Building simple programs without dub is easy, just pass a list of .d source files to `dmd` or `ldc2`.

What if I want to include a 3rd party library? Surely before dub existed, people were incorporating other libraries in their projects.

I want to learn how this works from first principles. I've been working with dynamic/interpreted languages for too long, I forgot what it's like to build native programs without a dependency manager.

Any help would be appreciated!

26.08.2017 12:03, Hasen Judy пишет:
> Building simple programs without dub is easy, just pass a list of .d source files to `dmd` or `ldc2`.
> 
> What if I want to include a 3rd party library? Surely before dub existed, people were incorporating other libraries in their projects.
> 
> I want to learn how this works from first principles. I've been working with dynamic/interpreted languages for too long, I forgot what it's like to build native programs without a dependency manager.
> 
> Any help would be appreciated!

It's like C++. If you use Linux then:
```
dmd <list of your .d files like you do> -L/path/to/lib -llibrarynamewithoutlibprefix
```
or example
```
dmd myapp.d -L../otherproject/lib -lcool
```
line above compiles `myapp.d` file and links it with library `libcool` that is place in directory `../otherproject/lib`

On Saturday, 26 August 2017 at 10:02:03 UTC, drug wrote:
> It's like C++. If you use Linux then:
> ```
> dmd <list of your .d files like you do> -L/path/to/lib -llibrarynamewithoutlibprefix
> ```
> or example
> ```
> dmd myapp.d -L../otherproject/lib -lcool
> ```
> line above compiles `myapp.d` file and links it with library `libcool` that is place in directory `../otherproject/lib`

Thanks for your response!

So if I may make a guess, when you include a dependency in a dub project, what it ends up doing is compiling the dependency separately into a lib file then statically link the lib with your project?

26.08.2017 13:05, Hasen Judy пишет:
> On Saturday, 26 August 2017 at 10:02:03 UTC, drug wrote:
>> It's like C++. If you use Linux then:
>> ```
>> dmd <list of your .d files like you do> -L/path/to/lib -llibrarynamewithoutlibprefix
>> ```
>> or example
>> ```
>> dmd myapp.d -L../otherproject/lib -lcool
>> ```
>> line above compiles `myapp.d` file and links it with library `libcool` that is place in directory `../otherproject/lib`
> 
> Thanks for your response!
> 
> So if I may make a guess, when you include a dependency in a dub project, what it ends up doing is compiling the dependency separately into a lib file then statically link the lib with your project?
Yes

On 26-08-17 12:02, drug wrote:
> 26.08.2017 12:03, Hasen Judy пишет:
>> Building simple programs without dub is easy, just pass a list of .d source files to `dmd` or `ldc2`.
>>
>> What if I want to include a 3rd party library? Surely before dub existed, people were incorporating other libraries in their projects.
>>
>> I want to learn how this works from first principles. I've been working with dynamic/interpreted languages for too long, I forgot what it's like to build native programs without a dependency manager.
>>
>> Any help would be appreciated!
> 
> It's like C++. If you use Linux then:
> ```
> dmd <list of your .d files like you do> -L/path/to/lib -llibrarynamewithoutlibprefix
> ```
> or example
> ```
> dmd myapp.d -L../otherproject/lib -lcool
> ```
> line above compiles `myapp.d` file and links it with library `libcool` that is place in directory `../otherproject/lib`

You will need an extra `-L` to pass things to the linker with dmd.

```
dmd myapp.d -L-L../otherproject/lib -L-lcool
```

-- 
Mike Wey

On Saturday, 26 August 2017 at 09:03:03 UTC, Hasen Judy wrote:
> Building simple programs without dub is easy, just pass a list of .d source files to `dmd` or `ldc2`.
>
> What if I want to include a 3rd party library?

It is also easy, just pass the list of its d source files to the compiler as well. Quite trivial, really.

On Saturday, 26 August 2017 at 12:45:31 UTC, Adam D. Ruppe wrote:
> On Saturday, 26 August 2017 at 09:03:03 UTC, Hasen Judy wrote:
>> Building simple programs without dub is easy, just pass a list of .d source files to `dmd` or `ldc2`.
>>
>> What if I want to include a 3rd party library?
>
> It is also easy, just pass the list of its d source files to the compiler as well. Quite trivial, really.

Note that yesterday I pushed a PR to dmd that allows you to import 3rd party libraries without having to list all their d source files on the command line (https://github.com/dlang/dmd/pull/7099).  So long as the compiler knows where to find them (using -I<path>), if you specify -ci (compile imports) it will automatically treat all unknown imports as if they were specified on the command line.

On Saturday, 26 August 2017 at 09:03:03 UTC, Hasen Judy wrote:
> What if I want to include a 3rd party library? Surely before dub existed, people were incorporating other libraries in their projects.

sometimes pragma("lib", ...) very usefull (if i understand you correctly)

https://dlang.org/spec/pragma.html#lib