[libcxx-commits] [libcxx] [libcxx] Export the formatter_integral for module build. (PR #131778)

[Louis Dionne via libcxx-commits]

ldionne wrote:

@ian-twilightcoder @Bigcheese Can you make a statement about the level of support of `-fno-implicit-modules`? Should we be adding yet another CI configuration for this "flavor" of modules?

Note that I'm not trying to push back on this patch, but I'm trying to figure out what our support matrix must be and how to catch these issues before our users (e.g. Chrome) runs into them because we have never considered those use cases. If the answer is "yes, we should be supporting `-fno-implicit-modules`", then I think it would make sense to add a CI configuration that tests with that flag, witness it failing without this patch, and then fix it with this patch.

https://github.com/llvm/llvm-project/pull/131778