Building using installXrootd.sh script

I am preparing to install root 5_34 and I am using $ROOTSYS/build/unix/installXrootd.sh script.
Below is the error message after running
build/unix/installXrootd.sh /opt/xrootd

Linking CXX shared library libXrdClient.so
[ 62%] Built target XrdClient
Linking CXX shared library libXrdServer.so
[ 62%] Built target XrdServer
make: *** [all] Error 2
Problems running make  -j9 

How does one fix this? Thanks.