help: Unresolvable dependencies to package openssl

[Steven Schveighoffer]

On 3/8/23 7:52 PM, mw wrote:
> Hi,
> 
> In my dub.json, I have:
> 
> ```
>              "dependencies": {
>                      "apache-thrift": "==0.16.0",
>                      ...
>              }
> 
>              "subConfigurations": {
>                      "apache-thrift": "use_openssl_1_1",
>                      "pyd": "python39"
>              },
> 
> ```
> 
> But:
> 
>      $ dub build
>      Unresolvable dependencies to package openssl:
>        apache-thrift 0.16.0 depends on openssl ~>2.0.3
>        apache-thrift 0.16.0 depends on openssl ~>1.1.6
>        app ~master depends on openssl ~>2.0.3
> 
> 
> Why the subConfigurations: "use_openssl_1_1":
> 
> https://github.com/apache/thrift/blob/master/dub.json#L26
> 
>          {
>            "name": "use_openssl_1_1",
>            "versions": ["use_openssl_1_1_x"],
>            "dependencies": {
>              "openssl": {
>                "version": "~>2.0.3"
>              }
>            }
>          }
> 
> did not pick up the 2.0.3? but report conflict instead?
> 
> Thanks.

This is a known limitation -- dub builds the selections file based on 
*all* configurations in the file. If you have conflicting ones, it will 
not know what to pick.

However, if you manually construct the selections file, then it will work.

See https://github.com/dlang/dub/issues/1217

-Steve