--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/tesseract/.github/workflows/unittest.yml	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,85 @@
+name: unittest
+# autotools build on ubuntu. unittests with address sanitizers. with openmp.
+# ubuntu-20.04-gcc-unittest - CI runs out of diskspace.
+on:
+  #push:
+  schedule:
+    - cron: 0 0 * * *
+  workflow_dispatch:
+
+jobs:
+  sanitizers:
+    name: ${{ matrix.config.name }}
+    runs-on: ${{ matrix.config.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+          - { name: ubuntu-20.04-gcc-unittest, os: ubuntu-20.04, cxx: g++, cxxflags: '-g -O2 -fsanitize=address,undefined' }
+          - { name: ubuntu-22.04-clang-unittest, os: ubuntu-22.04, cxx: clang++, cxxflags: '-g -O2 -fsanitize=address,undefined -stdlib=libc++' }
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        submodules: recursive
+
+    - name: Remove Homebrew, Android and .NET to provide more disk space
+      run: |
+           # https://github.com/actions/virtual-environments/issues/2606#issuecomment-772683150
+           sudo rm -rf /home/linuxbrew # will release Homebrew
+           sudo rm -rf /usr/local/lib/android # will release about 10 GB if you don't need Android
+           sudo rm -rf /usr/share/dotnet # will release about 20GB if you don't need .NET
+
+    - name: Install dependencies (Linux)
+      run: |
+           sudo apt-get update
+           sudo apt-get install autoconf libleptonica-dev libpango1.0-dev -y
+           sudo apt-get install cabextract -y
+
+    - name: Setup
+      run: |
+           ./autogen.sh
+
+    - name: Configure (Linux)
+      run: |
+           ./configure '--disable-shared' 'CXX=${{ matrix.config.cxx }}' \
+               'CXXFLAGS=${{ matrix.config.cxxflags }}'
+
+    - name: Make and Install Tesseract
+      run: |
+           ${{ matrix.config.cxx }} --version
+           make
+           sudo make install
+
+    - name: Make and Install Training Tools
+      run: |
+           make training
+           sudo make training-install
+
+    - name: Display Tesseract and Training Tools Version
+      run: |
+           tesseract -v
+           lstmtraining -v
+           text2image -v
+      if: success() || failure()
+
+    - name: Download fonts, tessdata and langdata required for tests
+      run: |
+           git clone https://github.com/egorpugin/tessdata tessdata_unittest
+           cp tessdata_unittest/fonts/* test/testing/
+           mv tessdata_unittest/* ../
+
+    - name: Run Tesseract on phototest.tif and devatest.png
+      run: |
+           tesseract test/testing/phototest.tif -  --tessdata-dir ../tessdata
+           tesseract test/testing/devatest.png - -l hin+eng  --tessdata-dir ../tessdata
+
+    - name: Make and run Unit Tests
+      run: |
+           make check
+
+    - name: Display Unit Tests Report and Compiler Version
+      run: |
+           cat test-suite.log
+           ${{ matrix.config.cxx }} --version
+           git log -3 --pretty=format:'%h %ad %s | %an'
+      if: always()