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We ran into a problem this time with distribution of our linux build for ROOT.  It seems prefix cannot be used, so we must set the ROOTSYS env var for our build.  make install no longer seems to work unless prefix is used, so we are left to prune the resulting ROOT build directories on our own.

redhat3-i686-32bit-gcc32

1. Obtain Fermi's copy of the source from /afs/slac/g/glast/ground/GLAST_EXT/srcExtlibs/root-v5.20.00-gl5.tar.gz and unpack, it will be dumped into a directory named "root"
2. set ROOTSYS to the same directory as the source was checked out into.  cd into the root directory
3. Run configure:
   ./configure linux --fail-on-missing --enable-mysql --with-mysql-incdir=/afs/slac/g/glast/ground/GLAST_EXT/redhat3-i686-32bit-gcc32/mysql/4.1.18/gcc32/include/mysql --with-mysql-libdir=/afs/slac/g/glast/ground/GLAST_EXT/redhat3-i686-32bit-gcc32/mysql/4.1.18/gcc32/lib/mysql --enable-xrootd --enable-python --with-python-incdir=/afs/slac/g/glast/ground/GLAST_EXT/redhat3-i686-32bit-gcc32/python/2.5.1-gl1/gcc32/include/python2.5 --with-python-libdir=/afs/slac/g/glast/ground/GLAST_EXT/redhat3-i686-32bit-gcc32/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-rhel3.log &
4. Build by running "make >& build-rhel3.log &"
5. Update etc/system.rootrc to include the lines:
   # As suggested by Wilko, April, 2009, so that when a job writes to xrootd, missing directories are created upon request.
   XNet.Mkpath: 1
6. Copy the following into $GLAST_EXT using the directory structure:
   ROOT/v5.20.00-gl4/gcc32/
   README bin build-rhel3.log cint config-rhel3.log doc etc fonts icons include lib macros man test tutorials

redhat4-i686-32bit-gcc34

1. Obtain Fermi's copy of the source from /afs/slac/g/glast/ground/GLAST_EXT/srcExtlibs/root-v5.20.00-gl5.tar.gz and unpack, it will be dumped into a directory named "root"
2. set ROOTSYS to the same directory as the source was checked out into.  cd into the root directory
3. Run configure:
   ./configure linux --fail-on-missing --enable-mysql --with-mysql-incdir=/afs/slac/g/glast/ground/GLAST_EXT/redhat4-i686-32bit-gcc34/mysql/4.1.18/gcc34/include/mysql --with-mysql-libdir=/afs/slac/g/glast/ground/GLAST_EXT/redhat4-i686-32bit-gcc34/mysql/4.1.18/gcc34/lib/mysql --enable-xrootd --enable-python --with-python-incdir=/afs/slac/g/glast/ground/GLAST_EXT/redhat4-i686-32bit-gcc34/python/2.5.1-gl1/gcc34/include/python2.5 --with-python-libdir=/afs/slac/g/glast/ground/GLAST_EXT/redhat4-i686-32bit-gcc34/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.log &
4. Build by running "make >& build-rhel4.log &"
5. Update etc/system.rootrc to include the lines:
   # As suggested by Wilko, April, 2009, so that when a job writes to xrootd, missing directories are created upon request.
   XNet.Mkpath: 1
6. Copy the following into $GLAST_EXT using the directory structure:
   ROOT/v5.20.00-gl4/gcc34/
   README bin build-rhel4.log cint config-rhel4.log doc etc fonts icons include lib macros man test tutorials