Add macOS build script (Intel / x86_64)

BUILDING.md

@@ -79,7 +79,10 @@ After compilation the plugin can be found in the build directory: `de_rest_plugi
 
 ### macOS
 
+Currently only supported on Intel Macs (x86_64).
+
 Install dependencies via Homebrew.
+
 ```
 brew install qt@5 ninja cmake
 ```
@@ -94,11 +97,14 @@ brew install qt@5 ninja cmake
 
 4. Compile the plugin with CMake
 
-        cmake -DCMAKE_PREFIX_PATH=/usr/local/opt/qt@5 -G Ninja -B build .
-        cmake --build build
+        ./build-macos.sh
 
 After compilation the plugin can be found in the build directory: `de_rest_plugin.dylib`
 
+5. Copy the plugin to the app bundle
+
+        cp build/de_rest_plugin.dylib /Applications/deCONZ.app/Contents/Plugins
+
 ## Build with QMake
 
 **Important:** Building via  QMake is deprecated and will be removed in future.

build-macos.sh

@@ -0,0 +1,35 @@
+#!/usr/bin/env sh
+
+# Helper script to build libde_rest_plugin.dylib
+# that can be copied into deCONZ.app/Contents/Plugins.
+
+MACHINE=$(uname -m)
+QTLOC=/usr/local/opt/qt@5
+
+if [[ "$MACHINE" != "x86_64" ]]; then
+	echo "building currently only supported on x86_64"
+	exit 1
+fi
+
+if [ ! -d "$QTLOC" ]; then
+	echo "Homebrew (x86_64) or Qt5 not installed in $QTLOC"
+	exit 1
+fi
+
+rm -fr build
+
+cmake -Wno-dev -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH=$QTLOC -G Ninja -B build .
+cmake --build build
+
+pushd build
+
+for i in `otool -L libde_rest_plugin.dylib | grep /opt/qt | cut -f1 -d' '`
+do
+	# fixup framework paths
+	# /usr/local/opt/qt@5/lib/         QtWidgets.framework/Versions/5/QtWidgets
+    # @executable_path/../Frameworks/  QtWidgets.framework/Versions/5/QtWidgets
+	newpath=`echo $i | awk '{gsub(/.*qt.*\/lib/,"@executable_path/../Frameworks");}1'`
+	install_name_tool -change $i $newpath libde_rest_plugin.dylib
+done
+
+popd