compilation issues on windows #32280

C:\Repos\leo-editor>python --version
Python 3.15.0rc2

C:\Repos\leo-editor>python -m pip --version
pip 26.2.1 from C:\Users\Dev\AppData\Local\Python\pythoncore-3.15-64\Lib\site-packages\pip (python 3.15)

C:\Repos\leo-editor>pymanager list
Tag               Name                  Managed By  Version    Alias
3.14[-64]         Python 3.14.7         PythonCore  3.14.7     python3[-64].exe, python3.14[-64].exe
3.15-dev[-64]  *  Python 3.15.0rc2      PythonCore  3.15.0rc2  python3.15[-64].exe

* These runtimes were found, but cannot be updated or uninstalled. *
3.14              Python 3.14 (64-bit)  PythonCore  3.14.0

C:\Repos\leo-editor>pip install matplotlib

C:\Repos\leo-editor>python -m pip install matplotlib
Collecting matplotlib
  Using cached matplotlib-3.11.1.tar.gz (32.6 MB)
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Installing backend dependencies ... done
  Preparing metadata (pyproject.toml) ... error
  error: subprocess-exited-with-error

  × Preparing metadata (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [26 lines of output]
      + meson setup C:\Users\Dev\AppData\Local\Temp\pip-install-oxna0ea1\matplotlib_243dd82d1a9540958c9068f5a4c9a018 C:\Users\Dev\AppData\Local\Temp\pip-install-oxna0ea1\matplotlib_243dd82d1a9540958c9068f5a4c9a018\.mesonpy-08th9gvk -Dbuildtype=release -Db_ndebug=if-release -Db_vscrt=md --native-file=C:\Users\Dev\AppData\Local\Temp\pip-install-oxna0ea1\matplotlib_243dd82d1a9540958c9068f5a4c9a018\.mesonpy-08th9gvk\meson-python-native-file.ini
      The Meson build system
      Version: 1.12.0
      Source dir: C:\Users\Dev\AppData\Local\Temp\pip-install-oxna0ea1\matplotlib_243dd82d1a9540958c9068f5a4c9a018
      Build dir: C:\Users\Dev\AppData\Local\Temp\pip-install-oxna0ea1\matplotlib_243dd82d1a9540958c9068f5a4c9a018\.mesonpy-08th9gvk
      Build type: native build
      Program python found: YES 3.15.0 3.15.0
      Project name: matplotlib
      Project version: 3.11.1
      C compiler for the host machine: cc (gcc 13.1.0 "cc (Rev7, Built by MSYS2 project) 13.1.0")
      C linker for the host machine: cc ld.bfd 2.40
      C++ compiler for the host machine: c++ (gcc 13.1.0 "c++ (Rev7, Built by MSYS2 project) 13.1.0")
      C++ linker for the host machine: c++ ld.bfd 2.40
      Host machine cpu family: x86_64
      Host machine cpu: x86_64
      Program python found: YES (C:\Users\Dev\AppData\Local\Python\pythoncore-3.15-64\python.exe)
      Run-time dependency python found: YES 3.15
      Found pkg-config: YES (C:\msys64\ucrt64\bin\pkg-config.exe) 1.9.5
      pybind11-config found: YES (C:\Users\Dev\AppData\Local\Temp\pip-build-env-0bch1n7_\overlay\Scripts\pybind11-config.exe) 3.1.0
      Run-time dependency pybind11 found: YES 3.1.0
      Downloading freetype2 source from https://download.savannah.nongnu.org/releases/freetype/freetype-2.14.3.tar.xz
      Applying diff file "freetype-2.14.1-static-harfbuzz.patch"

      ..\extern\meson.build:12:18: ERROR: Command 'C:\\Scripts\\patch.cmd --version' failed with status 1.

      A full log can be found at C:\Users\Dev\AppData\Local\Temp\pip-install-oxna0ea1\matplotlib_243dd82d1a9540958c9068f5a4c9a018\.mesonpy-08th9gvk\meson-logs\meson-log.txt
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> matplotlib

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.

C:\Repos\leo-editor>