Software⏱️ 3 min read📅 2026-06-19

How to Fix: An error during bochsdbg installation

Error during bochsdbg installation resolved by enabling bxlex compilation.

Quick Answer: Enable bxlex compilation by adding --enable-bxlex to the ./configure command.

The error 'undefined reference to bxlex' occurs during the compilation of Bochs debugger, which affects users who are trying to install and use the software for kernel debugging.

This issue can be frustrating as it prevents users from completing the installation process and using the Bochs debugger. However, with a step-by-step guide, you can resolve this error and successfully install the Bochs debugger.

🛑 Root Causes of the Error

  • The primary reason for this error is that the bxlex library, which is required by the Bochs debugger, is not being linked correctly during compilation. This is often due to missing or incorrect dependencies in the system.
  • An alternative reason could be that the 'bxlex' library itself is not available or installed on the system.

🔧 Proven Troubleshooting Steps

Resolving Missing Dependencies

  1. Step 1: Step 1: Check if the required dependencies are installed by running the command 'dpkg --list | grep bxlex'. If the package is not found, install it using 'sudo apt-get install libbx-lex-dev'.
  2. Step 2: Step 2: Verify that the 'bxlex' library is being linked correctly during compilation by checking the Makefile or configuration files. Ensure that the 'bxlex' library is included in the list of dependencies.
  3. Step 3: Step 3: Re-run the 'make' command to recompile the Bochs debugger with the corrected dependencies.

Resolving Missing bxlex Library

  1. Step 1: Step 1: Check if the 'bxlex' library is available on the system by searching for it using a package manager or by checking online repositories.
  2. Step 2: Step 2: If the 'bxlex' library is not available, download and install it from an official source. Be cautious of downloading libraries from unofficial sources to avoid potential security risks.

🎯 Final Words

By following these steps, you should be able to resolve the 'undefined reference to bxlex' error and successfully install the Bochs debugger for kernel debugging.

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