build-libs.yml

name: Build Portable Tcl/Tk Libraries

on:
  workflow_dispatch:

jobs:
  build:
    runs-on: ubuntu-20.04

    env:
      TCL_VERSION: "8.6.16"

    steps:
      - uses: actions/checkout@v5

      - name: Install build dependencies
        run: |
          sudo apt-get update
          sudo apt-get install -y build-essential libx11-dev libxft-dev libxss-dev

      - name: Build Tcl from source
        run: |
          cd /tmp
          curl -fsSL "https://prdownloads.sourceforge.net/tcl/tcl${TCL_VERSION}-src.tar.gz" -o tcl-src.tar.gz
          tar xf tcl-src.tar.gz
          cd tcl${TCL_VERSION}/unix
          ./configure --prefix=/tmp/tcltk --enable-shared
          make -j$(nproc)
          make install

      - name: Build Tk from source
        run: |
          cd /tmp
          curl -fsSL "https://prdownloads.sourceforge.net/tcl/tk${TCL_VERSION}-src.tar.gz" -o tk-src.tar.gz
          tar xf tk-src.tar.gz
          cd tk${TCL_VERSION}/unix
          ./configure --prefix=/tmp/tcltk --with-tcl=/tmp/tcltk/lib --enable-shared
          make -j$(nproc)
          make install

      - name: Bundle into src/lib
        run: |
          cp /tmp/tcltk/lib/libtcl8.6.so src/lib/libtcl8.6.so
          cp /tmp/tcltk/lib/libtk8.6.so src/lib/libtk8.6.so
          rm -rf src/lib/tcl8.6 src/lib/tk8.6
          cp -r /tmp/tcltk/lib/tcl8.6 src/lib/tcl8.6
          cp -r /tmp/tcltk/lib/tk8.6 src/lib/tk8.6
          chmod 755 src/lib/libtcl8.6.so src/lib/libtk8.6.so

      - name: Commit updated libraries
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add src/lib/
          git commit -m "Update bundled Tcl/Tk ${TCL_VERSION} libraries (built on Ubuntu 20.04)" || echo "No changes"
          git push