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Freetype has been found when there are no freetype in environment (Windows) #492

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@asenyaev

Description

@asenyaev

Actual behaviour

I have faced the issue when I do not have pre-installed freetype in my environment, but during a build cmake finds it and try to build the project with it.
The log during the configuration:

  -- Checking for module 'freetype2'  --   Found freetype2, version 23.0.17  CMake Warning at C:/Users/runneradmin/AppData/Local/Temp/pip-req-build-egif0lkt/opencv/cmake/OpenCVUtils.cmake:882 (message):    ocv_check_modules(FREETYPE): can't find library 'freetype'.  Specify    'pkgcfg_lib_FREETYPE_freetype' manually  Call Stack (most recent call first):    C:/Users/runneradmin/AppData/Local/Temp/pip-req-build-egif0lkt/opencv_contrib/modules/freetype/CMakeLists.txt:6 (ocv_check_modules)

And the log during the build:

  LINK : fatal error LNK1181: cannot open input file 'freetype.lib' [C:\Users\runneradmin\AppData\Local\Temp\pip-req-build-egif0lkt\_skbuild\win32-3.6\cmake-build\modules\python3\opencv_python3.vcxproj]

Steps to reproduce

  • example code:

Run building a wheel command in the root directory of opencv-python repository with the following environment variables:
SDIST=0
ENABLE_HEADLESS=0
ENABLE_CONTRIB=1

python -m pip wheel --wheel-dir=%cd%\wheelhouse . --verbose
  • operating system: Windows x86 / x64
  • architecture (e.g. x86)
  • opencv-python version: 4.5.2
  • branch: master
Issue submission checklist
  • This is not a generic OpenCV usage question (looking for help for coding, other usage questions, homework etc.)
  • I have read the README of this repository and understand that this repository provides only an automated build toolchain for OpenCV Python packages (there is no actual OpenCV code here)
  • The issue is related to the build scripts in this repository, to the pre-built binaries or is a feature request (such as "please enable this additional dependency")
  • I'm using the latest version ofopencv-python
How to temporary fix it

I have added the flag-DBUILD_opencv_freetype=OFF to suppress freetype and to build without it.

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