Compile ROOT with h2root support

ROOT
1

_ROOT Version: 6.16.00
_Platform: Ubuntu 18.04 64bit
_Compiler: g++ 7.4.0

Hello!

I need to convert some hbook files into root files but I cannot find the h2root program in the bin folder of my ROOT installation. I have both the gfortran and g77 compilers installed. I also have the CERNLIB 2006 library installed in the default path /usr/lib/x86_64-linux-gnu/
But when I run the ROOT configure

 cmake -Dbuiltin_xrootd=ON -DCMAKE_INSTALL_PREFIX=$HOME/Code/ROOT/6-16-00 ../sources

there is no reference to h2root or paw or Fortran.
So my question is: how can I compile ROOT with h2root support?

2

CERNLIB is NOT needed for h2root / g2root (they just need “gfortran” and if you installed “g77”, it may even break the built).

Note: The ROOT team provides ready-to-use binary distributions for some systems, including “Ubuntu 18 gcc7.3”, which you just need to download and unpack.

3

You need to give the option -Dfortran=ON to CMake to enable building the Fortran parts of ROOT, including h2root. Cheers,

4

@amadio
Thank you. That worked!
@Wile_E_Coyote
I am aware of the ROOT binaries for Ubuntu but I prefer to compile ROOT from source because it gives me more control on the ROOT plugins and compiler version.