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I am using hpack+stack for a project and there is a hardcoded path (used for debugging, I don't want to do this properly) which are differs for mac os x and linux. Right now I have it on a gitignored file on it's own and that file differs between my workstations but I would much rather have the pre-processor deal with it.

Ideally I would like something equivalent to#ifdef __linux__, which dosnt work. I would even be happy with manipulating package.yaml to come up with -D compiler flags. Does hpack (which I think uses Data.Yaml) have this capability?

fakedrake
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1 Answers1

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hpack does support this: hpack conditionals. It looks something like this:

when:
  - condition: os(darwin)
  then:
    extra-lib-dirs: lib/darwin
  else:
    extra-lib-dirs: lib/linux
MCH
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