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| post | Installing Erlang 17.0 On Mac OS X | Short description of how to install Erlang/OTP 17.0 using kerl on Mac OS X. | 2014-04-12 21:25:00 CEST | posts |
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It's been a few days since Erlang/OTP 17.0 has been released. Installing 64 Bit Erlang (with Observer support) on Mac OS X has always been a bit tricky, but with 17.0 it has gotten significantly easier.
First you need to install/get some prerequisites:
After you've gotten these three, we start by installing wxWidgets. It's required in order to use the Observer GUI.
{% highlight bash %} brew install wxmac {% endhighlight %}
Compiling wxWidgets might take some time. After it's done, you should create a ~/.kerlrc file. It's basically a configuration file for kerl, which will be used for every Erlang version you compile. You can find the list of available options in the kerl readme. Mine looks like this:
{% highlight bash linenos %} CPPFLAGS="-march=native -mtune=native -O3 -g" KERL_CONFIGURE_OPTIONS="--disable-debug --without-javac --enable-shared-zlib --enable-dynamic-ssl-lib --enable-smp-support --enable-threads --enable-hipe --enable-kernel-poll --enable-darwin-64bit --with-wx" KERL_DEFAULT_INSTALL_DIR="$KERL_BASE_DIR/installs" {% endhighlight %}
We can now move on to actually installing Erlang/OTP 17.0.
{% highlight bash %} kerl update releases kerl build 17.0 17.0 kerl install 17.0 17.0 {% endhighlight %}
After the installation is finished, kerl will output instructions on how to enable a specific Erlang version globally. In general, you will put something like the following in your ~/.zshrc or ~/.bash_profile:
{% highlight bash %} source $HOME/.kerl/installs/17.0/activate {% endhighlight %}
The following alias makes it easier to start the Observer from a terminal. The only command you have to remember is erlobserver.
{% highlight bash %} alias erlobserver='erl -sname observer -run observer -detached' {% endhighlight %}
{% image posts/installing-erlang-17-0-using-kerl-1.png %}