sal,sd: use newer InetPtonW API when not building for WinXP target

... i.e. decide based on target instead of SDK version.

Change-Id: I225588d34f961c19e223ed9c1b9a934cd5196cf7

sal/osl/w32/socket.cxx

@@ -585,7 +585,7 @@ oslSocketAddr SAL_CALL osl_createInetBroadcastAddr (
     if (strDottedAddr && strDottedAddr->length)
     {
 // the Win32 SDK 8.1 deprecates inet_addr()
-#ifdef _WIN32_WINNT_WINBLUE
+#if _WIN32_WINNT >= _WIN32_WINNT_VISTA
         IN_ADDR addr;
         INT ret = InetPtonW(AF_INET, strDottedAddr->buffer, & addr);
         if (1 == ret)
@@ -648,7 +648,7 @@ oslSocketAddr SAL_CALL osl_createInetSocketAddr (
     sal_uInt32 Addr;
 
 // the Win32 SDK 8.1 deprecates inet_addr()
-#ifdef _WIN32_WINNT_WINBLUE
+#if _WIN32_WINNT >= _WIN32_WINNT_VISTA
     IN_ADDR addr;
     INT ret = InetPtonW(AF_INET, strDottedAddr->buffer, & addr);
     Addr = ret == 1 ? addr.S_un.S_addr : OSL_INADDR_NONE;

sd/source/ui/remotecontrol/DiscoveryService.cxx

@@ -123,7 +123,7 @@ void DiscoveryService::setupSockets()
     struct ip_mreq multicastRequest;
 
 // the Win32 SDK 8.1 deprecates inet_addr()
-#ifdef _WIN32_WINNT_WINBLUE
+#if _WIN32_WINNT >= _WIN32_WINNT_VISTA
     IN_ADDR addr;
     OUString const saddr("239.0.0.1");
     INT ret = InetPtonW(AF_INET, saddr.getStr(), & addr);