name:          call-haskell-from-anything
version:       1.1.0.0
license:       MIT
author:        Niklas Hambüchen (mail@nh2.me)
maintainer:    Niklas Hambüchen (mail@nh2.me)
category:      Network
-- We use Configure to determine the `extra-libraries: HSrts-ghc*.*.*` field.
-- See the ./configure script.
build-type:    Configure
license:       MIT
synopsis:      Call Haskell functions from other languages via serialization and dynamic libraries
description:   FFI via serialisation. See https://github.com/nh2/call-haskell-from-anything for details.
stability:     experimental
tested-with:   GHC==8.0.2
cabal-version: >= 1.10
homepage:      https://github.com/nh2/call-haskell-from-anything
bug-reports:   https://github.com/nh2/call-haskell-from-anything/issues


extra-source-files:
  configure
  detect-ghc-buildinfo.py


source-repository head
  type: git
  location: git://github.com/nh2/call-haskell-from-anything.git


library
  default-language: Haskell2010
  hs-source-dirs:
    src
  exposed-modules:
    FFI.Anything.TH
    FFI.Anything.TypeUncurry
    FFI.Anything.TypeUncurry.Msgpack
    FFI.Anything.TypeUncurry.DataKinds
  build-depends:
      base >= 4.8 && < 5
    , bytestring >= 0.10.0.0
    , data-msgpack >= 0.0.10
    , storable-endian >= 0.2.6
    , template-haskell >= 2.11.0
    , mtl >= 2.1.2
  ghc-options:
    -Wall -fwarn-unused-imports


executable call-haskell-from-anything.so
  default-language: Haskell2010
  hs-source-dirs:
    test
  main-is:
    Test1.hs
  build-depends:
      call-haskell-from-anything

    -- Packages that already have version bounds in the library:
    , base
    , bytestring
    , data-msgpack
    , mtl
  ghc-options:
    -- For building TemplateHaskell with cabal and -dynamic, we have to disable -dynamic sometimes
    -no-hs-main -fPIC -shared -dynamic

  -- If we don't specify the Haskell RTS as extra-libraries, we get errors like
  -- the following when calling from some other language:
  --   /usr/lib/ghc/ghc-prim-0.3.0.0/libHSghc-prim-0.3.0.0-ghc7.6.3.so: undefined symbol: stg_forkOnzh
  --
  -- The `build-type: Configure` with the `./configure` script makes sure that
  -- an `extra-libraries: HSrts-ghc*.*.*` field is added using cabal's .buildinfo infrastructure.
  -- See http://stackoverflow.com/questions/6034526/how-can-configuration-tools-like-sdl-config-be-used-with-a-cabalized-project
  -- and https://github.com/nh2/call-haskell-from-anything/pull/2#issuecomment-68638262.