Coding⏱️ 3 min read📅 2026-06-15

How to Fix: cmake error encountered when build clang-query

CMake error fix for clang-query build issue.

Quick Answer: Run cmake in the project directory (e.g., ~/myllvm/llvm/tools/clang/tools/extra/clang-query) and specify the target executable (e.g., cmake . --build .)

📋 Table of Contents

  1. ⚠️ Common Causes
  2. ✅ Best Solutions to Fix It
  3. ✨ Wrapping Up

When building clang-query, you may encounter an error due to a missing CMake command. This issue affects users who are trying to compile clang-query using CMake.

This error can be frustrating as it prevents the compilation process from completing successfully. However, with the right steps, you should be able to resolve this issue and continue building clang-query.

⚠️ Common Causes

  • The primary reason for this error is that the CMakeLists.txt file is missing the cmake_minimum_required command. This command specifies the minimum version of CMake required to build the project.
  • If you are using an older version of CMake, you may need to update your CMake installation or use a compatible version of CMake.

✅ Best Solutions to Fix It

Updating CMake Minimum Version

  1. Step 1: Open the CMakeLists.txt file in your preferred text editor.
  2. Step 2: Add the following line at the top of the file: cmake_minimum_required(VERSION 3.13)
  3. Step 3: Save the changes and proceed with the next step.

Using a Compatible Version of CMake

  1. Step 1: Check your CMake installation version by running the command "cmake --version" in your terminal.
  2. Step 2: If you are using an older version, download and install the latest version of CMake from the official website.

✨ Wrapping Up

Once you have updated or installed a compatible version of CMake, re-run the cmake command to build clang-query. If you encounter any further issues, refer to the official CMake documentation or seek assistance from the LLVM community forums.

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