Added support for XP

cmd/helper_windows.go

@@ -2,9 +2,19 @@ package cmd
 
 import (
 	"os/exec"
+	"syscall"
 )
 
 func makeLink(oldPath, newPath string) error {
+	// Check if Windows version is XP.
+
 	cmd := exec.Command("cmd", "/c", "mklink", "/j", newPath, oldPath)
 	return cmd.Run()
 }
+
+func getWindowsVersion() int {
+	dll := syscall.MustLoadDLL("kernel32.dll")
+	p := dll.MustFindProc("GetVersion")
+	v, _, _ := p.Call()
+	return v
+}

gopm.go

@@ -18,6 +18,7 @@ package main
 import (
 	"os"
 	"runtime"
+	"time"
 
 	"github.com/codegangsta/cli"
 
@@ -60,5 +61,6 @@ func main() {
 		cmd.CmdInstall,
 		//cmd.CmdTest,
 	}
+	app.Compiled = time.Now()
 	app.Run(os.Args)
 }