Copy Node Mac build fix from old pull request (#1199)

binding.gyp

@@ -73,6 +73,16 @@
          ]
         ]
       }],
+      ['OS=="mac"', {
+        'xcode_settings': {
+          'MACOSX_DEPLOYMENT_TARGET': '10.9',
+          'OTHER_CFLAGS': [
+            '-fno-strict-aliasing',
+            '-std=c++11',
+            '-stdlib=libc++'
+          ]
+        }
+      }]
     ]
   },
   'targets': [

templates/binding.gyp.template

@@ -75,6 +75,16 @@
            ]
           ]
         }],
+        ['OS=="mac"', {
+          'xcode_settings': {
+            'MACOSX_DEPLOYMENT_TARGET': '10.9',
+            'OTHER_CFLAGS': [
+              '-fno-strict-aliasing',
+              '-std=c++11',
+              '-stdlib=libc++'
+            ]
+          }
+        }]
       ]
     },
     'targets': [