From 5dba5107f7e1399aaeb8b4fd9d9f6b59bad509fc Mon Sep 17 00:00:00 2001
From: Malik Shahzad Muzaffar <shahzad.malik.muzaffar@cern.ch>
Date: Thu, 26 Aug 2021 08:55:56 +0200
Subject: [PATCH] Update tensorflow-sources.file

---
 tensorflow-sources.file | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tensorflow-sources.file b/tensorflow-sources.file
index f3c287acc50..57c109adac1 100644
--- a/tensorflow-sources.file
+++ b/tensorflow-sources.file
@@ -94,7 +94,10 @@ echo "opt_einsum_archive:"                  >> ${TF_CMS_EXTERNALS}
 export TF_SYSTEM_LIBS=$(cat ${TF_CMS_EXTERNALS} | sed 's|:.*||' | tr "\n" "," | sed 's|,*$||')
 
 # clear the build dir and configure
-rm -rf ../build
+if [ -d ../build ] ; then
+  chmod -R u+w  ../build
+  rm -rf ../build
+fi
 ./configure
 
 #Generate Python wrappers so that we can use PYTHON*PATH env