added plataform conditions to binding.gyp\nfixed winsdcard.h references on apple platform

binding.gyp

@@ -3,18 +3,35 @@
         {
             'target_name': 'pcsclite',
             'sources': [ 'src/addon.cpp', 'src/pcsclite.cpp', 'src/cardreader.cpp' ],
-            'include_dirs': [
-                '/usr/include/PCSC',
-                '<!(node -e "require(\'nan\')")'
-            ],
-            'link_settings': {
-                'libraries': [
-                  '-lpcsclite'
-                ],
-                'library_dirs': [
-                  '/usr/lib'
-                ]
-            }
+            'cflags': [
+                '-Wall',
+                '-Wextra',
+                '-Wno-unused-parameter',
+                '-fPIC',
+                '-fno-strict-aliasing',
+                '-fno-exceptions',
+                '-pedantic'
+              ],
+            'conditions': [
+                ['OS=="linux"', {
+                    'include_dirs': [
+                        '/usr/include/PCSC',
+                        '<!(node -e "require(\'nan\')")'
+                    ],
+                    'link_settings': {
+                        'libraries': [ '-lpcsclite' ],
+                        'library_dirs': [ '/usr/lib' ]
+                    }
+                }],
+                ['OS=="mac"', {
+                  'libraries': ['-framework', 'PCSC'],
+                  "include_dirs" : [ "<!(node -e \"require('nan')\")" ]
+                }],
+                ['OS=="win"', {
+                  'libraries': ['-lWinSCard'],
+                  "include_dirs" : [ "<!(node -e \"require('nan')\")" ]
+                }]
+            ]
         }
     ]
 }