From 78c56a5aa38c3fc7e73b5c3de7da2c5607ce9a13 Mon Sep 17 00:00:00 2001
From: Markus Trippelsdorf <markus@trippelsdorf.de>
Date: Fri, 11 Sep 2015 06:09:36 +0000
Subject: [PATCH] Make sure that contrib/download_prerequisites is run from
 correct place

	* download_prerequisites: Make sure that script is run from
	top level source directory.

From-SVN: r227674
---
 contrib/ChangeLog              | 5 +++++
 contrib/download_prerequisites | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/contrib/ChangeLog b/contrib/ChangeLog
index 4493c19dfd17..cfd3abbf3f24 100644
--- a/contrib/ChangeLog
+++ b/contrib/ChangeLog
@@ -1,3 +1,8 @@
+2015-09-11  Markus Trippelsdorf  <markus@trippelsdorf.de>
+
+	* download_prerequisites: Make sure that script is run from
+	top level source directory.
+
 2015-08-27  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	* update-copyright.py (GCCCmdLine): Add libvtv.
diff --git a/contrib/download_prerequisites b/contrib/download_prerequisites
index de0e7c41847d..69403301b813 100755
--- a/contrib/download_prerequisites
+++ b/contrib/download_prerequisites
@@ -24,6 +24,11 @@
 # be downloaded.
 GRAPHITE_LOOP_OPT=yes
 
+if [ ! -e gcc/BASE-VER ] ; then
+	echo "You must run this script in the top level GCC source directory."
+	exit 1
+fi
+
 # Necessary to build GCC.
 MPFR=mpfr-2.4.2
 GMP=gmp-4.3.2
-- 
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