Consistent naming for library-packages

In the context of moving pyarrow into the arrow-cpp-feedstock, there was some discussion of naming the outputs, and I brought up the following:

Regarding the naming conventions, I think it might be worth renaming arrow-cpp to libarrow. This is in line with a lot of other feedstocks, but obviously a matter of taste. In this case, we’d have to have a compatibility output of arrow-cpp that depends on libarrow, which could be dropped after a few versions.

@isuruf made me aware of this in the context of faiss. Other examples I can think of off the top of my head are blas & lapack, openblas, opencv, postgresql, gdal, plus a whole bunch more (non-exhaustive).

Of course, this recipe has some counter examples to this: aws-sdk-cpp, boost-cpp, grpc-cpp, thrift-cpp, but I think they are far in the minority and the same argument could be made for renaming those (maybe worth noting that at least the last two seem to have been started by the arrow team).

Following @isuruf’s and @xhochy’s input, I’m opening this issue here. Also note @isuruf’s comment:

@isuruf: -cpp was a trend that I started with boost-cpp. That was a mistake. I’m in favour of changing it, but this is not the correct place to raise the issue.

[xhochy]

I would prefer that in the cases where we have a binary, we should split it up into a separate output (if we are touching the package) and really keep packages with a lib prefix library only packages. libprotobuf in build always confuses me even though I maintain that package for a long time. For example in the case of thrift-cpp, I have split up the package https://github.com/conda-forge/thrift-cpp-feedstock/blob/f5a6473f172fe475bafdec30555ffcb1dcfe9652/recipe/meta.yaml#L81 as the compiler was 90% of the package size. Here the naming transition was simpler as the initial package was called thrift-cpp, so the new outputs didn’t clash with the existing packages.

[jjhelmus]

I’m in favor of using libexample for the name of the example library package.
cpp is a particular confusing name as cpp is both a common suffix for C++ source files (foo.cpp) and the name of the C Preprocessor.