define build system on Windows

Author: cmb69

win32/build/confutils.js

@@ -126,6 +126,13 @@ build_dirs = new Array();
 extension_include_code = "";
 extension_module_ptrs = "";
 
+(function () {
+	var wmiservice = GetObject("winmgmts:{impersonationLevel=impersonate}!\\\\.\\root\\cimv2");
+	var oss = wmiservice.ExecQuery("Select * from Win32_OperatingSystem");
+	var os = oss.ItemIndex(0);
+	AC_DEFINE("PHP_BUILD_SYSTEM", os.Caption + " [" + os.Version + "]", "Windows build system version");
+}());
+
 if (!MODE_PHPIZE) {
 	get_version_numbers();
 }