How to Fix Link Error with OpenSSL When Using Cargo Install on Ubuntu

Discover a simple solution to resolve `link errors` related to OpenSSL when installing Rust packages with Cargo on Ubuntu. Learn how to fix it effortlessly!
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Fixing OpenSSL Linking Error During Cargo Install on Ubuntu

Are you struggling with link errors while trying to install Rust packages with Cargo on your Ubuntu system? You’re not alone! Many developers encounter linking issues, especially with OpenSSL libraries when running commands like cargo install cargo-audit. These errors can halt your development workflow and cause frustration. But don’t worry, in this guide, we will dissect the problem and provide a straightforward solution.

Understanding the Problem

When you run the command:

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on Ubuntu (specifically in WSL), you might see an error similar to the one below:

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This error arises because there’s a mismatch or issue with the OpenSSL library linking properly during the compilation process. The output mentions several undefined references which specifically relate to different aspects of the OpenSSL and GLIBC versions installed on your system.

What is Causing the Error?

There could be several causes for this error:

OpenSSL Version Mismatch: The version of OpenSSL installed on your system might not be compatible with your current setup or might not have all the required functionalities.

Linking Issues with GLIBC: The error messages also display issues with references to GLIBC, indicating potential mismatches between required and installed versions.

Configuration Issues with Cargo: Sometimes, Cargo might not automatically link the correct libraries during the compile process, leading to errors.

Solution: Using vendored-openssl Feature

The good news is there’s a quick fix for this! Cargo allows you to specify different features while installing packages. By using the --features vendored-openssl flag, you instruct Cargo to compile OpenSSL itself, ensuring it is correctly linked and compatible with your setup.

Steps to Resolve the Issue

Open your terminal.

Run the following command:

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Wait for the installation to complete.

This command should resolve the linking errors you were experiencing by using the bundled OpenSSL version. Doing this ensures a consistent and compatible library is used during the installation.

Other Considerations

If you continue to encounter issues with other Cargo packages like cargo-tarpaulin or cargo-edit, apply the same vendored-openssl feature as you installed other packages.

Periodically check for updates on both OpenSSL and Cargo. Keeping these tools updated can prevent potential conflicts and linking issues in the future.

If you must use system-wide libraries instead, ensure you’re managing versions correctly and that libraries are appropriately linked in your build configuration.

Conclusion

Facing link errors with OpenSSL when using Cargo on Ubuntu doesn’t have to derail your Rust development. By employing the --features vendored-openssl flag, you can vastly improve your installation experience and avoid compounding issues in your environment. Happy coding!

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