Port to EL 6 and 8

.github/workflows/el6.yml

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+name: Enterprise Linux 6 CI/CD
+
+on:
+  push:
+    branches: ["**"]
+  pull_request:
+    branches: ["**"]
+  workflow_dispatch:
+
+jobs:
+  build-and-package-el6:
+    name: Build and package on Enterprise Linux 6 (${{ matrix.arch }})
+    # Run on the Ubuntu host so that actions/checkout (Node 20) works; all
+    # CentOS 6 work is done via explicit `docker run centos:6` invocations
+    # below.  Using `container:` at job level would inject Node 20 into the
+    # CentOS 6 container, which fails because CentOS 6 ships glibc 2.12 and
+    # Node 20 requires glibc >= 2.17.
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    strategy:
+      matrix:
+        arch: [x86_64, i686]
+
+    steps:
+      - name: Checkout source
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+
+      - name: Write shared CentOS 6 vault repo helper
+        run: |
+          # CentOS 6 reached EOL; vault.centos.org returns 403 on HTTP so HTTPS
+          # is required.  The x86_64 vault repos are correct for both arches:
+          # CentOS 6 multilib ships i686 packages in the same repositories.
+          # Use printf to avoid a nested heredoc that would break YAML parsing.
+          cat > "$RUNNER_TEMP/setup-el6-repos.sh" << 'SETUP'
+          setup_centos6_vault_repos() {
+              printf '%s\n' \
+                  '[base]' \
+                  'name=CentOS-6 - Base' \
+                  'baseurl=https://vault.centos.org/6.10/os/x86_64/' \
+                  'gpgcheck=1' \
+                  'gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6' \
+                  '' \
+                  '[updates]' \
+                  'name=CentOS-6 - Updates' \
+                  'baseurl=https://vault.centos.org/6.10/updates/x86_64/' \
+                  'gpgcheck=1' \
+                  'gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6' \
+                  '' \
+                  '[extras]' \
+                  'name=CentOS-6 - Extras' \
+                  'baseurl=https://vault.centos.org/6.10/extras/x86_64/' \
+                  'gpgcheck=1' \
+                  'gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6' \
+                  > /etc/yum.repos.d/CentOS-Base.repo
+          }
+          SETUP
+
+      - name: Build and test inside CentOS 6 container
+        run: |
+          cat > "$RUNNER_TEMP/build-el6.sh" << 'SCRIPT'
+          set -ex
+          # shellcheck source=/dev/null
+          . /setup-el6-repos.sh
+          setup_centos6_vault_repos
+
+          # Install base build dependencies
+          yum install -y \
+              gcc make autoconf automake libtool pkgconfig perl \
+              libX11-devel libXtst-devel texinfo rpm-build git
+
+          # 32-bit (i686) extras and compiler wrapper
+          if [ "$TARGET_ARCH" = "i686" ]; then
+              # libgcc.i686 provides /lib/libgcc_s.so.1 needed by gcc -m32
+              yum install -y \
+                  libgcc.i686 glibc-devel.i686 \
+                  libX11-devel.i686 libXtst-devel.i686
+              # Provide i686-redhat-linux-gnu-gcc so --host= works with autoconf
+              printf '#!/bin/sh\nexec gcc -m32 "$@"\n' \
+                  > /usr/local/bin/i686-redhat-linux-gnu-gcc
+              chmod +x /usr/local/bin/i686-redhat-linux-gnu-gcc
+              ln -sf /usr/local/bin/i686-redhat-linux-gnu-gcc \
+                     /usr/local/bin/i686-redhat-linux-gnu-g++
+              # CFLAGS/LDFLAGS are for this build+test step only.
+              # The RPM step drives -m32 via rpmbuild --define "optflags ..."
+              # so these are intentionally not set there.
+              export CFLAGS="-m32 -march=i686 -mtune=generic"
+              export LDFLAGS="-m32"
+              CONFIGURE_HOST="--host=i686-redhat-linux-gnu --build=x86_64-redhat-linux-gnu"
+          else
+              CONFIGURE_HOST=""
+          fi
+
+          cd /workspace
+          make -f Makefile.cvs generate
+          # word-split of $CONFIGURE_HOST is intentional (empty or two flags)
+          # shellcheck disable=SC2086
+          ./configure --disable-gui --disable-doc --disable-xinput2 \
+              $CONFIGURE_HOST
+          make
+          make -C cnee/src man
+          chmod +x tests/e2e_cnee.sh
+          ./tests/e2e_cnee.sh ./cnee/src/cnee
+          SCRIPT
+          docker run --rm \
+            -e TARGET_ARCH="${{ matrix.arch }}" \
+            -v "$PWD:/workspace" \
+            -v "$RUNNER_TEMP/build-el6.sh:/build.sh:ro" \
+            -v "$RUNNER_TEMP/setup-el6-repos.sh:/setup-el6-repos.sh:ro" \
+            centos:6 bash /build.sh
+
+      - name: Create source distribution
+        run: |
+          XNEE_VERSION=$(grep 'AC_INIT' configure.in \
+            | awk 'BEGIN {FS=","} { print $2 }' \
+            | tr -d ' ')
+          # git safe.directory was added in git 2.35.2; ignore errors on older git.
+          git config --global --add safe.directory "$(pwd)" 2>/dev/null || true
+          git archive --prefix="xnee-${XNEE_VERSION}/" HEAD \
+            | gzip > "xnee-${XNEE_VERSION}.tar.gz"
+
+      - name: Build RPM inside CentOS 6 container
+        run: |
+          cat > "$RUNNER_TEMP/rpm-el6.sh" << 'SCRIPT'
+          set -ex
+          # shellcheck source=/dev/null
+          . /setup-el6-repos.sh
+          setup_centos6_vault_repos
+
+          yum install -y \
+              gcc make autoconf automake libtool pkgconfig perl \
+              libX11-devel libXtst-devel texinfo rpm-build
+
+          if [ "$TARGET_ARCH" = "i686" ]; then
+              yum install -y \
+                  libgcc.i686 glibc-devel.i686 \
+                  libX11-devel.i686 libXtst-devel.i686
+              printf '#!/bin/sh\nexec gcc -m32 "$@"\n' \
+                  > /usr/local/bin/i686-redhat-linux-gnu-gcc
+              chmod +x /usr/local/bin/i686-redhat-linux-gnu-gcc
+              ln -sf /usr/local/bin/i686-redhat-linux-gnu-gcc \
+                     /usr/local/bin/i686-redhat-linux-gnu-g++
+          fi
+
+          cd /workspace
+          XNEE_VERSION=$(grep 'AC_INIT' configure.in \
+              | awk 'BEGIN {FS=","} { print $2 }' | tr -d ' ')
+          XNEE_RELEASE=1
+          mkdir -p "$HOME/rpmbuild"/{BUILD,RPMS,SOURCES,SPECS,SRPMS}
+          cp "xnee-${XNEE_VERSION}.tar.gz" "$HOME/rpmbuild/SOURCES/"
+          sed \
+              -e "s/XNEE_VERSION/${XNEE_VERSION}/g" \
+              -e "s/XNEE_RELEASE/${XNEE_RELEASE}/g" \
+              build/SPECS/cnee-el6.spec \
+              > "$HOME/rpmbuild/SPECS/cnee.spec"
+
+          if [ "$TARGET_ARCH" = "i686" ]; then
+              # Set host to i686 so %configure uses our wrapper gcc.
+              # Do not export CFLAGS/LDFLAGS here to avoid polluting %configure.
+              rpmbuild -ba \
+                  --define "_host i686-redhat-linux-gnu" \
+                  --define "_host_alias i686-redhat-linux-gnu" \
+                  --define "_target_cpu i686" \
+                  --define "optflags -O2 -g -m32 -march=i686 -mtune=generic" \
+                  "$HOME/rpmbuild/SPECS/cnee.spec"
+          else
+              rpmbuild -ba "$HOME/rpmbuild/SPECS/cnee.spec"
+          fi
+
+          find "$HOME/rpmbuild/RPMS" "$HOME/rpmbuild/SRPMS" -name "*.rpm" \
+              -exec cp {} /workspace/ \;
+          SCRIPT
+          docker run --rm \
+            -e TARGET_ARCH="${{ matrix.arch }}" \
+            -v "$PWD:/workspace" \
+            -v "$RUNNER_TEMP/rpm-el6.sh:/rpm.sh:ro" \
+            -v "$RUNNER_TEMP/setup-el6-repos.sh:/setup-el6-repos.sh:ro" \
+            centos:6 bash /rpm.sh
+
+      - name: Upload RPM artifact
+        uses: actions/upload-artifact@50769540e7f4bd5e21e526ee35c689e35e0d6874 # v4
+        with:
+          name: cnee-el6-${{ matrix.arch }}-rpm
+          path: "*.rpm"
+          if-no-files-found: error

.github/workflows/el8.yml

@@ -0,0 +1,95 @@
+name: Enterprise Linux 8 CI/CD
+
+on:
+  push:
+    branches: ["**"]
+  pull_request:
+    branches: ["**"]
+  workflow_dispatch:
+
+jobs:
+  build-and-package-el8:
+    name: Build and package on Enterprise Linux 8
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    container:
+      image: almalinux:8
+
+    steps:
+      - name: Enable PowerTools and install build dependencies
+        run: |
+          dnf install -y dnf-plugins-core
+          dnf config-manager --set-enabled powertools
+          dnf install -y \
+            gcc \
+            make \
+            autoconf \
+            automake \
+            libtool \
+            pkgconfig \
+            perl \
+            libX11-devel \
+            libXtst-devel \
+            texinfo \
+            rpm-build \
+            git \
+            xorg-x11-server-Xvfb
+
+      - name: Checkout source
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+
+      - name: Build XNee
+        run: |
+          make -f Makefile.cvs generate
+          ./configure --disable-gui --disable-doc --disable-xinput2
+          make
+          make -C cnee/src man
+
+      - name: Run e2e tests
+        run: |
+          chmod +x tests/e2e_cnee.sh
+          ./tests/e2e_cnee.sh ./cnee/src/cnee
+
+      - name: Create source distribution
+        run: |
+          XNEE_VERSION=$(grep 'AC_INIT' configure.in \
+            | awk 'BEGIN {FS=","} { print $2 }' \
+            | tr -d ' ')
+          # Inside the AlmaLinux container git runs as root while the checkout
+          # directory is owned by the runner user – mark it safe to allow
+          # git archive to work.
+          git config --global --add safe.directory "$(pwd)"
+          # Use git archive to avoid the doc/Makefile.am dia→png generation
+          # that make dist triggers even with --disable-doc.
+          git archive --prefix="xnee-${XNEE_VERSION}/" HEAD \
+            | gzip > "xnee-${XNEE_VERSION}.tar.gz"
+
+      - name: Build RPM package
+        run: |
+          XNEE_VERSION=$(grep 'AC_INIT' configure.in \
+            | awk 'BEGIN {FS=","} { print $2 }' \
+            | tr -d ' ')
+          XNEE_RELEASE=1
+
+          mkdir -p "$HOME/rpmbuild"/{BUILD,RPMS,SOURCES,SPECS,SRPMS}
+
+          cp "xnee-${XNEE_VERSION}.tar.gz" "$HOME/rpmbuild/SOURCES/"
+
+          sed \
+            -e "s/XNEE_VERSION/${XNEE_VERSION}/g" \
+            -e "s/XNEE_RELEASE/${XNEE_RELEASE}/g" \
+            build/SPECS/cnee-el8.spec \
+            > "$HOME/rpmbuild/SPECS/cnee.spec"
+
+          rpmbuild -ba "$HOME/rpmbuild/SPECS/cnee.spec"
+
+          # Copy built binary RPMs and SRPM to the workspace for artifact upload
+          find "$HOME/rpmbuild/RPMS" "$HOME/rpmbuild/SRPMS" -name "*.rpm" -exec cp {} . \;
+
+      - name: Upload RPM artifact
+        uses: actions/upload-artifact@50769540e7f4bd5e21e526ee35c689e35e0d6874 # v4
+        with:
+          name: cnee-el8-rpm
+          path: "*.rpm"
+          if-no-files-found: error

.gitignore

@@ -0,0 +1,77 @@
+# Autoconf / Automake generated files
+Makefile
+Makefile.in
+aclocal.m4
+autom4te.cache/
+autotools/compile
+autotools/config.guess
+autotools/config.sub
+autotools/depcomp
+autotools/install-sh
+autotools/ltmain.sh
+autotools/mdate-sh
+autotools/missing
+autotools/texinfo.tex
+config.h
+config.h.in~
+config.log
+config.status
+configure
+libtool
+stamp-h.in
+stamp-h1
+
+# Build artifacts
+*.o
+*.lo
+*.la
+*.a
+*.so
+*.so.*
+.libs/
+.deps/
+
+# Generated binaries
+cnee/src/cnee
+gnee/src/gnee
+pnee/src/pnee
+libxnee/test/libtest
+libxnee/test/testcallback
+libxnee/test/testdisplay
+libxnee/test/testfeedback
+libxnee/test/testprint
+libxnee/test/testsetget
+
+# Generated documentation
+cnee/src/cnee.1
+cnee/src/cnee.texi
+cnee/src/cnee.texinfo
+cnee/src/cnee.info
+man/xnee.1
+gnee/man/gnee.1
+pnee/man/pnee.1
+doc/xnee.info
+doc/xnee.info-*
+
+# Autoconf backup files
+configure~
+config.h.in~
+
+# Generated data files
+share/xnee.sh
+examples/simple_bash.sh
+
+# Distribution archives
+*.tar.gz
+*.tar.bz2
+config.xnee
+
+# RPM build outputs
+*.rpm
+
+# texinfo version stamp (generated by make)
+doc/stamp-vti
+
+# make dist extraction directories
+xnee-*/
+Xnee-*.tar.gz