1 files changed, 6 insertions, 0 deletions
diff --git a/autogen.sh b/autogen.sh
index 3e26a18305..27417daf76 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -1,4 +1,8 @@
 #!/bin/sh
+# Copyright (c) 2013-2016 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
 set -e
 srcdir="$(dirname $0)"
 cd "$srcdir"
@@ -6,4 +10,6 @@ if [ -z ${LIBTOOLIZE} ] && GLIBTOOLIZE="`which glibtoolize 2>/dev/null`"; then
   LIBTOOLIZE="${GLIBTOOLIZE}"
   export LIBTOOLIZE
 fi
+which autoreconf >/dev/null || \
+  (echo "configuration failed, please install autoconf first" && exit 1)
 autoreconf --install --force --warnings=all