Install R with homebrew under Montain Lion (Mac OS X 10.8.X)

You need to install gfortran before R. 

$ brew install gfortran

You might find that you don't have XQuartx. Please download and install it at https://xquartz.macosforge.org.

$ brew install R
Unsatisfied dependency: XQuartz
Homebrew does not package XQuartz. Installers may be found at:
https://xquartz.macosforge.org
Error: An unsatisfied requirement failed this build.

After you install XQuartz, you can install R like this:

$ brew install R

Ant 1.8 "warning: 'includeantruntime' was not set, defaulting to build.sysclasspath=last; set to false for repeatable builds"

I installed Ant 1.8 and build Java applications with Ant. Then, I found the following message:

warning: 'includeantruntime' was not set, defaulting to build.sysclasspath=last; set to false for repeatable builds

You can find a good explanation of this warning with following link:

http://ant.1045680.n5.nabble.com/warning-includeantruntime-was-not-set-td2639463.html

There were incompatible change on Ant version 1.8. So, you may find the same message if you build old ant file with Ant 1.8.

Please just add includeantruntime="false" to javac task.