Error building on macOS

[mwbailey]

Tried testing the SDK with a simple example program:

package main

import (
	"fmt"
	"github.com/XDCFoundation/XDC3Go/XRC20"
)

func main() {
	CreateAccount1 := XRC20.CreateAccount()
	fmt.Println("CreateAccount Private key :", CreateAccount1)
}

Whether I install with go get github.com/XDCFoundation/XDC3Go or clone the XDC3Go repo, I get the following build errors:

$ go build ./...
# github.com/XDCFoundation/XDC3Go/p2p/netutil
../../go/pkg/mod/github.com/!x!d!c!foundation/!x!d!c3!go@v0.0.0-20210823111048-22e1e423c11f/p2p/netutil/error.go:24:38: undefined: isPacketTooBig
# github.com/XDCFoundation/XDC3Go/metrics
../../go/pkg/mod/github.com/!x!d!c!foundation/!x!d!c3!go@v0.0.0-20210823111048-22e1e423c11f/metrics/cpu_enabled.go:42:21: undefined: getProcessCPUTime

It looks like the problem is build constraints that prevent some files from being compiled on non-Windows systems.

The "toobig_windows.go" file won't be compiled with the package because of the "windows" build tag (and also file suffix), so isPacketTooBig is undefined on macOS.

getProcessCPUTime is undefined because of the "windows" file suffix in "cpu_windows.go".