capi incompatibilities could cause us issues

[kozross]

Based on this GHC issue here, we may have trouble if we enforce capi everywhere. In fact, I've already run into problems with it. Twice.

While in my linked cases, it's not exactly a problem, as having bindings to those helpers isn't strictly necessary, this may cause us trouble in the future with things we do care about. What should our policy be in this case? I can see two solutions:

• Use ccall for the problem cases; or
• Wait for GHC to fix the issue upstream, or even commit some time ourselves to fix it.

The first option is the one I prefer, but I'm not sure if it will be problematic or not. The second option is better ecosystemically-speaking, but will take much longer, and essentially limit us only to those compiler version(s) that will have this fix backported to them.

@Kleidukos - what are your thoughts on this?

[kozross]

It appears that an upstream fix may be en-route.