...
./configure linux --disable-cern --enable-mysql --enable-xrootd --with-python-incdir=/afs/slac/g/glast/ground/GLAST_EXT/rh9_gcc32/python/2.5.1/include/python2.5 --with-python-libdir=/afs/slac/g/glast/ground/GLAST_EXT/rh9_gcc32/python/2.5.1/lib/python2.5/config --enable-mathcore --enable-mathmore --enable-reflex --enable-cintex --enable-roofit --with-oracle-incdir=/usr/oracle/rdbms/public --with-oracle-libdir=/usr/oracle/lib --enable-minuit2 --enable-unuran --enable-table --enable-explicitlink
./configure linux --fail-on-missing --enable-mysql --enable-xrootd --with-python-incdir=/afs/slac/g/glast/ground/GLAST_EXT/rh9_gcc32opt/python/2.5.1-gl1/gcc32/include/python2.5 --with-python-libdir=/afs/slac/g/glast/ground/GLAST_EXT/rh9_gcc32opt/python/2.5.1-gl1/gcc32/lib/python2.5/config --enable-reflex --enable-cintex --enable-roofit --with-oracle-incdir=/usr/oracle/rdbms/public --with-oracle-libdir=/usr/oracle/lib --enable-minuit2 --enable-unuran --enable-table --enable-explicitlink > & config.log &
./configure linux --fail-on-missing --enable-mysql --with-mysql-incdir=/afs/slac/g/glast/ground/GLAST_EXT/redhat4-i686-32bit/mysql/4.1.18/gcc34/include/mysql --with-mysql-libdir=/afs/slac/g/glast/ground/GLAST_EXT/redhat4-i686-32bit/mysql/4.1.18/gcc34/lib/mysql --enable-xrootd --enable-python --with-python-incdir=/afs/slac/g/glast/ground/GLAST_EXT/redhat4-i686-32bit/python/2.5.1-gl1/gcc34/include/python2.5 --with-python-libdir=/afs/slac/g/glast/ground/GLAST_EXT/redhat4-i686-32bit/python/2.5.1-gl1/gcc34/lib/python2.5/config --enable-reflex --enable-cintex --enable-roofit --with-oracle-incdir=/usr/oracle/rdbms/public --with-oracle-libdir=/usr/oracle/lib --enable-minuit2 --enable-unuran --enable-table --enable-explicitlink > & config-rhel4-3.log &
and then just copied the useful directories to another location
Also, make sure that the etc/system.rootrc file includes the line:
XNet.Mkpath: 1
As suggested by Wilko, April, 2009, so that when a job writes to xrootd, missing directories are created upon request.