I recommend going with the custom target / custom command route.
On Fri, Apr 27, 2018 at 5:19 AM, Stephen McDowell <sjm...@cornell.edu>
wrote:
> Upon further inspection, it seems more related to PRE_BUILD. The step to
> generating the files is through a add_custom_command call, which from the
> docs apparently may end up being PRE_LINK.
>
> I tried generating into the ${CMAKE_CURRENT_SOURCE}/include/nanogui,
> which will work for Makefiles but not for Ninja.
>
> So it seems that maybe this is not a pathing issue at all, but instead an
> order of operations issue. If the Ninja generator ends up having this as
> PRE_LINK, the files haven’t been generated yet.
>
> That doesn’t quite explain why it worked previously, but perhaps the
> original setup was inherently flawed by relying on PRE_BUILD which is not a
> guaranteed order.
>
> Does anybody have thoughts on how to change things? The files cannot be
> compiled on their own, but maybe I should instead create a fake target and
> make it a dependency of the real (object) library that needs them. I keep
> messing that up, but this seems the most promising.
>
> -Stephen
>
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