LDC / BetterC / _d_run_main

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On Saturday, 10 March 2018 at 12:00:12 UTC, Richard wrote:
> On Saturday, 10 March 2018 at 07:54:33 UTC, Mike Franklin wrote:
>> On Saturday, 10 March 2018 at 02:25:38 UTC, Richard wrote:
> [snip]
> Based on the above this seems to work fine so I'll use this 
> since it's the simplest option.
> ```
> extern(C) int main(int argc, char** argv) {
>     return d_main();
> }
>
> int d_main() {
>   // Do stuff
> }
> ```

You can simplify it further:

```
extern(C) int main(int argc, char** argv {
     //Do stuff
}
```

> This compiles but main() is never called btw
> ```
> import core.stdc.stdio;
>
> private alias extern(C) int function(char[][] args) 
> MainFuncType;
> extern (C) int _d_run_main(int argc, char **argv, void* 
> mainFunc)
> {
>     MainFuncType mFunc = cast(MainFuncType) mainFunc;
>     return mFunc(null);
> }
>
> int main() {
>   // Do stuff
> }
> ```
> I tried compiling with
> ldc2 -defaultlib= -debuglib= -mtriple=thumb-none-linux-eabi 
> -mcpu=cortex-m3 --od=. -c -betterC main.d

I think you should not put `-betterC` since you are trying to use 
_d_run_main, which is only called when in regular mode.