__VERSION=$(shell date +%Y%m%d)
__OLDVER=$(shell cat configure.ac | grep AC_INIT | sed -e "s|\[|\\\[|g" -e "s|\]|\\\]|g")

version:
	@echo "/* AUTOMATICALLY GENERATED - DO NOT EDIT MANUALLY */" > version.h
	@echo "#ifndef W_SCAN_VERSION_H" >> version.h
	@echo "#define W_SCAN_VERSION_H" >> version.h
	@echo "unsigned version=$(__VERSION);" >> version.h
	@echo "#endif" >> version.h
	@echo "" >> version.h
	@chmod a-x version.h
	@sed -i -e "s|$(__OLDVER)|AC_INIT(\[$(PACKAGE)\]\, \[$(__VERSION)\])|" configure.ac
	autoconf