windows installer

Originally committed as revision 2263 to svn://svn.ffmpeg.org/ffmpeg/trunk

Makefile

@@ -111,12 +111,18 @@ ffplay.o: ffplay.c
 videohook: .libs
 	$(MAKE) -C vhook all
 
+.PHONY: install
+
 install: all install-man $(INSTALLVHOOK)
 	$(MAKE) -C libavcodec install
 	$(MAKE) -C libavformat install
 	install -d $(prefix)/bin
 	install -c -s -m 755 $(PROG) $(prefix)/bin
 
+# create the window installer
+wininstaller: all install
+	makensis ffinstall.nsi
+
 # install man from source dir if available
 install-man:
 	if [ -f $(SRC_PATH)/doc/ffmpeg.1 ] ; then \