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

xpcom/io/FileUtilsWin.cpp

@@ -4,7 +4,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #include "FileUtilsWin.h"
-
+#include <stdlib.h>
 #include <windows.h>
 #include <psapi.h>
 

xpcom/io/FileUtilsWin.h

@@ -6,6 +6,7 @@
 #ifndef mozilla_FileUtilsWin_h
 #define mozilla_FileUtilsWin_h
 
+#include <stdlib.h>
 #include <windows.h>
 
 #include "mozilla/Scoped.h"

xpcom/io/SpecialSystemDirectory.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 "SpecialSystemDirectory.h"
 #include "nsString.h"
 #include "nsDependentString.h"
@@ -10,9 +11,9 @@
 
 #if defined(XP_WIN)
 
+#include <stdlib.h>
 #include <windows.h>
 #include <shlobj.h>
-#include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
 #include <direct.h>

xpcom/io/nsAppFileLocationProvider.cpp

@@ -19,11 +19,11 @@
 #include <Carbon/Carbon.h>
 #include "nsILocalFileMac.h"
 #elif defined(XP_WIN)
+#include <stdlib.h>
 #include <windows.h>
 #include <shlobj.h>
 #elif defined(XP_UNIX)
 #include <unistd.h>
-#include <stdlib.h>
 #include <sys/param.h>
 #endif
 

xpcom/io/nsDirectoryService.cpp

@@ -19,9 +19,9 @@
 #include "nsIStringEnumerator.h"
 
 #if defined(XP_WIN)
+#include <stdlib.h>
 #include <windows.h>
 #include <shlobj.h>
-#include <stdlib.h>
 #include <stdio.h>
 #elif defined(XP_UNIX)
 #include <unistd.h>

xpcom/io/nsLocalFileWin.cpp

@@ -29,16 +29,16 @@
 #include "nsReadableUtils.h"
 
 #include <direct.h>
-#include <windows.h>
+#include <stdlib.h>
 #include <shlwapi.h>
 #include <aclapi.h>
+#include <windows.h>
 
 #include "shellapi.h"
 #include "shlguid.h"
 
 #include  <io.h>
 #include  <stdio.h>
-#include  <stdlib.h>
 #include  <mbstring.h>
 
 #include "nsXPIDLString.h"

xpcom/io/nsNativeCharsetUtils.cpp

@@ -9,7 +9,7 @@
 // Windows
 //-----------------------------------------------------------------------------
 #if defined(XP_WIN)
-
+#include <stdlib.h>
 #include <windows.h>
 #include "nsString.h"
 #include "nsAString.h"