CMake deprecation warning (cmake_minimum_required < 3.10) when building on Windows #608
Description
Describe the bug
When building a Flutter app for Windows using pdfx, a CMake deprecation warning appears.
To Reproduce
Run:
flutter run -d windows
Expected behavior
No CMake deprecation warnings.
Actual behavior
The following warning appears:
CMake Deprecation Warning at CMakeLists.txt:4 (cmake_minimum_required):
Compatibility with CMake < 3.10 will be removed from a future version of CMake.
Investigation
The issue comes from a generated file:
build/windows/x64/pdfium-download/CMakeLists.txt
It contains:
cmake_minimum_required(VERSION 2.8.12)
This file is generated via DownloadProject.cmake when fetching pdfium.
Environment
- pdfx: 2.9.2
- Flutter: 3.41.5
- Dart: 3.11.3
- Windows
- Visual Studio 2026 (CMake included)
Additional context
The build succeeds and PDF rendering works correctly, but the warning appears on every build.
Is there a plan to update the minimum CMake version to avoid this warning?