CI (macOS): builds Intel version with macport

.github/workflows/build-macos-hosts.yml

@@ -26,13 +26,30 @@ jobs:
       - name: uname -a
         run: uname -a
 
-      - name: install required packages
+      - name: install required packages with MacPorts # Homebrew dropped Intel support
+        if: inputs.arch == 'amd64'
+        run: |
+          curl -fsSL https://github.com/macports/macports-base/releases/download/v2.12.6/MacPorts-2.12.6-15-Sequoia.pkg -o "$RUNNER_TEMP/MacPorts.pkg"
+          sudo installer -pkg "$RUNNER_TEMP/MacPorts.pkg" -target /
+          echo /opt/local/bin >> "$GITHUB_PATH"
+          echo /opt/local/sbin >> "$GITHUB_PATH"
+          export PATH=/opt/local/bin:/opt/local/sbin:$PATH
+          sudo port selfupdate
+          sudo port install vulkan-loader vulkan-headers MoltenVK ImageMagick7 chafa lua quickjs-ng jq
+
+      - name: install required packages with Homebrew
+        if: inputs.arch == 'aarch64'
         run: |
           HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK=1 brew update
           HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK=1 brew install --overwrite vulkan-loader vulkan-headers molten-vk imagemagick chafa lua quickjs-ng jq
 
       - name: configure project
-        run: cmake -DSET_TWEAK=Off -DBUILD_TESTS=On .
+        run: |
+          if [ "${{ inputs.arch }}" = "amd64" ]; then
+            export CMAKE_PREFIX_PATH=/opt/local
+            export PKG_CONFIG_PATH=/opt/local/lib/pkgconfig${PKG_CONFIG_PATH:+:$PKG_CONFIG_PATH}
+          fi
+          cmake -DSET_TWEAK=Off -DBUILD_TESTS=On .
 
       - name: build project
         run: cmake --build . --target package --verbose -j4

CMakeLists.txt

@@ -1458,10 +1458,11 @@ if(yyjson_FOUND)
     # `target_link_libraries(yyjson::yyjson)` sets rpath implicitly
 endif()
 
-# Used for dlopen finding dylibs installed by homebrew
-# `/opt/homebrew/lib` is not on in dlopen search path by default
+# Used for dlopen finding dylibs installed by package managers
+# `/opt/homebrew/lib`, `/usr/local/lib` and `/opt/local/lib` are not on the
+# dlopen search path by default
 if(APPLE AND BINARY_LINK_TYPE STREQUAL "dlopen")
-    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-rpath,/opt/homebrew/lib -Wl,-rpath,/usr/local/lib")
+    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-rpath,/opt/homebrew/lib -Wl,-rpath,/usr/local/lib -Wl,-rpath,/opt/local/lib")
 endif()
 
 if(ANDROID)