AZTEC/PDF417: stripf ecc feedback (was getting 32-bit difference)

test suite: test for `arc4random_uniform()` before including
  "test_bwipp" & "test_random" in build
github/ci: try enabling Qt test for ubuntu

.github/workflows/ci.yml

@@ -1,7 +1,8 @@
 name: CI
 
+# .github/workflows/ci.yml 2025-05-24
 # Controls when the action will run. Triggers the workflow on push or pull request
-# events but only for the master branch
+# events but only for the master branch (or test branch github_ci push)
 on:
   push:
     branches: [ master, github_ci ]
@@ -19,7 +20,7 @@ jobs:
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
     # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: Install libpng-dev
       run: sudo apt-get install libpng-dev
@@ -28,30 +29,30 @@ jobs:
       shell: bash
       run: sudo locale-gen de_DE.UTF-8 && sudo update-locale
 
+    - name: Install Qt5
+      uses: jurplel/install-qt-action@v4
+      with:
+        version: 5.15.2
+        dir: .
+
     - name: Create Build Environment
-      # Some projects don't allow in-source building, so create a separate build directory
-      # We'll use this as our working directory for all subsequent commands
-      run: cmake -E make_directory ${{runner.workspace}}/build
+      shell: bash
+      run: git config --global --add safe.directory ${GITHUB_WORKSPACE} && cmake -E make_directory build
 
     - name: Configure CMake
-      working-directory: ${{runner.workspace}}/build
-      # Use a bash shell so we can use the same syntax for environment variable
-      # access regardless of the host operating system
+      working-directory: build
       shell: bash
-      run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DZINT_TEST=ON -DZINT_STATIC=ON -DZINT_USE_QT=OFF
+      run: CMAKE_PREFIX_PATH=$QT_ROOT_DIR cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DZINT_TEST=ON -DZINT_STATIC=ON
 
     - name: Build
-      working-directory: ${{runner.workspace}}/build
+      working-directory: build
       shell: bash
-      # Execute the build.  You can specify a specific target with "--target <NAME>"
       run: cmake --build . -j8 --config $BUILD_TYPE
 
     - name: Test
-      working-directory: ${{runner.workspace}}/build
+      working-directory: build
       shell: bash
-      # Execute tests defined by the CMake configuration.
-      # See https://cmake.org/cmake/help/latest/manual/ctest.1.html for more detail
-      run: LD_LIBRARY_PATH=$LD_LIBRARY_PATH:"$(pwd)/backend" PATH=$PATH:"$(pwd)/frontend" ctest -V -C $BUILD_TYPE
+      run: LD_LIBRARY_PATH=$LD_LIBRARY_PATH:"$(pwd)/backend" PATH=$PATH:"$(pwd)/frontend" QT_QPA_PLATFORM=offscreen ctest -V -C $BUILD_TYPE
 
   build-ubuntu-debug:
     runs-on: ubuntu-latest
@@ -60,7 +61,7 @@ jobs:
       BUILD_TYPE: Debug
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: Install libpng-dev
       run: sudo apt-get install libpng-dev
@@ -69,45 +70,53 @@ jobs:
       shell: bash
       run: sudo locale-gen de_DE.UTF-8 && sudo update-locale
 
+    - name: Install Qt6
+      uses: jurplel/install-qt-action@v4
+      with:
+        version: 6.9.0
+        dir: .
+
     - name: Create Build Environment
-      run: cmake -E make_directory ${{runner.workspace}}/build
+      shell: bash
+      run: git config --global --add safe.directory ${GITHUB_WORKSPACE} && cmake -E make_directory build
 
     - name: Configure CMake
-      working-directory: ${{runner.workspace}}/build
+      working-directory: build
       shell: bash
-      run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DZINT_TEST=ON -DZINT_STATIC=ON -DZINT_USE_QT=OFF
+      run: CMAKE_PREFIX_PATH=$QT_ROOT_DIR cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DZINT_TEST=ON -DZINT_STATIC=ON -DZINT_QT6=ON
 
     - name: Build
-      working-directory: ${{runner.workspace}}/build
+      working-directory: build
       shell: bash
       run: cmake --build . -j8 --config $BUILD_TYPE
 
     - name: Test
-      working-directory: ${{runner.workspace}}/build
+      working-directory: build
       shell: bash
-      run: LD_LIBRARY_PATH=$LD_LIBRARY_PATH:"$(pwd)/backend" PATH=$PATH:"$(pwd)/frontend" ctest -V -C $BUILD_TYPE
+      run: LD_LIBRARY_PATH=$LD_LIBRARY_PATH:"$(pwd)/backend" PATH=$PATH:"$(pwd)/frontend" QT_QPA_PLATFORM=offscreen ctest -V -C $BUILD_TYPE
 
   build-windows-32bit:
     runs-on: windows-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: Create Build Environment
-      run: cmake -E make_directory ${{runner.workspace}}/build
+      shell: bash
+      run: git config --global --add safe.directory ${GITHUB_WORKSPACE} && cmake -E make_directory build
 
     - name: Configure CMake
-      working-directory: ${{runner.workspace}}/build
+      working-directory: build
       shell: bash
       run: cmake $GITHUB_WORKSPACE -A Win32 -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DZINT_TEST=ON -DZINT_STATIC=ON -DZINT_USE_PNG=OFF -DZINT_USE_QT=OFF
 
     - name: Build
-      working-directory: ${{runner.workspace}}/build
+      working-directory: build
       shell: bash
       run: cmake --build . -j8 --config $BUILD_TYPE
 
     - name: Test
-      working-directory: ${{runner.workspace}}/build
+      working-directory: build
       shell: bash
       run: PATH=$PATH:"$(pwd)/backend/Release:$(pwd)/frontend/Release" ctest -V -C $BUILD_TYPE
 
@@ -115,23 +124,24 @@ jobs:
     runs-on: windows-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: Create Build Environment
-      run: cmake -E make_directory ${{runner.workspace}}/build
+      shell: bash
+      run: git config --global --add safe.directory ${GITHUB_WORKSPACE} && cmake -E make_directory build
 
     - name: Configure CMake
-      working-directory: ${{runner.workspace}}/build
+      working-directory: build
       shell: bash
       run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DZINT_TEST=ON -DZINT_STATIC=ON -DZINT_USE_PNG=OFF -DZINT_USE_QT=OFF
 
     - name: Build
-      working-directory: ${{runner.workspace}}/build
+      working-directory: build
       shell: bash
       run: cmake --build . -j8 --config $BUILD_TYPE
 
     - name: Test
-      working-directory: ${{runner.workspace}}/build
+      working-directory: build
       shell: bash
       run: PATH=$PATH:"$(pwd)/backend/Release:$(pwd)/frontend/Release" ctest -V -C $BUILD_TYPE
 
@@ -139,23 +149,24 @@ jobs:
     runs-on: macOS-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: Create Build Environment
-      run: cmake -E make_directory ${{runner.workspace}}/build
+      shell: bash
+      run: git config --global --add safe.directory ${GITHUB_WORKSPACE} && cmake -E make_directory build
 
     - name: Configure CMake
-      working-directory: ${{runner.workspace}}/build
+      working-directory: build
       shell: bash
       run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DZINT_TEST=ON -DZINT_STATIC=ON -DZINT_USE_PNG=OFF -DZINT_USE_QT=OFF
 
     - name: Build
-      working-directory: ${{runner.workspace}}/build
+      working-directory: build
       shell: bash
       run: SDKROOT="$(xcrun --sdk macosx --show-sdk-path)" cmake --build . -j8 --config $BUILD_TYPE
 
     - name: Test
-      working-directory: ${{runner.workspace}}/build
+      working-directory: build
       shell: bash
       run: LD_LIBRARY_PATH=$LD_LIBRARY_PATH:"$(pwd)/backend" PATH=$PATH:"$(pwd)/frontend" ctest -V -C $BUILD_TYPE
 
@@ -163,22 +174,23 @@ jobs:
     runs-on: macOS-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: Create Build Environment
-      run: cmake -E make_directory ${{runner.workspace}}/build
+      shell: bash
+      run: git config --global --add safe.directory ${GITHUB_WORKSPACE} && cmake -E make_directory build
 
     - name: Configure CMake
-      working-directory: ${{runner.workspace}}/build
+      working-directory: build
       shell: bash
       run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DZINT_TEST=ON -DZINT_SANITIZE=ON -DZINT_USE_PNG=OFF -DZINT_USE_QT=OFF
 
     - name: Build
-      working-directory: ${{runner.workspace}}/build
+      working-directory: build
       shell: bash
       run: SDKROOT="$(xcrun --sdk macosx --show-sdk-path)" cmake --build . -j8 --config $BUILD_TYPE
 
     - name: Test
-      working-directory: ${{runner.workspace}}/build
+      working-directory: build
       shell: bash
       run: LD_LIBRARY_PATH=$LD_LIBRARY_PATH:"$(pwd)/backend" PATH=$PATH:"$(pwd)/frontend" ctest -V -C $BUILD_TYPE