Bug 952335 - Provide the full path for OS.Constants.Path.libxul on OSX. r=mossop

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

// Test that we can link with libxul using js-ctypes

const {Cu} = require("chrome");

const {ctypes} = Cu.import("resource://gre/modules/ctypes.jsm", {});

const {OS} = Cu.import("resource://gre/modules/osfile.jsm", {});

exports.test = function(assert) {

  let path = OS.Constants.Path.libxul;

  assert.pass("libxul is at " + path);

  let lib = ctypes.open(path);

  assert.ok(lib != null, "linked to libxul successfully");

};

require('test').run(exports);

  // library, which is sufficient to link to the library using js-ctypes.

#if defined(XP_MACOSX)

  // Under MacOS X, for some reason, libxul is called simply "XUL"

  nsAutoString libxul(NS_LITERAL_STRING("XUL"));

  // Under MacOS X, for some reason, libxul is called simply "XUL",

  // and we need to provide the full path.

  nsAutoString libxul;

  libxul.Append(gPaths->libDir);

  libxul.Append(NS_LITERAL_STRING("/XUL"));

#else

  // On other platforms, libxul is a library "xul" with regular

  // library prefix/suffix

  // library prefix/suffix.

  nsAutoString libxul;

  libxul.Append(NS_LITERAL_STRING(DLL_PREFIX));

  libxul.Append(NS_LITERAL_STRING("xul"));