On Wednesday, 16 June 2021 at 16:27:13 UTC, Dennis wrote:
On Wednesday, 16 June 2021 at 14:38:10 UTC, jfondren wrote:
What do I change to
1. a script like this that uses hostname
2. the hostname module
so that both can be built with -betterC when and only when
the script is using -betterC?
That's currently the situation: you can only build when both
are betterC or else you get a linker error. It has to be a
linker error, dmd cannot know at the time of compiling project
A how project B is going to be compiled and vice versa.
It's dub that's calling dmd though. Cargo handles this situation
with
features: https://doc.rust-lang.org/cargo/reference/features.html
Where
this case would look something like
```
[dependencies]
hostname = { version = "0.1.1", features = ["betterC"] }
```
in the script's dub config that uses hostname.
I feel like I've seen similar configurations in dub configs, but
I see
nothing about this in the documentation.
It noticed your code looks like this:
```D
version(D_BetterC) {
char* hostnamez;
} else {
immutable char* hostnamez;
}
```
The different types result in different mangles, causing the
linking errors. Why not simply give them the same type?
the pragma(crt_constructor) function can't initialize immutables:
https://forum.dlang.org/post/wvjfygxfvmoaortmn...@forum.dlang.org
