# HG changeset patch
# User Joel E. Denny <jdenny@clemson.edu>
# Date 1250277980 14400
# Node ID 5c2855361aa18c046c431f4b249504545de2df72
# Parent  6f88af728ad10dff3b8530eee8e1c436e7c36a32
maint.mk: support update-copyright-env

* top/maint.mk (update-copyright-env): Define place-holder.
(update-copyright): Expand $(update-copyright-env) before
invoking update-copyright.

diff --git a/ChangeLog b/ChangeLog
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2009-08-14  Joel E. Denny  <jdenny@clemson.edu>
+
+	maint.mk: support update-copyright-env
+	* top/maint.mk (update-copyright-env): Define place-holder.
+	(update-copyright): Expand $(update-copyright-env) before
+	invoking update-copyright.
+
 2009-08-14  Joel E. Denny  <jdenny@clemson.edu>
 
 	update-copyright: implement forced reformatting
diff --git a/top/maint.mk b/top/maint.mk
--- a/top/maint.mk
+++ b/top/maint.mk
@@ -776,6 +776,10 @@
 # define it in cfg.mk and set this variable to its name.
 update-copyright-local ?=
 
+# If you want to set UPDATE_COPYRIGHT_* environment variables,
+# put the assignments in this variable.
+update-copyright-env ?=
+
 # Run this rule once per year (usually early in January)
 # to update all FSF copyright year lists in your project.
 update-copyright-exclude-regexp ?= (^|/)COPYING$$
@@ -783,4 +787,4 @@
 update-copyright: $(update-copyright-local)
 	grep -l -w Copyright $$($(VC_LIST_EXCEPT))		\
 	  | grep -v -E '$(update-copyright-exclude-regexp)'	\
-	  | xargs $(build_aux)/$@
+	  | $(update-copyright-env) xargs $(build_aux)/$@