Port small part of master's 8901f32e so future ports are easier.

[bison.git] / cfg.mk

diff --git a/cfg.mk b/cfg.mk
index 66a2bc6fc059176053089617f1df1e8db4b8039f..5c74313f65876c7349b5a427cef6d272a01db845 100644 (file)
--- a/cfg.mk
+++ b/cfg.mk
@@ -43,4 +43,6 @@ gnulib_dir = $(srcdir)/../../gnulib
 
 bootstrap-tools = autoconf,automake,flex,gnulib
 
-update-copyright-local = update-b4-copyright
+update-copyright: update-b4-copyright
+update-copyright-env = \
+  UPDATE_COPYRIGHT_FORCE=1 UPDATE_COPYRIGHT_USE_INTERVALS=1