[GHC] #13237: Extend TH with addModCStub

[GHC]

#13237: Extend TH with addModCStub
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        Reporter:                    |                Owner:
  facundo.dominguez                  |  facundo.dominguez
            Type:  feature request   |               Status:  patch
        Priority:  normal            |            Milestone:  8.2.1
       Component:  Template Haskell  |              Version:  8.0.1
      Resolution:                    |             Keywords:  inline-c
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D3106
       Wiki Page:                    |
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Comment (by nh2):

 What I had in mind is the following:

 You have a module that exposes some function `f` that is implemented in C.
 You have another module that contains a TH function `t` that that calls
 `f` at compile time. And a third module that uses `$(t)` to generate some
 code.

 Then the third module has to be recompiled when the C code or its includes
 change.

 Of course this question depends on whether the scenario above is even
 already possible. To my knowledge with `inline-c` it is not currently
 possible, but I might be wrong.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13237#comment:11>
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