Re: Interface loading and dynamic linking

I think part of what Ian is saying is that the default config for a Perf build for HEAD will build the dylib versions of all the libraries. Or am I not understanding the question? eg: see the default make file https://github.com/ghc/ghc/blob/master/mk/build.mk.sample#L55-L75 On Mon, Dec 23, 2013 at 12:59 PM, Ben Gamari wrote:

Ian Lynagh writes:

...

You shouldn't need dynamic-by-default. It should Just Work in HEAD, both unregisterised and registerised.

Just to clarify, how does one configure GHCi to use dynamic linking now? Should I interpret your message to mean that it is already configured this way? Where in the tree is this configured?

To be perfectly clear, I want to ensure that dynamic linking is always preferred over linking static objects with the RTS linker. Will this happen as things stand? How does GHCi decide how to load a library? Is this the role of GhcDynamic?

I'm still not really sure why `DYNAMIC_BY_DEFAULT` should be causing the problems I'm observing. It seems to me that it is functionally equivalent to passing the `-dynamic` flag as they both simply add `WayDyn` to DynFlag's `ways` list. Do you have any idea where they might differ?

Cheers,

- Ben

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