feat: port to Tcl 9

Replace the build system.
Adopt the TEA build setup from tcl-augeas.

.github/workflows/ci.yml

@@ -1,21 +1,60 @@
 name: CI
-on: [push]
+on: [push, pull_request]
 jobs:
-  test-autoconf:
-    runs-on: ubuntu-latest
+  bsd:
+    runs-on: ${{ matrix.os.host }}
+    strategy:
+      matrix:
+        os:
+          - name: freebsd
+            architecture: x86-64
+            version: '14.0'
+            host: ubuntu-latest
+          - name: netbsd
+            architecture: x86-64
+            version: '10.0'
+            host: ubuntu-latest
+          - name: openbsd
+            architecture: x86-64
+            version: '7.4'
+            host: ubuntu-latest
     steps:
-    - name: Checkout
-      uses: actions/checkout@v1
-    - name: Install Tcl
-      run: sudo apt install tcl-dev
-    - name: Build and test
-      run: ./autogen.sh && ./configure && make test
-  test-committed-configure:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Run CI script on ${{ matrix.os.name }}
+        uses: cross-platform-actions/[email protected]
+        with:
+          operating_system: ${{ matrix.os.name }}
+          architecture: ${{ matrix.os.architecture }}
+          version: ${{ matrix.os.version }}
+          shell: bash
+          run: |
+            # doas(1) isn't configured on OpenBSD.
+            # See https://github.com/cross-platform-actions/action/issues/75
+            sudo .github/workflows/prepare.sh
+            .github/workflows/test.sh
+
+  linux:
     runs-on: ubuntu-latest
     steps:
-    - name: Checkout
-      uses: actions/checkout@v1
-    - name: Install Tcl
-      run: sudo apt install tcl-dev
-    - name: Build and test
-      run: ./configure && make test
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Install dependencies
+        run: |
+          sudo .github/workflows/prepare.sh
+      - name: Run tests
+        run: |
+          .github/workflows/test.sh
+
+  mac:
+    # The tests segfault on `macos-14` (Apple silicon).
+    runs-on: macos-13
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Install dependencies
+        run: |
+          .github/workflows/prepare.sh
+      - name: Run tests
+        run: |
+          .github/workflows/test.sh

.github/workflows/prepare.sh

@@ -0,0 +1,25 @@
+#! /bin/sh
+set -eu
+
+if [ "$(uname)" = Linux ]; then
+    apt-get install -y tcl-dev
+fi
+
+if [ "$(uname)" = Darwin ]; then
+    brew install tcl-tk
+fi
+
+
+if [ "$(uname)" = FreeBSD ]; then
+    pkg install -y tcl86
+    ln -s /usr/local/bin/tclsh8.6 /usr/local/bin/tclsh
+fi
+
+if [ "$(uname)" = NetBSD ]; then
+    pkgin -y install tcl
+fi
+
+if [ "$(uname)" = OpenBSD ]; then
+    pkg_add -I tcl%8.6
+    ln -s /usr/local/bin/tclsh8.6 /usr/local/bin/tclsh
+fi

.github/workflows/test.sh

@@ -0,0 +1,10 @@
+#! /bin/sh
+set -eu
+
+if [ "$(uname)" = Darwin ]; then
+    ./configure --with-tcl="$(brew --prefix tcl-tk)"/lib
+else
+    ./configure
+fi
+
+make test

.gitignore

@@ -1,16 +1,21 @@
+*.sublime-*
+*.swp
+*.vscode/
+*~
+/attic/
+/tcl-duktape.wiki/
+
 # Generated by configure
+*.cache
 Makefile
 config.log
 config.status
 libtclduktape.syms
 pkgIndex.tcl
 
 # Generated by build
-tcl-duktape-amalgamation.c
-tcl-duktape-amalgamation.o
-duktape.o
-libtclduktape.so
-libtclduktape.dll
-libtclduktape.a
-libtclduktape.lib
-tcl-duktape.o
+*.a
+*.dll
+*.lib
+*.o
+*.so

LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2015-2019, 2020, 2023 D. Bohdan and contributors
+Copyright (c) 2015-2019, 2020, 2023-2024 D. Bohdan and contributors
 listed in AUTHORS
 
 Permission is hereby granted, free of charge, to any person obtaining a copy