(signatures): Define with ?=, so it's easy to override.

diff --git a/Makefile.maint b/Makefile.maint
index 9724fffe36fd32c8f233bd15f17de45ce9cd92fe..0668af20ab0bd3f244ec645237a40cdf6573a830 100644 (file)
--- a/Makefile.maint
+++ b/Makefile.maint
@@ -234,7 +234,7 @@ xd-delta = $(PACKAGE)-$(PREV_VERSION)-$(VERSION).xdelta
 news-r1 = /^[^ ].*$(THIS_VERSION_REGEXP)[]:]/
 news-r2 = /^[^ ].*$(PREV_VERSION_REGEXP)[]:]/
 
-signatures = $(distdir).tar.bz2.sig $(distdir).tar.gz.sig
+signatures ?= $(distdir).tar.bz2.sig $(distdir).tar.gz.sig
 %.sig: %
        gpg --detach-sign $<