 	enum Application = "parser";
> }
> version (Report) {
> 	enum Application = "report";
> }
>
> But would be nice to have posibility to add same value as a 
> compile parametr, so I could have code like this:
>
> enum Application = __traits(getParametrValue, 
> "MY_APPLICATION_NAME");
>
> and compile code with some args for eg.: 
> -VMY_APPLICATION_NAME=parser

You can solve this using import expressions.

---parser/config.include---
enum Application = "parser";

---report/config.include---
enum Application = "report";

---main.d---
mixin(import("config.include"));

---Makefile---
parser:
     dmd main.d -Jparser

report:
     dmd main.d -Jreport