Problem with ImportC example?

[DLearner]

On Tuesday, 17 January 2023 at 15:55:40 UTC, bachmeier wrote:
> On Tuesday, 17 January 2023 at 13:21:37 UTC, DLearner wrote:
>> On Tuesday, 17 January 2023 at 11:21:08 UTC, Dennis wrote:
>>> On Tuesday, 17 January 2023 at 11:16:25 UTC, DLearner wrote:
>>>> ```
>>>>
>>>> C:\Users\SoftDev\Documents\BDM\D\ImportC>dmd ex01.c
>>>> ex01.c(1): Error: C preprocessor directive `#include` is not 
>>>> supported
>>>> ex01.c(1): Error: no type for declarator before `#`
>>>> ex01.c(5): Error: no type for declarator before `return`
>>>> ex01.c(6): Error: no type for declarator before `}`
>>>> ```
>>>
>>> What is your `dmd --version`? I suspect you have a version 
>>> where you still have to manually pre-process the .c file, 
>>> instead of a more recent version which invokes the 
>>> pre-processor itself.
>>
>> ```
>> C:\Users\SoftDev>dmd --version
>> DMD32 D Compiler v2.100.2-dirty
>> Copyright (C) 1999-2022 by The D Language Foundation, All 
>> Rights Reserved written by Walter Bright
>>
>> ```
>
> You may want to use the nightly build if you're working with 
> ImportC: https://github.com/dlang/dmd/releases/tag/nightly 
> They're doing a lot of work with it.

Downloaded latest dmd for windows from website:
```
C:\Users\SoftDev>dmd --version
DMD32 D Compiler v2.101.2-dirty
Copyright (C) 1999-2022 by The D Language Foundation, All Rights 
Reserved written by Walter Bright
```

But trial still failed:

```
C:\Users\SoftDev\Documents\BDM\D\ImportC>dmd ex01.c
failed launching cl.exe /P /Zc:preprocessor /PD /nologo ex01.c 
/FIC:\D\dmd2\windows\bin\..\..\src\druntime\import\importc.h 
/Fiex01.i
Error: C preprocess command cl.exe failed for file ex01.c, exit 
status 1

```