Adding .desktop session file to autoinstall

Makefile

@@ -39,10 +39,14 @@ install: all
 	chmod 644 ${DESTDIR}${MANPREFIX}/man1/dwm.1
 	cp -f startdwm ${DESTDIR}${PREFIX}/bin
 	chmod 755 ${DESTDIR}${PREFIX}/bin/startdwm
+	cp -f dwm-session.desktop /usr/share/xsessions/
+	chmod 644 /usr/share/xsessions/dwm-session.desktop
 
 uninstall:
 	rm -f ${DESTDIR}${PREFIX}/bin/dwm\
 		${DESTDIR}${MANPREFIX}/man1/dwm.1\
-		${DESTDIR}${MANPREFIX}/bin/startdwm
+		${DESTDIR}${PREFIX}/bin/startdwm\
+		/usr/share/xsessions/dwm-session.desktop
+
 
 .PHONY: all clean dist install uninstall

dwm-session.desktop

@@ -0,0 +1,7 @@
+[Desktop Entry]
+Encoding=UTF-8
+Name=dwm
+Comment=Dynamic window manager
+Exec=startdwm
+Icon=dwm
+Type=XSession