Add support for compiling under MinGW + fix Windows compiling in general

widget/windows/AudioSession.cpp

@@ -4,6 +4,7 @@
  * 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/. */
 
+#include <stdlib.h>
 #include <windows.h>
 #include <audiopolicy.h>
 #include <mmdeviceapi.h>

widget/windows/JumpListBuilder.h

@@ -6,6 +6,8 @@
 #ifndef __JumpListBuilder_h__
 #define __JumpListBuilder_h__
 
+#include <stdlib.h>
+
 #include <windows.h>
 
 #undef NTDDI_VERSION

widget/windows/TaskbarPreview.cpp

@@ -4,6 +4,7 @@
  * 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/. */
 
+#include <stdlib.h>
 #include "TaskbarPreview.h"
 #include <nsITaskbarPreviewController.h>
 #include <windows.h>

widget/windows/WinTaskbar.cpp

@@ -4,6 +4,7 @@
  * 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/. */
 
+#include <stdlib.h>
 #include "WinTaskbar.h"
 #include "TaskbarPreview.h"
 #include <nsITaskbarPreviewController.h>

widget/windows/WinUtils.h

@@ -39,7 +39,7 @@
 
 // Starting with version 10.0.22621.0 of the Windows SDK the AR_STATE enum and
 // types are only defined when building for Windows 8 instead of Windows 7.
-#if (WDK_NTDDI_VERSION >= 0x0A00000C) && (WINVER < 0x0602)
+#if (WDK_NTDDI_VERSION >= 0x0A00000C) && (WINVER < 0x0602) && !defined(MOZ_AR_STATE_DEFINED)
 
 enum tagAR_STATE {
   AR_ENABLED = 0x0,
@@ -57,6 +57,8 @@ typedef enum tagAR_STATE AR_STATE;
 
 using PAR_STATE = enum tagAR_STATE*;
 
+#define MOZ_AR_STATE_DEFINED 1
+
 #endif  // (WDK_NTDDI_VERSION >= 0x0A00000C) && (WINVER < 0x0602)
 
 /**

widget/windows/WindowsUIUtils.cpp

@@ -3,6 +3,7 @@
  * 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/. */
 
+#include <stdlib.h>
 #include <windows.h>
 #include <winsdkver.h>
 #include "mozwrlbase.h"

widget/windows/nsFilePicker.h

@@ -7,6 +7,7 @@
 #ifndef nsFilePicker_h__
 #define nsFilePicker_h__
 
+#include <stdlib.h>
 #include <windows.h>
 
 // For Vista IFileDialog interfaces which aren't exposed

widget/windows/nsLookAndFeel.h

@@ -42,6 +42,7 @@ typedef enum _AR_STATE
   AR_DOCKED         = 0x40,
   AR_LAPTOP         = 0x80
 } AR_STATE, *PAR_STATE;
+#define MOZ_AR_STATE_DEFINED 1
 #endif
 
 class nsLookAndFeel: public nsXPLookAndFeel {