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digitalmars.D.learn - Windows static linking question

reply frame <frame86 live.com> writes:
 From my source...

```d
// main.d
pragma(lib, common.lib);
extern (C) void fun(bool something);
```

```d
// common.d
export extern (C) void fun(bool something) {
     // ...
}
```
...I'm creating a static linked DLL with this command...

```
rdmd --build-only -L/DLL -L/OUT:common.dll -m64 -of=common.dll 
common.d
```

... and this works.

However, I get a ```std.file.FileException std\file.d(991): 
Attempting to rename file common.dll.tmp to common.dll``` error 
every time at compiling because of the ```-L/OUT``` argument. But 
I cannot omit it because it would create and link a 
common.dll.tmp instead - for whatever reason.


I know there is a ```-lib``` switch which also can create a 
common.lib, but that's obviously not the same as the LIB does not 
target to the DLL and the code ends just compiled in than linked.

So, is there another switch combo to achieve static linking by 
creating a LIB-file? Like a ```-lib -target=```?
Apr 26 2021
parent reply Imperatorn <johan_forsberg_86 hotmail.com> writes:
On Tuesday, 27 April 2021 at 06:29:40 UTC, frame wrote:

 From my source...

 ```d
 // main.d
 pragma(lib, common.lib);
 extern (C) void fun(bool something);
 ```

 [...]


Did you mean to use rdmd and not dmd? 🤔
Apr 27 2021
parent reply frame <frame86 live.com> writes:
On Tuesday, 27 April 2021 at 07:13:16 UTC, Imperatorn wrote:

 On Tuesday, 27 April 2021 at 06:29:40 UTC, frame wrote:

 From my source...

 ```d
 // main.d
 pragma(lib, common.lib);
 extern (C) void fun(bool something);
 ```

 [...]


 Did you mean to use rdmd and not dmd? 🤔


I could not get it working using dmd. It gaves me LNK2001 linker 
errors. I honestly have no idea what rdmd else applies to the 
linker (should inspect it with sysinternals).

But this should not have any impact on the LIB-file. I build the 
EXE also with rdmd and if the LIB-file contains the link to the 
DLL everything is fine.
Apr 27 2021
parent reply Mike Parker <aldacron gmail.com> writes:
On Tuesday, 27 April 2021 at 07:41:28 UTC, frame wrote:

 Did you mean to use rdmd and not dmd? 🤔


 I could not get it working using dmd. It gaves me LNK2001 
 linker errors. I honestly have no idea what rdmd else applies 
 to the linker (should inspect it with sysinternals).


What is your dmd command line?
Apr 27 2021
parent reply frame <frame86 live.com> writes:
On Tuesday, 27 April 2021 at 07:55:53 UTC, Mike Parker wrote:

 On Tuesday, 27 April 2021 at 07:41:28 UTC, frame wrote:

 Did you mean to use rdmd and not dmd? 🤔


 I could not get it working using dmd. It gaves me LNK2001 
 linker errors. I honestly have no idea what rdmd else applies 
 to the linker (should inspect it with sysinternals).


 What is your dmd command line?


not very different:

```
dmd -L/DLL -L/OUT:common.dll -m64 -of=common.dll -I=sources 
common.d
```
Apr 27 2021
parent reply Mike Parker <aldacron gmail.com> writes:
On Tuesday, 27 April 2021 at 08:33:23 UTC, frame wrote:

 On Tuesday, 27 April 2021 at 07:55:53 UTC, Mike Parker wrote:

 On Tuesday, 27 April 2021 at 07:41:28 UTC, frame wrote:

 Did you mean to use rdmd and not dmd? 🤔


 I could not get it working using dmd. It gaves me LNK2001 
 linker errors. I honestly have no idea what rdmd else applies 
 to the linker (should inspect it with sysinternals).


 What is your dmd command line?


 not very different:

 ```
 dmd -L/DLL -L/OUT:common.dll -m64 -of=common.dll -I=sources 
 common.d
 ```


What specifically are the linker errors? Is it referring to 
`_DLLMainCRTStartup` or something else?

Also, I suspect the reason you're getting the renaming errors 
with rdmd is because you're passing both `-L/OUT:common.dll` and 
`-of=common.dll`. You should only need one of them (same goes for 
dmd). But I don't think rdmd is intended to actually compile a 
distributable binary. You should try to get this working with dmd 
to solve your linker errors.
Apr 27 2021
parent reply frame <frame86 live.com> writes:
On Tuesday, 27 April 2021 at 08:50:37 UTC, Mike Parker wrote:


 What specifically are the linker errors? Is it referring to 
 `_DLLMainCRTStartup` or something else?


Various "unresolved external symbol", mostly
```..._ClassZ```,
```...__ModuleInfoZ```,
```..._initZ``` from my classes and functions
but also ```_D3std5regex__T8CapturesTAyaZQo6__initZ```


 Also, I suspect the reason you're getting the renaming errors 
 with rdmd is because you're passing both `-L/OUT:common.dll` 
 and `-of=common.dll`.


No, it's caused by ```-L/OUT``` only. ```-of``` is redudant here 
indeed, but doesn't change anything.
Apr 27 2021
parent reply Mike Parker <aldacron gmail.com> writes:
On Tuesday, 27 April 2021 at 10:43:20 UTC, frame wrote:

 On Tuesday, 27 April 2021 at 08:50:37 UTC, Mike Parker wrote:


 What specifically are the linker errors? Is it referring to 
 `_DLLMainCRTStartup` or something else?


 Various "unresolved external symbol", mostly
 ```..._ClassZ```,
 ```...__ModuleInfoZ```,
 ```..._initZ``` from my classes and functions
 but also ```_D3std5regex__T8CapturesTAyaZQo6__initZ```


 Also, I suspect the reason you're getting the renaming errors 
 with rdmd is because you're passing both `-L/OUT:common.dll` 
 and `-of=common.dll`.


 No, it's caused by ```-L/OUT``` only. ```-of``` is redudant 
 here indeed, but doesn't change anything.


So you have more than just common.d? You need to compile and link 
all of your source modules. The big `-I` is for imports, for the 
compiler to know what symbols are available. You will also need 
to either include all of the source files on the command line OR 
specify `-i`, which will tell the compiler to compile all 
imported files except the `std` namespace. rdmd does that by 
default.
Apr 27 2021
parent frame <frame86 live.com> writes:
On Tuesday, 27 April 2021 at 11:08:29 UTC, Mike Parker wrote:


 So you have more than just common.d? You need to compile and 
 link all of your source modules. The big `-I` is for imports, 
 for the compiler to know what symbols are available. You will 
 also need to either include all of the source files on the 
 command line OR specify `-i`, which will tell the compiler to 
 compile all imported files except the `std` namespace. rdmd 
 does that by default.


Indeed, rdmd passes some other files too. Ahh.. this makes sense 
now. I know the option but I always thought it's enabled on 
default. Thanks!
Apr 27 2021