Football : Too Arrogant to use the Technology!

I enjoyed this from the BBC, however, I have to say Mr Nevin uses sage words almost throughout.

Save for when he says "Too Arrogant to use the technology"... Quite who he is referring to is not clear, UEFA, FIFA, the FA?... Perhaps all of them, whomever it is (or was) we're yet to see this technology, until 2018's World Cup...

Take a look yourself.

http://www.bbc.co.uk/sport/football/39895968

Updated Tutorial - Installing SVN (Subversion) on Ubuntu 14.04 Server

Back in May 2012 I posted a pretty complete tutorial on how to create a virtual VMware machine image for ubuntu, install apache2 and svn upon it, and configure it for access over your LAN.

Tonight, I've just migrated that very installation to a new Ubuntu Server 14.04 installation on a new XenServer.

And I noted I needed to add an extra line of configuration, therefore, I've added a little video note, which also shows the server working for me locally on my LAN:

The original tutorial can be found in it's full glory here: http://megalomaniacbore.blogspot.co.uk/2012/05/virtualizing-installing-and-using.html

Like, Subscribe, Tip if this helps!

GNU C/C++14 Installation & Codeblocks 16.01 from Source (Command Line)

In yesterdays post I explained a C++14 user was having instant issues with the vanilla install of gcc/g++ on Ubuntu 14.04 LTS.

Getting a C++14 Compiler
So, here today are my command-line steps to update the GNU Toolchain v5.x.

sudo add-apt-repository ppa:ubuntu-toolchain-r/test
sudo apt-get update
sudo apt-get install gcc-5 g++-5

If you already have compiler alternatives you may need these lines.

sudo update-alternatives
sudo update-alternatives --remove-all gcc
sudo update-alternatives --remove-all g++

But, everyone will need to swap the default gcc and g++ command-lines to the new paths to make them the defaults.

sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-5 20
sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-5 20
sudo update-alternatives --config gcc
sudo update-alternatives --config g++

These last two --config commands are only needed if you have multiple alterantives, so don't worry if it tells you it's failed as you only have the one.

Now, if you perform g++ --version, you should see it's a version 5.x series compiler.

Codeblocks 16.01
Older versions of Codeblocks may start to error on the code completion with some of the C++14 specific commands.  So, we need install some prerequisites, and then build the latest 16.01 version from source.

sudo apt-get instal gtk+-2.0 automake libtool libwxgtk2.8-dev libwxbase2.8-dev

wget http://sourceforge.net/projects/codeblocks/files/Sources/16.01/codeblocks_16.01.tar.gz

tar -xvf codeblocks_16.01.tar.gz

cd code*

The next step is interesting, we need to iteratively check:

./bootstrap

Running this will show you anything wrong with your machine environment, any missing dependences etc... However, once bootstrap runs cleanly, you can continue below.

./configure
make
sudo make install

The make step takes quite a time, the more cores & RAM you have the better, on an 4 core (8 thread) machine with 8 GB of ram, I've found it takes about 10 minutes.  On a single core machine as the poor VM I had was assigned, it took a lllooooottttt longer.

Once complete we needed to use the text editor of our choice, in sudo mode....

sudo nano /etc/ld.so.conf

And to this we need to add the line:

include /usr/local/lib

Save the file, exit the editor and run:

sudo ldconfig

Once this was complete, we can run up Codeblocks, and see it's version 16.01.

And we can further see the nice new C++14 options in the build options:

Even the code highlighting recognises the make_shared operation:

Voila, if this helped, do check out my other posts, and code, leave a tip with my new tip jar!  And I'll be making a video of this one soon, as it's so useful.