Resolving fatal error: opensslconf-i386.h During Jenkins Builds on RHEL 7.9

Struggling with a Jenkins build error on RHEL 7.9? Learn how to fix the `fatal error: opensslconf-i386.h` issue quickly with our step-by-step guide.
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Fixing the Jenkins Build Error: fatal error: opensslconf-i386.h on RHEL 7.9

If you're a developer or system administrator working with Jenkins and RHEL 7.9, you may have encountered the frustrating build error stating:

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This error can halt your continuous integration process, leading to delays and frustration. Thankfully, resolving this issue is straightforward once you understand what’s causing it. In this guide, we’ll walk through the problem and its solution step-by-step.

Understanding the Problem

In Jenkins, executing a build in a RHEL 7.9 environment can require specific dependencies. The error you encountered indicates that a crucial component, opensslconf-i386.h, is missing on your machine. Here are some details about the error:

Error Message: The compiler cannot find the file opensslconf-i386.h, which is necessary for your Jenkins build.

Failed Command: The command that triggered this error was sudo make package ARCH=linux_32.

If you're trying to compile or package software for a 32-bit architecture (i386) in a 64-bit environment, you must ensure that the correct libraries and development files for that architecture are installed.

Steps to Resolve the Issue

To fix the fatal error: opensslconf-i386.h issue, follow these steps:

1. Install the Required Development Package

The error arises primarily because your system lacks the necessary development files for OpenSSL in the i386 architecture. Instead of attempting to install libssl-dev:i386, which is not available on RHEL, you should install the appropriate package as follows:

Open your terminal and run the following command:

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2. Verify the Installation

After running the installation command, you should ensure that the package installed correctly. You can verify by checking the installation with:

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This command will list the installed OpenSSL development libraries. If you see openssl-devel.i686, then the installation was successful.

3. Rerun Your Jenkins Build

After confirming that openssl-devel.i686 is installed, return to your Jenkins pipeline and rerun the build command that previously failed:

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4. Confirm Success

Once the build completes successfully without any errors related to opensslconf-i386.h, you have successfully resolved the issue! Congratulations!

Conclusion

Encountering build errors can be daunting, especially when working with continuous integration systems like Jenkins. The great news is that many of these issues, including the fatal error: opensslconf-i386.h, can often be resolved by properly installing the necessary development libraries. By following the steps outlined in this guide, you can get back on track with your Jenkins builds in RHEL 7.9.

Should you have any further questions or encounter additional issues, feel free to reach out in the comments below. Happy coding!