Introduction
In this article, we will discuss how to ensure that Temurin OpenJDK, an open-source distribution of the Java Development Kit (JDK), uses static libraries during the build process. By default, OpenJDK builds use dynamic libraries, but in certain environments, static libraries are preferred. This guide will walk you through the steps required to build Temurin OpenJDK with static libraries.
Prerequisites
Before we begin, make sure you have the following prerequisites installed:
- Java Development Kit (JDK) 8 or later
- Git
- Make
- GCC
Locating the Temurin OpenJDK Repository
First, clone the Temurin OpenJDK repository from GitHub:
$ git clone https://github.com/adoptopenjdk/openjdk-temurin.git
Ensuring Static Libraries
Temurin OpenJDK includes files named "static-libs" in the build system. However, we cannot assume that these files are used by default, as the hotspot files in OpenJDK may still use dynamic libraries. To ensure that static libraries are used, we need to modify the build configuration.
Configuring the Build
Open the "configure" script using a text editor:
$ cd openjdk-temurin
$ vi configure
Linux and macOS
Locate the following line:
# If you want to use static libraries, uncomment the following line
# and configure with --enable-static
# --enable-static
Uncomment the line and save the file:
$ :wq
Now, configure and build OpenJDK:
$ ./configure --enable-static
$ make
$ make install
Windows
Open the "configure" file using a text editor:
$ cd openjdk-temurin
$ notepad configure.bat
Locate the following line:
rem --enable-static
Remove the "rem" keyword to uncomment the line:
--enable-static
Save the file and run the following commands:
$ msvc /m /x64 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