diff --git a/.github/workflows/macos-bdb.yml b/.github/workflows/macos-bdb.yml
new file mode 100644
index 000000000..6ad7e64ef
--- /dev/null
+++ b/.github/workflows/macos-bdb.yml
@@ -0,0 +1,129 @@
+name: MacOS BDB
+
+on:
+  pull_request:
+    branches: [ gc4 ]
+  push:
+    branches: [ gc3_to_gc4 ]
+  # manual run in actions tab - for all branches
+  workflow_dispatch:
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - macos-latest
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Configure git
+        run: git config --global core.symlinks false
+
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Install packages
+        run: |
+          brew install pkg-config automake libtool help2man texinfo bison berkeley-db@4 json-c
+          opt="/opt/homebrew/opt"
+          echo "$opt/pkg-config/bin" >> $GITHUB_PATH
+          echo "$opt/bison/bin" >> $GITHUB_PATH
+          echo "LDFLAGS=-L$opt/berkeley-db@4/lib ${LDFLAGS}" >> $GITHUB_ENV
+          echo "CPPFLAGS=-I$opt/berkeley-db@4/include ${CPPFLAGS}" >> $GITHUB_ENV
+
+      - name: Set git user
+        run: |
+          git config --global user.name github-actions
+          git config --global user.email github-actions-bot@users.noreply.github.com
+
+      - name: bootstrap
+        run: |
+          sed -i '' 's/-undefined suppress//g' configure.ac
+          ./autogen.sh
+          autoconf
+          autoreconf --install --force
+
+      - name: Build environment setup
+        run: |
+          mkdir _build
+          echo "NPROC=`sysctl -n hw.ncpu`" >> $GITHUB_ENV
+          export TERM="vt100"
+          echo "TERM=$TERM" >> $GITHUB_ENV
+
+      - name: configure
+        run: |
+          cd _build
+          export CFLAGS="-Wno-deprecated-non-prototype -Wno-parentheses-equality $CFLAGS"
+          ../configure --with-db --with-indexed=db --enable-cobc-internal-checks --enable-hardening --prefix /opt/cobol/gnucobol --exec-prefix /opt/cobol/gnucobol
+
+      - name: Upload config.log
+        uses: actions/upload-artifact@v3
+        with:
+          name: config.log
+          path: _build/config.log
+        if: failure()
+
+      - name: make
+        run: |
+          cd _build
+          make --jobs=$((${NPROC}+1))
+
+# make install must be done before make check, otherwise execution of
+# generated COBOL files fail for a missing /usr/local/lib/libcob.dylib
+      - name: make install
+        run: |
+          cd _build
+          sudo make install
+          find /opt/cobol > install.log
+
+      - name: Upload install.log
+        uses: actions/upload-artifact@v3
+        with:
+          name: install.log
+          path: _build/install.log
+
+      - name: check
+        run: |
+          sed -i '' '/AT_SETUP(\[INDEXED file SUPPRESS WHEN ALL \+ KEYCHECK\])/a\
+          AT_SKIP_IF(\[true\])' tests/testsuite.src/run_file.at
+          sed -i '' '/AT_SETUP(\[EXTFH: using ISAM callback\])/a\
+          AT_SKIP_IF(\[true\])' tests/testsuite.src/run_file.at
+          sed -i '' '/AT_SETUP(\[trace feature\])/a\
+          AT_SKIP_IF(\[true\])' tests/testsuite.src/run_file.at
+          sed -i '' '/AT_SETUP(\[trace feature with subroutine\])/a\
+          AT_SKIP_IF(\[true\])' tests/testsuite.src/run_file.at
+          sed -i '' '/AT_SETUP(\[trace feature with indexed EXTFH\])/a\
+          AT_SKIP_IF(\[true\])' tests/testsuite.src/run_file.at
+          cd _build
+          make check TESTSUITEFLAGS="--jobs=$((${NPROC}+1))"
+
+      - name: Upload testsuite.log
+        uses: actions/upload-artifact@v3
+        if: failure()
+        with:
+          name: testsuite.log
+          path: _build/tests/testsuite.log
+
+      - name: Cache newcob.val.Z
+        uses: actions/cache@v3
+        id: newcob
+        with:
+          path: _build/tests/cobol85/newcob.val.Z.cached
+          key: newcob
+
+      - name: Download newcob.val.Z
+        if: steps.newcob.outputs.cache-hit != 'true'
+        run: |
+          cd _build/tests/cobol85
+          make newcob.val.Z
+          ln -f newcob.val.Z newcob.val.Z.cached
+
+      - name: NIST85 Test Suite
+        run: |
+          cd _build/tests/cobol85
+          ln -f newcob.val.Z.cached newcob.val.Z
+          make EXEC85 && make --jobs=$(($(nproc)+1)) test
diff --git a/.github/workflows/macos-visam.yml b/.github/workflows/macos-visam.yml
new file mode 100644
index 000000000..25019314f
--- /dev/null
+++ b/.github/workflows/macos-visam.yml
@@ -0,0 +1,142 @@
+name: MacOS VISAM
+
+on:
+  pull_request:
+    branches: [ gc4 ]
+  push:
+    branches: [ gc3_to_gc4 ]
+  # manual run in actions tab - for all branches
+  workflow_dispatch:
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - macos-latest
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Configure git
+        run: git config --global core.symlinks false
+
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Install packages
+        run: |
+          brew install pkg-config automake libtool help2man texinfo bison berkeley-db@4 json-c
+          opt="/opt/homebrew/opt"
+          echo "$opt/pkg-config/bin" >> $GITHUB_PATH
+          echo "$opt/bison/bin" >> $GITHUB_PATH
+          echo "LDFLAGS=-L$opt/berkeley-db@4/lib ${LDFLAGS}" >> $GITHUB_ENV
+          echo "CPPFLAGS=-I$opt/berkeley-db@4/include ${CPPFLAGS}" >> $GITHUB_ENV
+
+      - name: Set git user
+        run: |
+          git config --global user.name github-actions
+          git config --global user.email github-actions-bot@users.noreply.github.com
+
+      - name: Installing VISAM prerequisite
+        run: |
+          wget http://inglenet.ca/Products/GnuCOBOL/visam-2.2.tar.Z
+          tar -xvzf visam-2.2.tar.Z
+          cd visam-2.2
+          ./configure --prefix=/usr/local/visam-2.2 --enable-vbisamdefault
+          chmod u+x build_aux/install-sh
+          make
+          sudo make install
+          echo "CPATH=/usr/local/visam-2.2/include" >> $GITHUB_ENV
+          echo "LIBRARY_PATH=/usr/local/visam-2.2/lib" >> $GITHUB_ENV
+          echo "LD_LIBRARY_PATH=/usr/local/visam-2.2/lib" >> $GITHUB_ENV
+
+      - name: bootstrap
+        run: |
+          sed -i '' 's/-undefined suppress//g' configure.ac
+          ./autogen.sh
+          autoconf
+          autoreconf --install --force
+
+      - name: Build environment setup
+        run: |
+          mkdir _build
+          echo "NPROC=`sysctl -n hw.ncpu`" >> $GITHUB_ENV
+          export TERM="vt100"
+          echo "TERM=$TERM" >> $GITHUB_ENV
+
+      - name: configure
+        run: |
+          cd _build
+          export CFLAGS="-Wno-deprecated-non-prototype -Wno-parentheses-equality $CFLAGS"
+          ../configure --with-visam --with-indexed=visam --enable-cobc-internal-checks --enable-hardening --prefix /opt/cobol/gnucobol --exec-prefix /opt/cobol/gnucobol
+
+      - name: Upload config.log
+        uses: actions/upload-artifact@v3
+        with:
+          name: config.log
+          path: _build/config.log
+        if: failure()
+
+      - name: make
+        run: |
+          cd _build
+          make --jobs=$((${NPROC}+1))
+
+# make install must be done before make check, otherwise execution of
+# generated COBOL files fail for a missing /usr/local/lib/libcob.dylib
+      - name: make install
+        run: |
+          cd _build
+          sudo make install
+          find /opt/cobol > install.log
+
+      - name: Upload install.log
+        uses: actions/upload-artifact@v3
+        with:
+          name: install.log
+          path: _build/install.log
+
+      - name: check
+        run: |
+          sed -i '' '/AT_SETUP(\[INDEXED file SUPPRESS WHEN ALL \+ KEYCHECK\])/a\
+          AT_SKIP_IF(\[true\])' tests/testsuite.src/run_file.at
+          sed -i '' '/AT_SETUP(\[EXTFH: using ISAM callback\])/a\
+          AT_SKIP_IF(\[true\])' tests/testsuite.src/run_file.at
+          sed -i '' '/AT_SETUP(\[trace feature\])/a\
+          AT_SKIP_IF(\[true\])' tests/testsuite.src/run_file.at
+          sed -i '' '/AT_SETUP(\[trace feature with subroutine\])/a\
+          AT_SKIP_IF(\[true\])' tests/testsuite.src/run_file.at
+          sed -i '' '/AT_SETUP(\[trace feature with indexed EXTFH\])/a\
+          AT_SKIP_IF(\[true\])' tests/testsuite.src/run_file.at
+          cd _build
+          make check TESTSUITEFLAGS="--jobs=$((${NPROC}+1))"
+
+      - name: Upload testsuite.log
+        uses: actions/upload-artifact@v3
+        if: failure()
+        with:
+          name: testsuite.log
+          path: _build/tests/testsuite.log
+
+      - name: Cache newcob.val.Z
+        uses: actions/cache@v3
+        id: newcob
+        with:
+          path: _build/tests/cobol85/newcob.val.Z.cached
+          key: newcob
+
+      - name: Download newcob.val.Z
+        if: steps.newcob.outputs.cache-hit != 'true'
+        run: |
+          cd _build/tests/cobol85
+          make newcob.val.Z
+          ln -f newcob.val.Z newcob.val.Z.cached
+
+      - name: NIST85 Test Suite
+        run: |
+          cd _build/tests/cobol85
+          ln -f newcob.val.Z.cached newcob.val.Z
+          make EXEC85 && make --jobs=$(($(nproc)+1)) test
diff --git a/.github/workflows/ubuntu-bdb.yml b/.github/workflows/ubuntu-bdb.yml
new file mode 100644
index 000000000..722d3e101
--- /dev/null
+++ b/.github/workflows/ubuntu-bdb.yml
@@ -0,0 +1,205 @@
+name: Ubuntu BDB
+
+on:
+  pull_request:
+    branches: [ gc4 ]
+  push:
+    branches: [ gc3_to_gc4 ]
+  # manual run in actions tab - for all branches
+  workflow_dispatch:
+
+jobs:
+  build:
+    name: Build, test and provide nightly
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-latest
+        include:
+          - os: ubuntu-latest
+            skip_test: true
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Install packages
+        run: |
+          sudo apt-get update
+          sudo apt-get install automake libtool libdb5.3-dev libxml2-dev libcjson-dev bison flex help2man gettext texlive
+
+      - name: Set git user
+        run: |
+          git config --global user.name github-actions
+          git config --global user.email github-actions-bot@users.noreply.github.com
+
+      - name: bootstrap
+        run: |
+          ./build_aux/bootstrap
+
+      # FIXME: With TERM="dumb" `make check` fails with:
+      # ...
+      # 571: ACCEPT OMITTED (SCREEN)                         FAILED (run_accept.at:307)
+      # ...
+      # 693: ON EXCEPTION clause of DISPLAY                  FAILED (run_misc.at:6335)
+      # 695: LINE/COLUMN 0 exceptions                        FAILED (run_misc.at:6414)
+      # 694: EC-SCREEN-LINE-NUMBER and -STARTING-COLUMN      FAILED (run_misc.at:6376)
+      # ...
+      # Failure cases read: "Error opening terminal: unknown." on
+      # stderr, and exit with code 1.
+      #
+      # Another alternative is passing `--with-curses=no` to the
+      # configure script, yet distcheck does call configure too...
+      #
+      - name: Build environment setup
+        run: |
+          mkdir _build
+          export TERM="vt100"
+          echo "TERM=$TERM" >> $GITHUB_ENV
+          echo "INSTALL_PATH=$(pwd)/_install" >> $GITHUB_ENV
+
+      - name: configure
+        run: |
+          cd _build
+          ../configure --with-db --with-indexed=db --enable-cobc-internal-checks --enable-hardening --prefix ${INSTALL_PATH}
+          echo "VERSION=PACKAGE_VERSION" | cpp -P -imacros config.h | tr -d \" >> $GITHUB_ENV
+
+      - name: Upload config.log
+        uses: actions/upload-artifact@v3
+        if: failure()
+        with:
+          name: config.log
+          path: _build/config.log
+
+      - name: make
+        run: |
+          cd _build
+          make --jobs=$(($(nproc)+1))
+
+      # - name: check
+      #   run: |
+      #     cd _build
+      #     make check TESTSUITEFLAGS="--jobs=$(($(nproc)+1))"
+
+      # note: distcheck also creates the dist tarball
+      - name: distcheck
+        run: |
+          cd _build
+          make --jobs=$(($(nproc)+1)) distcheck TESTSUITEFLAGS="--jobs=$(($(nproc)+1))"
+
+      - name: Upload testsuite.log
+        uses: actions/upload-artifact@v3
+        if: failure()
+        with:
+          # Assume there's only one directory matching `_build/gnucobol-*`:
+          name: testsuite.log
+          path: _build/gnucobol-${{ env.VERSION }}/_build/sub/tests/testsuite.log
+
+      - name: Upload dist tarball
+        uses: actions/upload-artifact@v3.1.0
+        with:
+          name: gnucobol-ci source distribution
+          path: _build/gnucobol*.tar*
+          if-no-files-found: error
+          retention-days: 0
+
+      - name: Cache newcob.val.Z
+        uses: actions/cache@v3
+        id: newcob
+        with:
+          path: _build/tests/cobol85/newcob.val.Z.cached
+          key: newcob
+
+      - name: Download newcob.val.Z
+        if: steps.newcob.outputs.cache-hit != 'true'
+        run: |
+          cd _build/tests/cobol85
+          make newcob.val.Z
+          ln -f newcob.val.Z newcob.val.Z.cached
+
+      - name: NIST85 Test Suite
+        run: |
+          cd _build/tests/cobol85
+          ln -f newcob.val.Z.cached newcob.val.Z
+          make EXEC85 && make --jobs=$(($(nproc)+1)) test
+
+      - uses: actions/upload-artifact@v3
+        with:
+          name: NIST85 results
+          path: |
+            _build/tests/cobol85/**/*.log
+            _build/tests/cobol85/**/*.out
+
+      - name: install
+        run: |
+          cd _build
+          make install
+
+
+  coverage:
+    name: Coverage and Warnings
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+
+      # note: less dependencies as we don't generate a dist tarball, one additional for lcov
+      - name: Install dependencies
+        run: |
+          sudo apt-get install automake libtool libdb5.3-dev libxml2-dev libcjson-dev bison flex help2man gettext lcov
+
+      - name: bootstrap
+        run: |
+          ./build_aux/bootstrap
+
+      - name: Build environment setup
+        run: |
+          mkdir _build
+          export TERM="vt100"
+          echo "TERM=$TERM" >> $GITHUB_ENV
+
+      # note: w add additional C compiler syntax checks here to not need _another_ CI run
+      - name: configure
+        run: |
+          cd _build
+          ../configure --enable-code-coverage CPPFLAGS="-Werror=declaration-after-statement"
+
+      - uses: actions/upload-artifact@v3
+        if: failure()
+        with:
+          name: config.log
+          path: _build/config.log
+
+      - name: make
+        run: |
+          cd _build
+          make --jobs=$(($(nproc)+1))
+
+      - name: coverage
+        run: |
+          cd _build
+          make check-code-coverage TESTSUITEFLAGS="--jobs=$(($(nproc)+1))"
+
+      - uses: actions/upload-artifact@v3
+        if: failure()
+        with:
+          name: testsuite.log
+          path: _build/tests/testsuite.log
+
+      - uses: actions/upload-artifact@v3
+        with:
+          name: coverage
+          path: _build/GnuCOBOL-**-coverage/
+
+      - uses: codecov/codecov-action@v2
+        with:
+          # token: ${{ secrets.CODECOV_TOKEN }} # not required for public repos
+          directory: _build
+          # Shall fail until we have a working account on codecov.io
+          fail_ci_if_error: false # optional (default = false)
+          verbose: true # optional (default = false)
+
diff --git a/.github/workflows/ubuntu-visam.yml b/.github/workflows/ubuntu-visam.yml
new file mode 100644
index 000000000..0b745c4cf
--- /dev/null
+++ b/.github/workflows/ubuntu-visam.yml
@@ -0,0 +1,217 @@
+name: Ubuntu VISAM
+
+on:
+  pull_request:
+    branches: [ gc4 ]
+  push:
+    branches: [ gc3_to_gc4 ]
+  # manual run in actions tab - for all branches
+  workflow_dispatch:
+
+jobs:
+  build:
+    name: Build, test and provide nightly
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-latest
+        include:
+          - os: ubuntu-latest
+            skip_test: true
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Install packages
+        run: |
+          sudo apt-get update
+          sudo apt-get install automake libtool libdb5.3-dev libxml2-dev libcjson-dev bison flex help2man gettext texlive
+
+      - name: Set git user
+        run: |
+          git config --global user.name github-actions
+          git config --global user.email github-actions-bot@users.noreply.github.com
+
+      - name: Installing VISAM prerequisite
+        run: |
+          wget http://inglenet.ca/Products/GnuCOBOL/visam-2.2.tar.Z
+          tar -xvzf visam-2.2.tar.Z
+          cd visam-2.2
+          ./configure --prefix=/usr/local/visam-2.2 --enable-vbisamdefault
+          make
+          sudo make install
+          echo "CPATH=/usr/local/visam-2.2/include" >> $GITHUB_ENV
+          echo "LIBRARY_PATH=/usr/local/visam-2.2/lib" >> $GITHUB_ENV
+          echo "LD_LIBRARY_PATH=/usr/local/visam-2.2/lib" >> $GITHUB_ENV
+
+      - name: bootstrap
+        run: |
+          ./build_aux/bootstrap
+
+      # FIXME: With TERM="dumb" `make check` fails with:
+      # ...
+      # 571: ACCEPT OMITTED (SCREEN)                         FAILED (run_accept.at:307)
+      # ...
+      # 693: ON EXCEPTION clause of DISPLAY                  FAILED (run_misc.at:6335)
+      # 695: LINE/COLUMN 0 exceptions                        FAILED (run_misc.at:6414)
+      # 694: EC-SCREEN-LINE-NUMBER and -STARTING-COLUMN      FAILED (run_misc.at:6376)
+      # ...
+      # Failure cases read: "Error opening terminal: unknown." on
+      # stderr, and exit with code 1.
+      #
+      # Another alternative is passing `--with-curses=no` to the
+      # configure script, yet distcheck does call configure too...
+      #
+      - name: Build environment setup
+        run: |
+          mkdir _build
+          export TERM="vt100"
+          echo "TERM=$TERM" >> $GITHUB_ENV
+          echo "INSTALL_PATH=$(pwd)/_install" >> $GITHUB_ENV
+
+      - name: configure
+        run: |
+          cd _build
+          ../configure --with-visam --with-indexed=visam --enable-cobc-internal-checks --enable-hardening --prefix ${INSTALL_PATH}
+          echo "VERSION=PACKAGE_VERSION" | cpp -P -imacros config.h | tr -d \" >> $GITHUB_ENV
+
+      - name: Upload config.log
+        uses: actions/upload-artifact@v3
+        if: failure()
+        with:
+          name: config.log
+          path: _build/config.log
+
+      - name: make
+        run: |
+          cd _build
+          make --jobs=$(($(nproc)+1))
+
+      # - name: check
+      #   run: |
+      #     cd _build
+      #     make check TESTSUITEFLAGS="--jobs=$(($(nproc)+1))"
+
+      # note: distcheck also creates the dist tarball
+      - name: distcheck
+        run: |
+          cd _build
+          make --jobs=$(($(nproc)+1)) distcheck TESTSUITEFLAGS="--jobs=$(($(nproc)+1))"
+
+      - name: Upload testsuite.log
+        uses: actions/upload-artifact@v3
+        if: failure()
+        with:
+          # Assume there's only one directory matching `_build/gnucobol-*`:
+          name: testsuite.log
+          path: _build/gnucobol-${{ env.VERSION }}/_build/sub/tests/testsuite.log
+
+      - name: Upload dist tarball
+        uses: actions/upload-artifact@v3.1.0
+        with:
+          name: gnucobol-ci source distribution
+          path: _build/gnucobol*.tar*
+          if-no-files-found: error
+          retention-days: 0
+
+      - name: Cache newcob.val.Z
+        uses: actions/cache@v3
+        id: newcob
+        with:
+          path: _build/tests/cobol85/newcob.val.Z.cached
+          key: newcob
+
+      - name: Download newcob.val.Z
+        if: steps.newcob.outputs.cache-hit != 'true'
+        run: |
+          cd _build/tests/cobol85
+          make newcob.val.Z
+          ln -f newcob.val.Z newcob.val.Z.cached
+
+      - name: NIST85 Test Suite
+        run: |
+          cd _build/tests/cobol85
+          ln -f newcob.val.Z.cached newcob.val.Z
+          make EXEC85 && make --jobs=$(($(nproc)+1)) test
+
+      - uses: actions/upload-artifact@v3
+        with:
+          name: NIST85 results
+          path: |
+            _build/tests/cobol85/**/*.log
+            _build/tests/cobol85/**/*.out
+
+      - name: install
+        run: |
+          cd _build
+          make install
+
+
+  coverage:
+    name: Coverage and Warnings
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+
+      # note: less dependencies as we don't generate a dist tarball, one additional for lcov
+      - name: Install dependencies
+        run: |
+          sudo apt-get install automake libtool libdb5.3-dev libxml2-dev libcjson-dev bison flex help2man gettext lcov
+
+      - name: bootstrap
+        run: |
+          ./build_aux/bootstrap
+
+      - name: Build environment setup
+        run: |
+          mkdir _build
+          export TERM="vt100"
+          echo "TERM=$TERM" >> $GITHUB_ENV
+
+      # note: w add additional C compiler syntax checks here to not need _another_ CI run
+      - name: configure
+        run: |
+          cd _build
+          ../configure --enable-code-coverage CPPFLAGS="-Werror=declaration-after-statement"
+
+      - uses: actions/upload-artifact@v3
+        if: failure()
+        with:
+          name: config.log
+          path: _build/config.log
+
+      - name: make
+        run: |
+          cd _build
+          make --jobs=$(($(nproc)+1))
+
+      - name: coverage
+        run: |
+          cd _build
+          make check-code-coverage TESTSUITEFLAGS="--jobs=$(($(nproc)+1))"
+
+      - uses: actions/upload-artifact@v3
+        if: failure()
+        with:
+          name: testsuite.log
+          path: _build/tests/testsuite.log
+
+      - uses: actions/upload-artifact@v3
+        with:
+          name: coverage
+          path: _build/GnuCOBOL-**-coverage/
+
+      - uses: codecov/codecov-action@v2
+        with:
+          # token: ${{ secrets.CODECOV_TOKEN }} # not required for public repos
+          directory: _build
+          # Shall fail until we have a working account on codecov.io
+          fail_ci_if_error: false # optional (default = false)
+          verbose: true # optional (default = false)
+
diff --git a/.github/workflows/windows-msvc-bdb.yml b/.github/workflows/windows-msvc-bdb.yml
new file mode 100644
index 000000000..fb7d20d3a
--- /dev/null
+++ b/.github/workflows/windows-msvc-bdb.yml
@@ -0,0 +1,158 @@
+name: Windows MSVC BDB (build only)
+
+on:
+  pull_request:
+    branches: [ gc4 ]
+  push:
+    branches: [ gc3_to_gc4 ]
+  # manual run in actions tab - for all branches
+  workflow_dispatch:
+
+env:
+  FLEXBISON: https://github.com/lexxmark/winflexbison/releases/download/v2.5.25/win_flex_bison-2.5.25.zip
+  MSBUILD: C:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Current\Bin\MSBuild.exe
+  VCVARS: C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Auxiliary\Build\vcvars64.bat
+  VCPKG_ROOT: C:\vcpkg
+  VCPKGS: mpir:x64-windows pdcurses:x64-windows berkeleydb:x64-windows libxml2:x64-windows cjson:x64-windows
+  MSYS2_ROOT: C:\msys64
+  MSYSPKGS: autoconf
+  MSYSTEM: UCRT64
+  MSYSTEM_CHOST: x86_64-w64-mingw32
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - windows-latest
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+
+      - name: Set git user
+        run: |
+          git config --global user.name github-actions
+          git config --global user.email github-actions-bot@users.noreply.github.com
+
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Setup environment
+        run: echo GITHUB_WORKSPACE=$env:GITHUB_WORKSPACE >> $env:GITHUB_ENV
+
+      - name: Restore VCPKG package cache
+        id: restore-vcpkg
+        uses: actions/cache/restore@v3
+        with:
+          key: cache-vcpkg
+          path: |
+            ${{ env.VCPKG_ROOT }}/installed
+            ${{ env.VCPKG_ROOT }}/packages
+
+      - name: Install VCPKG packages
+        if: steps.restore-vcpkg.outputs.cache-hit != 'true'
+        run: |
+          cd $env:VCPKG_ROOT
+          git pull
+          .\bootstrap-vcpkg.bat -disableMetrics
+          vcpkg integrate install
+          vcpkg install (-split $env:VCPKGS)
+          vcpkg update
+          vcpkg upgrade (-split $env:VCPKGS) --no-dry-run
+
+      - name: Save VCPKG package cache
+        if: steps.restore-vcpkg.outputs.cache-hit != 'true'
+        uses: actions/cache/save@v3
+        with:
+          key: cache-vcpkg
+          path: |
+            ${{ env.VCPKG_ROOT }}/installed
+            ${{ env.VCPKG_ROOT }}/packages
+
+      - name: Restore WinFlexBison cache
+        uses: actions/cache/restore@v3
+        id: restore-flexbison
+        with:
+          key: cache-flexbison
+          path: ${{ env.GITHUB_WORKSPACE }}\flexbison
+
+      - name: Install WinFlexBison
+        if: steps.restore-flexbison.outputs.cache-hit != 'true'
+        run: |
+          Invoke-WebRequest -Uri $env:FLEXBISON -OutFile flexbison.zip
+          Expand-Archive flexbison.zip -DestinationPath flexbison
+
+      - name: Save WinFlexBison cache
+        if: steps.restore-flexbison.outputs.cache-hit != 'true'
+        uses: actions/cache/save@v3
+        with:
+          key: cache-flexbison
+          path: ${{ env.GITHUB_WORKSPACE }}/flexbison
+
+      - name: Configure GnuCOBOL
+        run: |
+          cd build_windows
+          Get-Content -Path 'config.h.in' | ForEach-Object { $_ `
+              -replace '(#define\s+CONFIGURED_ISAM)\s.+$', '$1   BDB' `
+              -replace '(#define\s+CONFIGURED_CURSES)\s.+$', '$1 PDCURSES' `
+              -replace '(#define\s+CONFIGURED_XML)\s.+$', '$1    XML2' `
+              -replace '(#define\s+CONFIGURED_JSON)\s.+$', '$1   CJSON_CJSON' `
+            } | Set-Content -Path 'config.h'
+          & .\maketarstamp.ps1 > tarstamp.h
+
+      - name: Generate parser
+        run: |
+          $env:PATH = "$pwd\flexbison;$env:PATH"
+          cd build_windows
+          cmd /C makebisonflex.cmd
+
+      - name: Build GnuCOBOL
+        run: |
+          cd build_windows
+          vcpkg integrate install
+          & $env:MSBUILD "vs2019\GnuCOBOL.sln" /m /p:Platform=x64 /p:Configuration=Release
+
+      - name: Install MSYS2 packages
+        shell: C:\shells\msys2bash.cmd {0}
+        run: |
+          pacman --needed --noconfirm -S $MSYSPKGS
+
+      - name: Building testsuite
+        shell: C:\shells\msys2bash.cmd {0}
+        run: |
+          cd tests
+          echo at_testdir=\'tests\' > atconfig
+          echo abs_builddir=\'$(pwd)\' >> atconfig
+          echo at_srcdir=\'./\' >> atconfig
+          echo abs_srcdir=\'$(pwd)/\' >> atconfig
+          echo at_top_srcdir=\'../\' >> atconfig
+          echo abs_top_srcdir=\'$(pwd)/../\' >> atconfig
+          echo at_top_build_prefix=\'../\' >> atconfig
+          echo abs_top_builddir=\'$(pwd)/../\' >> atconfig
+          echo at_top_builddir=\$at_top_build_prefix >> atconfig
+          echo EXEEXT=\'.exe\' >> atconfig
+          echo AUTOTEST_PATH=\'tests\' >> atconfig
+          echo SHELL=\${CONFIG_SHELL-\'/bin/sh\'} >> atconfig
+          echo m4_define\([AT_PACKAGE_STRING], [GnuCOBOL 4.0-dev]\) > package.m4
+          echo m4_define\([AT_PACKAGE_BUGREPORT], [bug-gnucobol@gnu.org]\) >> package.m4
+          sed 's/x64\/Debug/x64\/Release/g' atlocal_win > atlocal
+          sed -i '/AT_SETUP(\[runtime check: write to internal storage (1)\])/a AT_SKIP_IF(\[true\])' testsuite.src/run_misc.at
+          autom4te --lang=autotest -I ./testsuite.src ./testsuite.at -o ./testsuite
+
+      - name: Running testsuite
+        continue-on-error: true
+        shell: cmd
+        run: |
+          set COB_CFLAGS=/I "%cd%" /I "%VCPKG_ROOT%\installed\x64-windows\include"
+          set COB_LIBS=libcob-5.lib /LIBPATH:"%cd%\build_windows\x64\Release"
+          call "%VCVARS%"
+          cd tests
+          bash -c "./testsuite || ./testsuite --recheck --verbose"
+
+      - name: Upload testsuite.log
+        uses: actions/upload-artifact@v3
+        with:
+          name: testsuite.log
+          path: ${{ env.GITHUB_WORKSPACE }}/tests/testsuite.log
diff --git a/.github/workflows/windows-msys1-bdb.yml b/.github/workflows/windows-msys1-bdb.yml
new file mode 100644
index 000000000..a193040b8
--- /dev/null
+++ b/.github/workflows/windows-msys1-bdb.yml
@@ -0,0 +1,156 @@
+name: Windows MSYS1 BDB (build only)
+
+on:
+  pull_request:
+    branches: [ gc4 ]
+  push:
+    branches: [ gc3_to_gc4 ]
+  # manual run in actions tab - for all branches
+  workflow_dispatch:
+
+env:
+  MSYS_ROOT: C:\MinGW\
+  MSYS_BIN: C:\MinGW\msys\1.0\bin
+  BISON_PKGDATADIR: C:\MinGW\share\bison
+
+  MSYSTEM: MINGW32
+  MSYSPKGS: msys-m4 msys-flex msys-coreutils msys-help2man
+
+  M4: m4
+
+  MINGW_BISON_VERS: bison-3.0.1
+  MINGW_GMP_VERS: gmp-6.3.0
+  MINGW_BDB_VERS: db-6.0.19.NC
+  MINGW_PDCM_VERS: 4.4.0
+  MINGW_CJSON_VERS: 1.7.18
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - windows-latest
+
+    runs-on: ${{ matrix.os }}
+
+    defaults:
+      run:
+        shell: cmd
+
+    steps:
+      - name: Set git user
+        run: |
+          git config --global user.name github-actions
+          git config --global user.email github-actions-bot@users.noreply.github.com
+
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Setup environment
+        run: echo GITHUB_WORKSPACE=%GITHUB_WORKSPACE%>> %GITHUB_ENV%
+
+      - name: Restore MSYS env
+        id: restore-msys
+        uses: actions/cache/restore@v3
+        with:
+          key: cache-msys
+          path: |
+            ${{ env.MSYS_ROOT }}
+
+      - name: Install MSYS1
+        if: steps.restore-msys.outputs.cache-hit != 'true'
+        run: |
+          curl -O https://www.arnoldtrembley.com/MinGW-bkup02.7z
+          7z x MinGW-bkup02.7z -o%MSYS_ROOT%
+
+      - name: Install MSYS1 packages
+        if: steps.restore-msys.outputs.cache-hit != 'true'
+        run: |
+          %MSYS_BIN%\bash -lc "mingw-get install %MSYSPKGS%"
+
+      - name: Install Bison 3.0
+        if: steps.restore-msys.outputs.cache-hit != 'true'
+        run: |
+          curl -L "https://mirror.ibcp.fr/pub/gnu/bison/%MINGW_BISON_VERS%.tar.xz" -o "%MINGW_BISON_VERS%.tar.xz"
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\"                    && tar -xvf %MINGW_BISON_VERS%.tar.xz"
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\%MINGW_BISON_VERS%\" && ./configure --prefix=/mingw && make"
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\%MINGW_BISON_VERS%\" && make install"
+
+      # - name: Install GMP
+      #   if: steps.restore-msys.outputs.cache-hit != 'true'
+      #   run: |
+      #     curl -L "https://gmplib.org/download/gmp/%MINGW_GMP_VERS%.tar.xz" -o "%MINGW_GMP_VERS%.tar.xz"
+      #     %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\"                  && tar -xvf %MINGW_GMP_VERS%.tar.xz"
+      #     %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\%MINGW_GMP_VERS%\" && ./configure --prefix=/mingw --enable-fat --enable-shared --disable-static CFLAGS=\"-Wno-attributes -Wno-ignored-attributes\" ABI=32 && make"
+      #     %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\%MINGW_GMP_VERS%\" && make install"
+
+      - name: Install BDB
+        if: steps.restore-msys.outputs.cache-hit != 'true'
+        run: |
+          curl -L "https://download.oracle.com/berkeley-db/%MINGW_BDB_VERS%.tar.gz" -o "%MINGW_BDB_VERS%.tar.gz"
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\"                             && tar -xvf %MINGW_BDB_VERS%.tar.gz && sed -i 's/_tcsclen/strlen/' %MINGW_BDB_VERS%/src/os_windows/os_stat.c"
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\%MINGW_BDB_VERS%\build_unix\" && ../dist/configure --prefix=/mingw --enable-mingw --enable-debug --disable-static --disable-replication --disable-tcl LIBCSO_LIBS=-lwsock32 && make || make"
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\%MINGW_BDB_VERS%\build_unix\" && make install"
+
+      - name: Install PDCurses
+        if: steps.restore-msys.outputs.cache-hit != 'true'
+        run: |
+          curl -L "https://github.com/Bill-Gray/PDCursesMod/archive/refs/tags/v%MINGW_PDCM_VERS%.tar.gz" -o "PDCursesMod-%MINGW_PDCM_VERS%.tar.xz"
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\"                                      && tar -xvf PDCursesMod-%MINGW_PDCM_VERS%.tar.xz"
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\PDCursesMod-%MINGW_PDCM_VERS%\wincon\" && make INFOEX=N CHTYPE_64=Y DEBUG=Y DLL=Y DLLNAME=libpdcurses LIBNAME=libpdcurses.dll"
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\PDCursesMod-%MINGW_PDCM_VERS%\wingui\" && make CHTYPE_64=Y DEBUG=Y DLL=Y DLLNAME=libpdcurses LIBNAME=libpdcurses.dll"
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\PDCursesMod-%MINGW_PDCM_VERS%\vt\"     && make CHTYPE_64=Y DEBUG=Y DLL=Y DLLNAME=libpdcurses LIBNAME=libpdcurses.dll CFLAGS=\"-Wall -Wextra -pedantic -g -DPDCDEBUG -fPIC -DPDC_DLL_BUILD\""
+          echo #define CHTYPE_64 > "PDCursesMod-%MINGW_PDCM_VERS%\pdcurses.h" && echo #define PDC_DLL_BUILD >> "PDCursesMod-%MINGW_PDCM_VERS%\pdcurses.h" && echo #include "pdcurses/curses.h" >> "PDCursesMod-%MINGW_PDCM_VERS%\pdcurses.h"
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\PDCursesMod-%MINGW_PDCM_VERS%\" && install wincon/libpdcurses.dll.a /mingw/lib/"
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\PDCursesMod-%MINGW_PDCM_VERS%\" && install wincon/libpdcurses.dll /mingw/bin/"
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\PDCursesMod-%MINGW_PDCM_VERS%\" && install wincon/libpdcurses.dll /mingw/bin/libpdcurses-wincon.dll"
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\PDCursesMod-%MINGW_PDCM_VERS%\" && install wingui/libpdcurses.dll /mingw/bin/libpdcurses-wingui.dll"
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\PDCursesMod-%MINGW_PDCM_VERS%\" && install vt/libpdcurses.dll /mingw/bin/libpdcurses-vt.dll"
+          %MSYS_BIN%\bash -lc "install -d /mingw/include/pdcurses"
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\PDCursesMod-%MINGW_PDCM_VERS%\" && install -m 0644 curses.h panel.h term.h /mingw/include/pdcurses/"
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\PDCursesMod-%MINGW_PDCM_VERS%\" && install -m 0644 pdcurses.h /mingw/include/"
+
+      - name: Cleanup MSYS1 env
+        if: steps.restore-msys.outputs.cache-hit != 'true'
+        run: |
+          rmdir /Q /S C:\MinGW\docs
+          rmdir /Q /S C:\MinGW\var
+          del /Q C:\MinGW\bin\gdb.exe
+
+      - name: Save MSYS env
+        if: steps.restore-msys.outputs.cache-hit != 'true'
+        uses: actions/cache/save@v3
+        with:
+          key: cache-msys
+          path: |
+            ${{ env.MSYS_ROOT }}
+
+      - name: Download CJSON sources
+        run: |
+          curl -L "https://github.com/DaveGamble/cJSON/archive/refs/tags/v%MINGW_CJSON_VERS%.tar.gz" -o "cjson-%MINGW_CJSON_VERS%.tar.xz"
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\" && tar -xvf cjson-%MINGW_CJSON_VERS%.tar.xz"
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\" && cp cjson-%MINGW_CJSON_VERS%/cJSON.[ch] ./libcob/"
+
+      - name: Bootstrap GnuCOBOL
+        run: |
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\" && sed -i 's/AM_PROG_AR/m4_ifdef\(\[AM_PROG_AR\], \[AM_PROG_AR\]\)/g' ./configure.ac"
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\" && sed -i 's/po extras doc tests/po extras tests/g' ./Makefile.am"
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\" && ./autogen.sh"
+
+      - name: Configure GnuCOBOL
+        run: |
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\" && sed -i 'N;s/else/else :;/g' ./configure"
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\" && sed -i 's/\} else \:;/} else/g' ./configure"
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\" && ./configure"
+
+      - name: Upload config.log
+        uses: actions/upload-artifact@v3
+        if: failure()
+        with:
+          name: config.log
+          path: _build/config.log
+
+      - name: Build GnuCOBOL
+        run: |
+          %MSYS_BIN%\bash -lc "cd \"%GITHUB_WORKSPACE%\" && make"
diff --git a/.github/workflows/windows-msys2-bdb.yml b/.github/workflows/windows-msys2-bdb.yml
new file mode 100644
index 000000000..fb148555f
--- /dev/null
+++ b/.github/workflows/windows-msys2-bdb.yml
@@ -0,0 +1,95 @@
+name: Windows MSYS2 BDB (build only)
+
+on:
+  pull_request:
+    branches: [ gc4 ]
+  push:
+    branches: [ gc3_to_gc4 ]
+  # manual run in actions tab - for all branches
+  workflow_dispatch:
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - windows-latest
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Install packages
+        uses: msys2/setup-msys2@v2
+        with:
+          update: true
+          install: autoconf automake libtool make mingw-w64-x86_64-ncurses mingw-w64-x86_64-libxml2 mingw-w64-x86_64-cjson mingw-w64-x86_64-db mingw-w64-x86_64-gmp libdb-devel mingw-w64-x86_64-gcc flex bison gmp-devel help2man texinfo gettext-devel
+
+      - name: Set git user
+        run: |
+          git config --global user.name github-actions
+          git config --global user.email github-actions-bot@users.noreply.github.com
+
+      - name: bootstrap
+        run: |
+          ./autogen.sh
+          autoconf
+          autoreconf --install --force
+        shell: msys2 {0}
+
+      - name: Build environment setup
+        run: |
+          mkdir _build
+        shell: msys2 {0}
+
+      - name: configure
+        run: |
+          cd _build
+          ../configure --with-db --with-indexed=db --enable-cobc-internal-checks --enable-hardening --prefix /opt/cobol/gnucobol --exec-prefix /opt/cobol/gnucobol
+        shell: msys2 {0}
+
+      - name: Upload config.log
+        uses: actions/upload-artifact@v3
+        if: failure()
+        with:
+          name: config.log
+          path: _build/config.log
+
+      - name: make
+        run: |
+          sed -i '/#include <libxml\/xmlwriter.h>/a \#include <libxml\/parser.h>' libcob/common.c
+          sed -i '/#include <libxml\/xmlwriter.h>/a \#include <libxml\/parser.h>' libcob/mlio.c
+          cd _build
+          make --jobs=$(($(nproc)+1))
+        shell: msys2 {0}
+
+      - name: install
+        run: |
+          cd _build
+          make install
+          find /opt/cobol > install.log
+        shell: msys2 {0}
+
+      - name: Upload install.log
+        uses: actions/upload-artifact@v3
+        with:
+          name: install.log
+          path: _build/install.log
+
+      - name: check
+        continue-on-error: true
+        run: |
+          sed -i '/AT_SETUP(\[ACCEPT OMITTED (SCREEN)\])/a AT_SKIP_IF(\[true\])' tests/testsuite.src/run_accept.at
+          cd _build/tests
+          make check TESTSUITEFLAGS="--jobs=$(($(nproc)+1))"
+        shell: msys2 {0}
+
+      - name: Upload testsuite.log
+        uses: actions/upload-artifact@v3
+        with:
+          name: testsuite.log
+          path: _build/tests/testsuite.log
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 000000000..6f6278e4e
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,82 @@
+*~
+*.la
+.libs
+*.lo
+*.o
+*.so
+
+.deps
+Makefile.in
+
+/aclocal.m4
+/aminclude_static.am
+/autom4te.cache
+/bin/cob-config
+/bin/cob-config.1
+/bin/cobcrun
+/bin/cobcrun.1
+/bin/cobfile
+/bin/gcdiff
+/build
+/cobc/cobc
+/cobc/cobc.1
+/cobc/parser.c
+/cobc/parser.h
+/cobc/parser.output
+/cobc/pplex.c
+/cobc/ppparse.c
+/cobc/ppparse.h
+/cobc/scanner.c
+/config.h
+/config.h.in
+/config.log
+/config.status
+/configure
+/doc/cbchelp.tex
+/doc/cbconf.tex
+/doc/cbexceptions.tex
+/doc/cbhelp.tex
+/doc/cbintr.tex
+/doc/cbmnem.tex
+/doc/cbrese.tex
+/doc/cbrunt.tex
+/doc/cbsyst.tex
+/doc/gnucobol.info
+/doc/stamp-vti
+/doc/version.texi
+/libtool
+/Makefile
+/po/en@boldquot.po
+/po/en@quot.po
+/po/*.gmo
+/po/POTFILES
+/pre-inst-env
+/stamp-h1
+/tarstamp.h
+/tests/atconfig
+/tests/atlocal
+/tests/cobol85/copy/
+/tests/cobol85/copyalt/
+/tests/cobol85/DB/
+/tests/cobol85/EXEC85
+/tests/cobol85/EXEC85.cob
+/tests/cobol85/IC/
+/tests/cobol85/IF/
+/tests/cobol85/IX/
+/tests/cobol85/NC/
+/tests/cobol85/newcob.val
+/tests/cobol85/OB/
+/tests/cobol85/RL/
+/tests/cobol85/RW/
+/tests/cobol85/SG/
+/tests/cobol85/SM/
+/tests/cobol85/SQ/
+/tests/cobol85/ST/
+/tests/cobol85/summary.log
+/tests/package.m4
+/tests/run_prog_manual.sh
+/tests/testsuite
+/tests/testsuite.dir/
+/tests/testsuite.log
+/tests/testsuite_manual
+/build_aux/ar-lib