Work in progres, please take a look and give early feedback if this is the way we want to structure…

src/vm/vm.gyp

Index: src/vm/vm.gyp
diff --git a/src/vm/vm.gyp b/src/vm/vm.gyp
index 79b5b9c96d7d4c8658d0bfdf2f5d19bfe62084d6..d2963b29303421bad19813cc417a64399a80abed 100644
--- a/src/vm/vm.gyp
+++ b/src/vm/vm.gyp
@@ -23,7 +23,11 @@
         'event_handler.cc',
         'event_handler_macos.cc',
         'event_handler_linux.cc',
+        'ffi.h',
         'ffi.cc',
+        'ffi_linux.cc',
+        'ffi_macos.cc',
+        'ffi_posix.cc',
         'fletch.cc',
         'fletch_api_impl.cc',
         'heap.cc',
@@ -69,6 +73,7 @@
         'fletch_vm_library_base',
         '../shared/shared.gyp:fletch_shared',
         '../double_conversion.gyp:double_conversion',
+        'ffi_test_library',
       ],
 
       # TODO(kasperl): Remove the below conditions when we no longer use weak
@@ -215,5 +220,24 @@
         '../shared/test_main.cc',
       ],
     },
+    {
+      'target_name': 'ffi_test_library',
+      'type': 'shared_library',
+      'dependencies': [
+      ],
+      # We need to unset a few cflags since they are not allowed when compiling
+      # a c library.
+      'cflags!': [
+        '-std=c++11',
+        '-fno-rtti',
+        '-Wno-non-virtual-dtor',
+      ],
+      'sources': [
+        'ffi_test_library.c',
+      ],
+      'defines': [
+        'PIC',
+      ],
+    },
   ],
 }