linux – Trying to upgrade CURL manually on Ubuntu 14.04?

I have a particular box that is running Ubuntu 14.04 and can’t be upgraded. I did an “apt update” and then “sudo apt install curl” and it tells me that the version I have installed, version 7.3.5, is already the latest. I need at least version 7.4 to install homebrew. I found this gist that gives a shell script to fetch and build CURL 7.50.2 from source:

https://gist.github.com/fideloper/f72997d2e2c9fbe66459

    # Install any build dependencies needed for curl
    sudo apt-get build-dep curl

    # Get latest (as of Feb 25, 2016) libcurl
    mkdir ~/curl
    cd ~/curl
    wget http://curl.haxx.se/download/curl-7.50.2.tar.bz2
    tar -xvjf curl-7.50.2.tar.bz2
    cd curl-7.50.2

    # The usual steps for building an app from source
    # ./configure
    # ./make
    # sudo make install
    ./configure
    make
    sudo make install

    # Resolve any issues of C-level lib
    # location caches ("shared library cache")
    sudo ldconfig

I created a directory off of my home directory named “curl-update”. I created a shell script in that directory that had the above script as its contents. I then ran it from that same directory and everything downloaded, built, and configure without error. However, when I run “curl –version” I still see 7.3.5. My guess is that although I have a newer version of curl now, it’s files are not in the right place. When I execute “whereis curl” I see this:

curl: /usr/bin/curl /usr/bin/X11/curl /usr/local/bin/curl /usr/include/curl /usr/share/man/man1/curl.1.gz

Do I need to copy the newer CURL files into those directories? Is there a document that tells me how so that I don’t create a mess trying to arbitrarily move files around myself?

Also, I’m a bit worried that using this manually built version may have SSL problems since 14.04 has old SSL libraries that can’t be upgraded. I’ve gotten into trouble with that a few times with newer Python 3.X packages that aren’t compatible with the current SSL libraries on the box. Will this be a problem?