If they are the same (I think so) we should mark one of them as deprecated:
jsonformoderncpp: https://github.com/conan-io/conan-center-index/blob/master/recipes/jsonformoderncpp/all/conanfile.pyPlease, add the same message to the top of the conanfile.py in jsonformoderncpp
Do you think we should standardize this comment at the top of the recipe file and maybe add it to the knowledge base?
the deprecated should also be in conan center e.g. https://conan.io/center/jsonformoderncpp/3.7.0/?user=_&channel=_
Is 'gettext' the same recipe as 'libgettext'?
Same old case: installer package x library package. Now, using the new x-building feature, we can unify both into an unique recipe.
Do you think we should standardize this comment at the top of the recipe file and maybe add it to the knowledge base?
Yes, definitely. Over the years this will happen a lot. So we should standardize it to not create confusion.
I think there are two forms of deprecations we need to talk about:
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the deprecated should also be in conan center e.g. https://conan.io/center/jsonformoderncpp/3.7.0/?user=_&channel=_