node-gyp: download header tarball for compile

Temporary fix only, node-gyp needs to be aware of whether it can even
download this file for the current runtime so that information needs to
come from the process itself.

Floating patch on npm.

PR-URL: https://github.com/nodejs/io.js/pull/2066
Reviewed-By: Johan Bergström <bugs@bergstroem.nu>
Reviewed-By: Ryan Graham <ryan@strongloop.com>

deps/npm/node_modules/node-gyp/addon.gypi

@@ -5,6 +5,7 @@
     'product_prefix': '',
 
     'include_dirs': [
+      '<(node_root_dir)/include/node',
       '<(node_root_dir)/src',
       '<(node_root_dir)/deps/uv/include',
       '<(node_root_dir)/deps/v8/include'

deps/npm/node_modules/node-gyp/lib/configure.js

@@ -310,7 +310,11 @@ function configure (gyp, argv, callback) {
     // this logic ported from the old `gyp_addon` python file
     var gyp_script = path.resolve(__dirname, '..', 'gyp', 'gyp_main.py')
     var addon_gypi = path.resolve(__dirname, '..', 'addon.gypi')
-    var common_gypi = path.resolve(nodeDir, 'common.gypi')
+    var common_gypi = path.resolve(nodeDir, 'include/node/common.gypi')
+    //TODO: ideally async
+    if (!fs.existsSync(common_gypi))
+      common_gypi = path.resolve(nodeDir, 'common.gypi')
+
     var output_dir = 'build'
     if (win) {
       // Windows expects an absolute path

deps/npm/node_modules/node-gyp/lib/install.js

@@ -185,7 +185,7 @@ function install (gyp, argv, callback) {
 
       // now download the node tarball
       var tarPath = gyp.opts['tarball']
-      var tarballUrl = tarPath ? tarPath : distUrl + '/v' + version + '/iojs-v' + version + '.tar.gz'
+      var tarballUrl = tarPath ? tarPath : distUrl + '/v' + version + '/iojs-v' + version + '-headers.tar.gz'
         , badDownload = false
         , extractCount = 0
         , gunzip = zlib.createGunzip()