+# Output directory variable for use in pattern rules.
+# This is intended for internal use only, hence the explicit override
+# definition.
+override OUTPUT_DIR = $(BUILD_DIR)
+
+# Final install directory for widgets
+DEST = $(OUTPUT_DIR)
+
+# Default build type for release builds
+BUILD_TYPE = release
+
+.PHONY: all help update install distclean
+.PHONY: clean clean-release clean-debug clean-all
+.PHONY: configure configure-release configure-debug
+.PHONY: build build-release build-debug build-all
+.PHONY: package package-release package-debug package-all