gyp: add common targets

Author: legendecas

index.js

@@ -5,7 +5,7 @@ const includeDir = path.relative('.', __dirname);
 module.exports = {
   include: `"${__dirname}"`, // deprecated, can be removed as part of 4.0.0
   include_dir: includeDir,
-  gyp: path.join(includeDir, 'node_api.gyp:nothing'),
+  gyp: path.join(includeDir, 'node_addon_api.gyp'),
   isNodeApiBuiltin: true,
   needsFlag: false
 };

node_addon_api.gyp

@@ -0,0 +1,22 @@
+{
+  'targets': [
+    {
+      'target_name': 'node-addon-api',
+      'type': 'none',
+      'sources': [ 'napi.h', 'napi-inl.h' ],
+      'direct_dependent_settings': {
+        'include_dirs': [ '.' ],
+        'includes': ['noexcept.gypi'],
+      }
+    },
+    {
+      'target_name': 'node-addon-api-except',
+      'type': 'none',
+      'sources': [ 'napi.h', 'napi-inl.h' ],
+      'direct_dependent_settings': {
+        'include_dirs': [ '.' ],
+        'includes': ['except.gypi'],
+      }
+    }
+  ]
+}