Скачать или смотреть Resolving the BFD Library Not Found Error in C+ + on Ubuntu

Learn how to fix the `BFD Library Not Found` error when compiling your C+ + program on Ubuntu by linking the correct library.
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This video is based on the question https://stackoverflow.com/q/62987448/ asked by the user 'Ladessa' ( https://stackoverflow.com/u/1303658/ ) and on the answer https://stackoverflow.com/a/62987605/ provided by the user 'grizzlybears' ( https://stackoverflow.com/u/1455234/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Fix the BFD Library Not Found Error in C+ + on Ubuntu

If you’re working with C+ + on Ubuntu, it’s common to encounter certain errors, especially when it comes to linking libraries. One such issue is the dreaded BFD Library not found error. This error arises when the compiler cannot find the necessary functions defined in the Binary File Descriptor library (libbfd) while trying to compile your program. In this post, we’ll explore what causes this issue and how to resolve it effectively.

Understanding the Problem

When you attempt to compile your program using the command:

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You may encounter error messages similar to the following:

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These errors indicate that the linker cannot find the definitions for the functions bfd_get_error and bfd_errmsg, which are part of the libbfd library. It means that while the compiler processed your source code, it didn't link the object files against the necessary libraries.

Step-by-Step Solution

To resolve this issue, follow these steps:

Step 1: Ensure binutils-dev is Installed

Firstly, ensure that you have the binutils-dev package installed, which includes the header files and libraries for libbfd. You can check if it’s installed and if it's the latest version by running:

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The output should confirm that it’s already installed (as shown in your initial error message):

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Step 2: Modify the Compilation Command

The critical step is to link the library when running the compilation command. Modify your command to include the -lbfd flag which tells the compiler to link against the libbfd library.

The adjusted command should look like this:

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Step 3: Compile and Resolve Any Additional Errors

After running the modified command, observe if there are any further error messages. If you encounter similar linker errors for other functions, you may need to additionally link other libraries related to libbfd, such as -liberty. This can typically be done by:

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Step 4: Test Your Program

Once the compilation is successful, run your program to ensure everything works as expected. This should resolve the BFD Library not found issue, allowing you to utilize the functions from libbfd without any linker errors.

Conclusion

Linking libraries is a critical step in the C+ + compilation process that can often lead to unforeseen errors if not done correctly. By following the steps outlined above, you should be able to effectively resolve the BFD Library not found error and continue with your development work on Ubuntu.

If you have any further questions or encounter other issues while working with C+ + , feel free to reach out or leave a comment below!