Add Makefile and autostart .desktop file

Makefile

@@ -1,7 +1,43 @@
-all: wacomrotate
+#  Copyright (c) 2008, Thomas Jaeger <ThJaeger@gmail.com>
+# 
+#  Permission to use, copy, modify, and/or distribute this software for any
+#  purpose with or without fee is hereby granted, provided that the above
+#  copyright notice and this permission notice appear in all copies.
+# 
+#  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+#  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+#  MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY
+#  SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+#  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+#  OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+#  CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
-wacomrotate: wacomrotate.c
-	gcc -Os -Wall -lX11 -lXrandr wacomrotate.c -o wacomrotate
+DESTDIR  =
+PREFIX   = /usr/local
+BINDIR   = $(PREFIX)/bin
+AUTODIR  = $(PREFIX)/etc/xdg/autostart
+OFLAGS   = -Os
+CFLAGS   = -Wall
+LIBS     = -lX11 -lXrandr
+
+BINARY   = wacomrotate
+SOURCE   = wacomrotate.c
+DESKTOP  = wacomrotate.desktop
+
+all: $(BINARY)
+
+.PHONY: all clean
 
 clean:
-	rm -f wacomrotate
+	$(RM) $(BINARY)
+
+$(BINARY): $(SOURCE)
+	$(CC) $(OFLAGS) $(CFLAGS) $(LIBS) $< -o $@
+
+install: all
+	install -Ds $(BINARY) $(DESTDIR)$(BINDIR)/$(BINARY)
+	install -D -m 644 $(DESKTOP) $(DESTDIR)$(AUTODIR)/$(DESKTOP)
+
+uninstall:
+	$(RM) $(DESTDIR)$(BINDIR)/$(BINARY)
+	$(RM) $(DESTDIR)$(AUTODIR)/$(DESKTOP)

wacomrotate.desktop

@@ -0,0 +1,10 @@
+[Desktop Entry]
+Version=1.0
+Encoding=UTF-8
+Name=wacomrotate
+Comment=Automatically rotate wacom input when the screen is rotated
+Exec=wacomrotate -f
+Terminal=false
+Type=Application
+Categories=
+GenericName=