xcode emulation for make: Adjust .a and .dylib entries in 'libraries'.

test/mac/libraries/test.gyp

Index: test/mac/libraries/test.gyp
===================================================================
--- test/mac/libraries/test.gyp	(revision 0)
+++ test/mac/libraries/test.gyp	(revision 0)
@@ -0,0 +1,21 @@
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+{
+  'targets': [
+    {
+      'target_name': 'libraries-test',
+      'type': 'executable',
+      'sources': [
+        'hello.cc',
+      ],
+      'link_settings': {
+        'libraries': [
+          'libcrypto.dylib',
+          'libfl.a',
+        ],
+      },
+    },
+  ],
+}