ROOT on MacOS X

ROOT on MacOS X requires X11 to run interactively. If you have not yet installed X11, install it.

As of ROOT v.3.01.05, MacOS X is officially supported. Consequently, the recent ROOT versions should compile and run out of the box unless you need modules that require gfortran.
So now building "ROOT" is fairly straightforward.
Moreover some official binary distributions for MacOS 10.4 are availabe. If you just want to use ROOT, there is no need for you to compile it. The instruction given below is for those who might want to build it themselves or to use features that require gfortran.

[1] Compilation Conditions

MacOS X Release 10.4.2
standard Mach Kernel (Darwin 8.9.1)
gcc-4.2.0-svn20061005a
Apple's X11 for MacOS X
CERNLIB-2006
[2] Compilation Procedure

If you want to try the current CVS tree, do

$ export CVSROOT=:pserver:cvs@root.cern.ch:/user/cvs
$ cvs login
(Logging in to cvs@root.cern.ch)
CVS password: cvs
$ cvs -z3 checkout root

or if you just want to use the production version, do

$ tar -zxvf <somewhere>/root_v5.17.02.source.tar.gz

then follow the steps below:

$ tar -zxvf <somewhere>/pythia6.tar.gz
$ cd pythia6
$ patch -p1 -s < <somewhere>/pythia6409-gfortran.patch
$ ./makePythia6.macosx
$ mkdir ../root/lib
$ cp -p libPythia6.* ../root/lib
$ cd ../root
$ export ROOTSYS=`pwd`
$ export DYLD_LIBRARY_PATH=$ROOTSYS/lib
$ export PATH=$ROOTSYS/bin:$PATH
$ patch -p1 -s < <somewhere>/root_v5.15.02-macosx.patch
$ ./configure --with-pythia6-libdir=`pwd`/lib --enable-minuit2 --enable-mathcore --enable-mathmore --enable-roofit
$ make

where <somewhere> stands for a directory into which you downloaded the source tarballs and my private patches for root to compile with gfortran.

[3] Installation of a Precompiled Binary Package

Thanks to Remi Mommsen and the ROOT team, ROOT for MacOS X is now available as a Fink package from the official ROOT site.

Alternatively, you can use an RPM package through APT/RPM as

$ su
# apt-get update
# apt-get install root
# apt-get clean

After installing ROOT in either way, make a symbolic link:

# ln -s root_v5.17.02-macosx10.4-i386 /opt/root/pro
# exit

Then set some environmental variables:

$ export ROOTSYS=/opt/root/pro
$ export DYLD_LIBRARY_PATH=$DYLD_LIBRARY_PATH:$ROOTSYS/lib
$ export PATH=$PATH:$ROOTSYS/bin

Now you are ready to use ROOT.

Back to Keisuke Fujii's HEP on X Page
keisuke.fujii@kek.jp October 10, 2006