Create an alias on the fly?

[Jeffrey Walton]

Hi Everyone,

I'm testing some software from Master. My testing machines sometimes
lack the distro tools like makeinfo. It results in things like this:

    ./bootstrap: 255: makeinfo: not found
    ./bootstrap: Error: 'makeinfo' not found

I tried the MAKEINFO=true tricks but they did not work.

How can I create an alias on the fly using code like this in Bash?

    if ! ./bootstrap;
    then
        echo "Failed to bootstrap Wget2"
        exit 1
    fi

Thanks in advance.