MacPorts で Scala 2.8 のインストール

port install

Scala2.8 から scala27 と scala28 の 2つが選べるようになってます。

port search scala

scala27 @2.7.7 (lang, java)
    The Scala Programming Language

scala28 @2.8.0 (lang, java)
    The Scala Programming Language

scala28 をインストール。

sudo port install scala28

$ scala-2.8 -version
Scala code runner version 2.8.0.final -- Copyright 2002-2010, LAMP/EPFL

ソフトリンク変更

/usr/local/bin にソフトリンク作ります。

$ which scala-2.8
/opt/local/bin/scala-2.8

えい。

sudo ln -s /opt/local/bin/scala-2.8 /usr/local/bin/scala
sudo ln -s /opt/local/bin/scalac-2.8 /usr/local/bin/scalac
sudo ln -s /opt/local/bin/scaladoc-2.8 /usr/local/bin/scaladoc
sudo ln -s /opt/local/bin/scalap-2.8 /usr/local/bin/scalap
sudo ln -s /opt/local/bin/fsc-2.8 /usr/local/bin/fsc
sudo ln -s /opt/local/bin/sbaz-2.8 /usr/local/bin/sbaz
sudo ln -s /opt/local/bin/sbaz-setup-2.8 /usr/local/bin/sbaz-setup

$ scala -version
Scala code runner version 2.8.0.final -- Copyright 2002-2010, LAMP/EPFL

おけ。

REPL(Read-Eval-Print-Loop)で確認

$ scala
Welcome to Scala version 2.8.0.final (Java HotSpot(TM) Client VM, Java 1.5.0_24).
Type in expressions to have them evaluated.
Type :help for more information.

scala> println("Hello Scala!")
Hello Scala!