Add run_exports

[saraedum]

Since fmt is a shared library, we should tell every recipe that builds against it to require a compatible version at runtime.

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe) and found it was in an excellent condition.

[saraedum]

@conda-forge-admin, please rerender.

[tdegeus]

Thanks for the PR.

This feature is new to me. Can you argue what this solves? I always thought that any package that builds against this library should just include the library (and optionally the version) in the dependencies. A second question is that if this is necessary, shouldn't it be done here https://github.com/conda-forge/conda-forge-pinning-feedstock ?

[saraedum]

@conda-forge-admin, please rerender.

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I was trying to look for recipes to lint for you, but it appears we have a merge conflict.
Please try to merge or rebase with the base branch to resolve this conflict.

Please ping the 'conda-forge/core' team (using the @ notation in a comment) if you believe this is a bug.

[saraedum]

Sorry for the late reply.

I always thought that any package that builds against this library should just include the library (and optionally the version) in the dependencies.

I believe that it used to be like that before this feature was available. This makes every package that has fmt in host have a compatible version in run.

A second question is that if this is necessary, shouldn't it be done here conda-forge/conda-forge-pinning-feedstock ?

This is not the recommended way of doing things anymore: conda-forge/conda-forge-pinning-feedstock#503 (review)

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe) and found it was in an excellent condition.

[tdegeus]

I finally sort of clarified the questions I was having. It seems that both this PR, as well as conda-forge/conda-forge-pinning-feedstock#503 should be merged to get proper pinning.