maint: prepare to use date ranges in copyright notices.

[bison.git] / cfg.mk

diff --git a/cfg.mk b/cfg.mk
index 7ddfaeb35325cce6d319cf5d65777aa22f5718e2..6cd9cdd0dd9cf305b974aaf2597fb76fc151d380 100644 (file)
--- a/cfg.mk
+++ b/cfg.mk
@@ -50,4 +50,4 @@ announcement_Cc_ = \
 
 update-copyright: update-b4-copyright update-package-copyright-year
 update-copyright-env = \
-  UPDATE_COPYRIGHT_FORCE=1
+  UPDATE_COPYRIGHT_FORCE=1 UPDATE_COPYRIGHT_USE_INTERVALS=1