update Makefile

Makefile

@@ -3,9 +3,18 @@
 CMAKE_BUILD_TYPE 		?= RelWithDebInfo # sane, strip later on
 CMAKE_INSTALL_PREFIX 	?= /usr # panel plugins only work here
 CMAKE_GENERATOR 		?= $(shell (command -v ninja > /dev/null 2>&1 && echo "Ninja") || echo "Unix Makefiles")
-CMAKE_MAKEFILE 			= $(shell test "$(CMAKE_GENERATOR)" = "Ninja" && echo "Makefile" || echo "build.ninja" )
+
+.PHONY: default info cmake install deb rpm
+
 default: cmake
 
+info:
+	@echo '*** you can override these ***'
+	@echo "CMAKE_BUILD_TYPE=$(CMAKE_BUILD_TYPE)"
+	@echo "CMAKE_INSTALL_PREFIX=$(CMAKE_INSTALL_PREFIX)"
+	@echo "CMAKE_GENERATOR=$(CMAKE_GENERATOR)"
+	@echo '*** this one depends on CMAKE_GENERATOR ***'
+
 ./build:
 	cmake -B build -G  $(CMAKE_GENERATOR) -DCMAKE_BUILD_TYPE=$(CMAKE_BUILD_TYPE) -DCMAKE_INSTALL_PREFIX=$(CMAKE_INSTALL_PREFIX)