maint: update for gnulib's recent update-copyright changes

[bison.git] / cfg.mk

diff --git a/cfg.mk b/cfg.mk
index 2b6041accd8b957608ae8d6e90f43a26d2e0b343..5c74313f65876c7349b5a427cef6d272a01db845 100644 (file)
--- a/cfg.mk
+++ b/cfg.mk
@@ -42,3 +42,7 @@ local-checks-to-skip = changelog-check
 gnulib_dir = $(srcdir)/../../gnulib
 
 bootstrap-tools = autoconf,automake,flex,gnulib
+
+update-copyright: update-b4-copyright
+update-copyright-env = \
+  UPDATE_COPYRIGHT_FORCE=1 UPDATE_COPYRIGHT_USE_INTERVALS=1