Fix compilation on MinGW

On MinGW _WIN32_WINNT needs to be 0x501 (Windows XP) instead of 0x500 (Windows 2000) for some TCP/IP API's to be present.

MinGW uses stdint.h whereas Visual C++ does not.
Review URL: http://codereview.chromium.org/113576

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1999 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

include/v8.h

@@ -41,6 +41,10 @@
 #include <stdio.h>
 
 #ifdef _WIN32
+// When compiling on MinGW stdint.h is available.
+#ifdef __MINGW32__
+#include <stdint.h>
+#else  // __MINGW32__
 typedef signed char int8_t;
 typedef unsigned char uint8_t;
 typedef short int16_t;  // NOLINT
@@ -49,7 +53,8 @@ typedef int int32_t;
 typedef unsigned int uint32_t;
 typedef __int64 int64_t;
 typedef unsigned __int64 uint64_t;
-// intptr_t is defined in crtdefs.h through stdio.h.
+// intptr_t and friends are defined in crtdefs.h through stdio.h.
+#endif  // __MINGW32__
 
 // Setup for Windows DLL export/import. When building the V8 DLL the
 // BUILDING_V8_SHARED needs to be defined. When building a program which uses

src/platform-win32.cc

@@ -58,6 +58,12 @@
 
 #include <time.h>  // For LocalOffset() implementation.
 #include <mmsystem.h>  // For timeGetTime().
+#ifdef __MINGW32__
+// Require Windows XP or higher when compiling with MinGW. This is for MinGW
+// header files to expose getaddrinfo.
+#undef _WIN32_WINNT
+#define _WIN32_WINNT 0x501
+#endif  // __MINGW32__
 #ifndef __MINGW32__
 #include <dbghelp.h>  // For SymLoadModule64 and al.
 #endif  // __MINGW32__