From 8089c00979a5b089cff592c6b91420e595657167 Mon Sep 17 00:00:00 2001
From: Bruno Haible <bruno@clisp.org>
Date: Sun, 6 Jan 2019 22:30:13 +0100
Subject: maintainer-makefile: Make the configure.ac section optional.

* top/maint.mk (GREP, SED): Define if not defined.
---
 top/maint.mk | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'top/maint.mk')

diff --git a/top/maint.mk b/top/maint.mk
index 4b574103a3..4e37efeb56 100644
--- a/top/maint.mk
+++ b/top/maint.mk
@@ -21,6 +21,12 @@
 # ME := $(word $(words $(MAKEFILE_LIST)),$(MAKEFILE_LIST))
 ME := maint.mk
 
+# These variables ought to be defined through the configure.ac section
+# of the module description. But some packages import this file directly,
+# ignoring the module description.
+GREP ?= grep
+SED ?= sed
+
 # Helper variables.
 _empty =
 _sp = $(_empty) $(_empty)
-- 
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