Static build for Linux?

Could you build wallet for Linux as static?

I have Linux Mint 19.3 (Ubuntu 18.04 based) and I cannot start the wallet:

```
$ ./goXdagWallet 
./goXdagWallet: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.33' not found (required by ./goXdagWallet)
./goXdagWallet: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.32' not found (required by ./goXdagWallet)
```