Merge pull request #340 from sgraham/fix-win-build

fix win32 compile, fix BuildLogTest.WriteRead on 2nd run

diff --cc configure.py
Simple merge

diff --cc src/win32port.h
index 97bf817,3799af1..ce3c949
--- 1/src/win32port.h
--- 2/src/win32port.h
+++ b/src/win32port.h
@@@ -14,7 -14,10 +14,9 @@@
  
  #ifndef NINJA_WIN32PORT_H_
  #define NINJA_WIN32PORT_H_
 -#pragma once
  
+ typedef signed short int16_t;
+ typedef unsigned short uint16_t;
  /// A 64-bit integer type
  typedef signed long long int64_t;
  typedef unsigned long long uint64_t;