From bbcebaa7ac43f0ce281f8b9901e8070819d8f4be Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Mon, 3 Aug 2015 23:16:59 +0000
Subject: Add make version guard

---
 Makefile | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Makefile b/Makefile
index c602cad..3d49943 100644
--- a/Makefile
+++ b/Makefile
@@ -7,6 +7,11 @@
 
 it: all
 
+make_need := 4.0
+ifeq "" "$(strip $(filter $(make_need), $(firstword $(sort $(make_need) $(MAKE_VERSION)))))"
+fail := $(error Your make ($(MAKE_VERSION)) is too old. You need $(make_need) or newer)
+endif
+
 CC = $(error Please use ./configure first)
 
 STATIC_LIBS :=
-- 
cgit v1.2.3