Add missing clean-local.

tools/Makefile.am

@@ -70,3 +70,6 @@ udev/libsane.rules: $(wildcard ${top_srcdir}/doc/descriptions/*.desc) $(wildcard
 hal/libsane.fdi: $(wildcard ${top_srcdir}/doc/descriptions/*.desc) $(wildcard ${top_srcdir}/doc/descriptions-external/*.desc) sane-desc
 	@./sane-desc -m hal -s ${top_srcdir}/doc/descriptions:${top_srcdir}/doc/descriptions-external \
 	   -d 0 > $@
+
+clean-local:
+	rm -f $(HOTPLUG)

tools/Makefile.in

@@ -571,7 +571,7 @@ maintainer-clean-generic:
 	-test -z "$(BUILT_SOURCES)" || rm -f $(BUILT_SOURCES)
 clean: clean-am
 
-clean-am: clean-binPROGRAMS clean-generic clean-libtool \
+clean-am: clean-binPROGRAMS clean-generic clean-libtool clean-local \
 	clean-noinstPROGRAMS mostlyclean-am
 
 distclean: distclean-am
@@ -631,8 +631,8 @@ uninstall-am: uninstall-binPROGRAMS uninstall-binSCRIPTS
 .MAKE: install-am install-strip
 
 .PHONY: CTAGS GTAGS all all-am check check-am clean clean-binPROGRAMS \
-	clean-generic clean-libtool clean-noinstPROGRAMS ctags \
-	distclean distclean-compile distclean-generic \
+	clean-generic clean-libtool clean-local clean-noinstPROGRAMS \
+	ctags distclean distclean-compile distclean-generic \
 	distclean-libtool distclean-tags distdir dvi dvi-am html \
 	html-am info info-am install install-am install-binPROGRAMS \
 	install-binSCRIPTS install-data install-data-am install-dvi \
@@ -669,6 +669,9 @@ udev/libsane.rules: $(wildcard ${top_srcdir}/doc/descriptions/*.desc) $(wildcard
 hal/libsane.fdi: $(wildcard ${top_srcdir}/doc/descriptions/*.desc) $(wildcard ${top_srcdir}/doc/descriptions-external/*.desc) sane-desc
 	@./sane-desc -m hal -s ${top_srcdir}/doc/descriptions:${top_srcdir}/doc/descriptions-external \
 	   -d 0 > $@
+
+clean-local:
+	rm -f $(HOTPLUG)
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.
 .NOEXPORT: