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2018/12/26 K.Fujii
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1) Install the required packages:
$ sudo apt-get update
$ sudo ap5-get install gsl1-devel clhep22 lcio geant49 root5 cernlib stdhep cmake imake xerces-c

2) Make "proj" tree
$ sudo mkdir -p /Users/proj/soft/lcsoft # on MacOSX, replace /Users by /home on other platforms
$ sudo ln -s Users/proj /proj
$ sudo chown -R <your userid> /proj/soft
$ cd /proj/soft/lcsoft
$ mkdir -p orig
$ cd orig
$ wget http://www-jlc-in.kek.jp/~fujiik/macosx/10.14.Xon10.13/HEPonX/src/lcsoft/lcsoft-src.tar.gz
$ wget http://www-jlc-in.kek.jp/~fujiik/macosx/10.14.Xon10.13/HEPonX/src/lcsoft/data5.tar.gz
$ wget http://www-jlc-in.kek.jp/~fujiik/macosx/10.14.Xon10.13/HEPonX/src/lcsoft/dotrootrc.tar.gz
$ tar -zxvf lcsoft-src.tar.gz -C /proj/soft
$ tar -zxvf data5.tar.gz -C /proj/soft
$ tar -zxvf dotrootrc.tar.gz -C ~
$ cd /proj/soft/lcsoft/
$ vi bin/setup.sh     # check root, clhep, geant4, lcio, pythia6, stdhep, cernlib, etc.
$ source bin/setup.sh # setup environmental variables
$ sh bin/lcbuild.sh >& make.log & # build the lcsoft package
$ tail -f make.log
...