Building Scala 3.x

Building Scala

Below versions of Scala are available in respective distributions at the time of creation of these build instructions:

• RHEL 8.10 has 2.10.6
• SLES 15 SP6 has 2.10.7
• Ubuntu (22.04, 24.04, 24.10) have 2.11.12-5
• Ubuntu 25.04 have 2.11.12-6

The instructions provided below specify the steps to build Scala version 3.3.6 on Linux on IBM Z Systems for following distributions:

• RHEL (8.10, 9.4, 9.5)
• SLES 15 SP6
• Ubuntu (22.04, 24.04, 24.10, 25.04)

General Notes:

• When following the steps below please use a standard permission user unless otherwise specified.
• A directory /<source_root>/ will be referred to in these instructions. This is a temporary writable directory anywhere you'd like to place it.

1. Build and Install Scala

1.1. Install the build dependencies

export SOURCE_ROOT=/<source_root>/

• RHEL (8.10, 9.4, 9.5)

  sudo yum install -y tar wget curl diffutils gcc make
  

• SLES 15 SP6

  sudo zypper install -y wget tar gzip curl gawk gcc make
  

• Ubuntu (22.04, 24.04, 24.10, 25.04)

  sudo apt-get update
  sudo apt-get install -y tar wget curl gzip gcc make
  

1.2. Install java

• With IBM Semeru Runtime (except Ubuntu 25.04)

  • Download and install IBM Semeru Runtime (Java 8 or 11 or 17 or 21) from here.

• With Eclipse Adoptium Temurin Runtime (except Ubuntu 25.04)

  • Download and install Eclipse Adoptium Temurin Runtime (Java 11 or 17 or 21) from here.

• Download and install AdoptOpenJDK8 from here

• With OpenJDK 8

  • RHEL (8.10, 9.4, 9.5)

    sudo yum install -y java-1.8.0-openjdk-devel 

  • SLES 15 SP6

    sudo zypper install -y java-1_8_0-openjdk-devel

  • Ubuntu (22.04, 24.04, 24.10, 25.04)

    sudo apt-get install -y openjdk-8-jdk

• With OpenJDK 11

  • RHEL (8.10, 9.4, 9.5)

    sudo yum install -y java-11-openjdk-devel 

  • SLES 15 SP6

    sudo zypper install -y java-11-openjdk-devel

  • Ubuntu (22.04, 24.04, 24.10, 25.04)

    sudo apt-get install -y openjdk-11-jdk

• With OpenJDK 17

  • RHEL (8.10, 9.4, 9.5)

    sudo yum install -y java-17-openjdk-devel 

  • SLES 15 SP6

    sudo zypper install -y java-17-openjdk java-17-openjdk-devel

  • Ubuntu (22.04, 24.04, 24.10, 25.04)

    sudo apt-get install -y openjdk-17-jdk

• With OpenJDK 21

  • RHEL (8.10, 9.4, 9.5)

    sudo yum install -y java-21-openjdk-devel

  • SLES 15 SP6

    sudo zypper install -y java-21-openjdk java-21-openjdk-devel

  • Ubuntu (22.04, 24.04, 24.10, 25.04)

    sudo apt-get install -y openjdk-21-jdk

Note: At the time of creation of these build instructions, Scala 3.3.6 was verified with OpenJDK 1.8.0, 11.0.27, 17.0.15, 21.0.7 IBM Semeru Runtime Open Edition 1.8.0_452-b09, 11.0.27+6, 17.0.15+6 and 21.0.7+6-LTS OpenJDK Runtime Environment (AdoptOpenJDK)(build 1.8.0_282-b08) Eclipse Adoptium Temurin-11.0.27+6, 17.0.15+6, 21.0.7+6-LTS

1.3. Build libffi library (For AdoptOpenJDK8 on Ubuntu, SLES and RHEL 9.x)

cd $SOURCE_ROOT/
wget ftp://sourceware.org/pub/libffi/libffi-3.2.1.tar.gz
tar xvfz libffi-3.2.1.tar.gz
cd libffi-3.2.1
./configure --prefix=/usr/local
make
sudo make install
sudo ldconfig
sudo ldconfig /usr/local/lib64

1.4. Set Environment Variables

export JAVA_HOME=<Path to Java>
export PATH=$JAVA_HOME/bin:$PATH

1.5. Download and Install Scala

cd $SOURCE_ROOT
wget https://github.com/scala/scala3/releases/download/3.3.6/scala3-3.3.6.tar.gz
tar -xvf scala3-3.3.6.tar.gz
export PATH=$SOURCE_ROOT/scala3-3.3.6/bin:$PATH

Check Scala version by using the following commands

scala -version
scalac -version

Scala code runner version 3.3.6 -- Copyright 2002-2025, LAMP/EPFL
Scala compiler version 3.3.6 -- Copyright 2002-2025, LAMP/EPFL

2. Testing Scala Sample Program (Optional)

2.1. Create a test program

Create a test file called Hello.scala using below command:

echo '@main def hello = println("Hello, world!")' > Hello.scala

2.2. Compile the test program

scalac Hello.scala

Note: This will create several files:

Hello$package$.class
Hello$package.class
Hello$package.tasty
Hello.scala
hello.class
hello.tasty

2.3. Execute the test program

scala hello

The output of the above test program should be:

Hello, world!

Note: For addition information on Getting Started with Scala, visit here

References:

• http://www.scala-lang.org/
• https://docs.scala-lang.org/scala3/book/taste-hello-world.html