Problem with ImportC example?

[DLearner]

On Tuesday, 17 January 2023 at 17:36:41 UTC, ryuukk_ wrote:
> On Tuesday, 17 January 2023 at 17:12:49 UTC, DLearner wrote:
>> 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
>>
>> ```
>
> It works for me
>
> ```
> C:\Users\ryuukk\tmp>dmd -run ex01.c
> hello world
> ```
>
> Double check your visual studio installation, something is 
> wrong with your install probably

Tried twice - same result.

But VS installation is itself (IMO) not particularly intuitive.
Would it be possible either to cite known working VS installation 
options on DLang website, or produce Windows installation script 
that takes such options automatically?