CompileAndInstallRoot

Architecture 64bit

Getting the source code

• Connect to m1 as root and download

cd /user/cmssoft/
mkdir root_5.32.00
cd root_5.32.00
wget ftp://root.cern.ch/root/root_v5.32.00.source.tar.gz
cd ..
chown -R srugovac.localusers root_5.32.00/

Compiling the code

• Connect on m2 as a srugovac

cd /user/cmssoft/root_5.32.00
./configure --enable-dcache --enable-roofit --enable-minuit2 --enable-mathmore --enable-asimage
make

Extra steps

• copy the libDCache files from the software area:

cp /sandbox/cmss/slc5_amd64_gcc434/lcg/root/5.30.02-cms6/lib/libDCache.* /user/cmssoft/root_5.30.02/root/lib/

Make sure it is coming from the same ROOT version here is 5.30.02 .

• tell users to adapt there LD_LIBRARY_PATH in the following way:
• with bash

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/sandbox/cmss/slc5_amd64_gcc434/cms/cmssw/CMSSW_4_2_8/external/slc5_amd64_gcc434/lib

• with tcsh

setenv LD_LIBRARY_PATH $LD_LIBRARY_PATH:/sandbox/cmss/slc5_amd64_gcc434/cms/cmssw/CMSSW_4_2_8/external/slc5_amd64_gcc434/lib

Architecture 32bit

Getting the source code

• Connect to m1 as root and download

cd /user/cmssoft/
mkdir root_5.32.00
cd root_5.32.00
wget ftp://root.cern.ch/root/root_v5.32.00.source.tar.gz
cd ..
chown -R srugovac.localusers root_5.32.00/

• Connect to m2 as root and install manually some needed libraries

yum install libXpm-devel.i386 libXpm-devel.i386 libXft-devel.i386 libXext-devel.i386 freetype-devel.i386 libjpeg-devel.i386
yum install libpng-devel-1.2.10-7.1.el5_3.2.i386

Newer versions of ROOT might need also other development libraries. If it is the case, ./configure will complain for missing libraries.

Compiling the code

• Still in m2 as srugovac

cd /user/cmssoft/root_5.32.00
./configure linux --enable-dcache --enable-roofit --enable-minuit2 --enable-mathmore --enable-asimage
make