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' ],
+            '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'
-                ]
+                        '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')\")" ]
+                }]
+            ]
         }
     ]
 }

src/cardreader.h

@@ -3,9 +3,14 @@
 
 #include <nan.h>
 #include <node_version.h>
-#include <winscard.h>
 #include <string>
 #include <pthread.h>
+#ifdef __APPLE__
+#include <PCSC/winscard.h>
+#include <PCSC/wintypes.h>
+#else
+#include <winscard.h>
+#endif
 
 static v8::Persistent<v8::String> name_symbol;
 static v8::Persistent<v8::String> connected_symbol;

src/pcsclite.h

@@ -2,8 +2,12 @@
 #define PCSCLITE_H
 
 #include <nan.h>
-
+#ifdef __APPLE__
+#include <PCSC/winscard.h>
+#include <PCSC/wintypes.h>
+#else
 #include <winscard.h>
+#endif
 
 class PCSCLite: public node::ObjectWrap {