name:                   libffi-dynamic
version:                0.0.0.2
stability:              experimental

cabal-version:          >= 1.6
build-type:             Simple

author:                 James Cook <mokus@deepbondi.net>
maintainer:             James Cook <mokus@deepbondi.net>
license:                PublicDomain
homepage:               /dev/null

category:               Foreign
synopsis:               LibFFI interface with dynamic bidirectional
                        type-driven binding generation
description:            LibFFI interface with support for importing and
                        exporting function types inferred at compile time,
                        constructed at runtime, or a combination of both.

source-repository head
  type: git
  location: git://github.com/mokus0/libffi-dynamic.git

Library
  hs-source-dirs:       src
  exposed-modules:      Foreign.Dynamic
                        Foreign.Wrapper
                        Foreign.LibFFI.Dynamic
                        Foreign.LibFFI.Dynamic.Base
                        Foreign.LibFFI.Dynamic.CIF
                        Foreign.LibFFI.Dynamic.Closure
                        Foreign.LibFFI.Dynamic.FFIType
                        Foreign.LibFFI.Dynamic.Type
  ghc-options:          -fwarn-unused-binds -fwarn-unused-imports
  build-depends:        base >= 3 && < 5,
                        contravariant,
                        hashable,
                        intern
  extra-libraries:      ffi
  
  -- Custom build of libffi's closure allocator, so we can use
  -- ffi_closure_free on code pointers.
  -- also, GHC's ffi_closure_alloc just doesn't work on Mac OS
  -- anyway because it appears to be build without FFI_MMAP_EXEC_WRIT.
  c-sources:            cbits/closures.c
  cc-options:           -DFFI_CLOSURES=1
                        -DFFI_MMAP_EXEC_WRIT=1
                        -DMAYBE_UNUSED=
                        -DFFI_CLOSURE_FREE_CODE=1
                        -Dffi_closure_alloc=hs_ffi_closure_alloc
                        -Dffi_closure_free=hs_ffi_closure_free
  
  include-dirs:         cbits, include
  install-includes:     dlmalloc.c, hs_libffi_closure.h