Linux: add install target to makefile

Vocaluxe/Linux/Package/Vocaluxe.desktop

@@ -0,0 +1,12 @@
+[Desktop Entry]
+Type=Application
+Version=1.0
+Name=Vocaluxe
+Keywords=game;party;singing;
+GenericName=Karaoke
+Icon=INSTALLPATH/Vocaluxe.ico
+Path=INSTALLPATH
+Exec=mono INSTALLPATH/Vocaluxe.exe %U
+Terminal=false
+StartupNotify=false
+Categories=Game;

makefile

@@ -11,3 +11,17 @@ clean:
 	$(MAKE) -C PitchTracker clean
 	$(MAKE) -C Vocaluxe/Lib/Video/Acinerella clean
 	git checkout $(windowsLibs)
+
+INSTALLPATH?=/usr/share/vocaluxe
+WRONG_ARCH=$(shell echo $(ARCH) | sed -e s/x86/x64/ -e s/x64/x86/)
+install:
+	mkdir -p $(DESTDIR)$(INSTALLPATH)
+	cp -ru Output/. $(DESTDIR)$(INSTALLPATH)
+	rm -rf $(DESTDIR)$(INSTALLPATH)/$(WRONG_ARCH)
+
+ICONPATH?=/usr/share/applications
+install_icon:
+	mkdir -p $(DESTDIR)$(ICONPATH)
+	cp Vocaluxe/Linux/Package/Vocaluxe.desktop $(DESTDIR)$(ICONPATH)/
+	sed -i -e 's=INSTALLPATH=$(INSTALLPATH)=' $(DESTDIR)$(ICONPATH)/Vocaluxe.desktop
+