From f9e98dae8224b1391a20b58d85b95d43976b7c59 Mon Sep 17 00:00:00 2001
From: ralph <ralph@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Wed, 25 Mar 2009 19:51:32 +0000
Subject: [PATCH] added m4 to prereq check, thanks to Gerph

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@15043 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 include/prereq-build.mk | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/prereq-build.mk b/include/prereq-build.mk
index 0b396c83d..1cdcd0f2c 100644
--- a/include/prereq-build.mk
+++ b/include/prereq-build.mk
@@ -148,3 +148,7 @@ endef
 $(eval $(call Require,getopt-extended, \
 	Please install an extended getopt version that supports --long \
 ))
+
+$(eval $(call RequireCommand,m4, \
+	Please install GNU m4 \
+))