Adding third party libraries and tools

ROOT
1

Hi,

Am a new user, and pardon me if my questions are too basic.

I would like to use ROOT command line environment to test out a macro with third party libraries. i.e the macro has custom libraries such as IT++. Is it possible to do this in CINT?

Appreciate it if some one can help.

Thank you.

2

Hi,

You can indeed use external libraries in your macro with (for example): gSystem->Load("otherLibrary")

Cheers, Bertrand.

3

Thank you.

I finally got it to work. I had to run your command first in the root cling session, and then run .x script.C.
Previously, I added the command within the script itself, and it was giving me all kinds of errors.

As a follow up: Is it possible to start root interpreter by loading a few libraries- in some kind of .rootrc file.
I did try this, but it didn’t work. Thanks again for your time.

4

Also,this works, as it loads the library. I wonder if there is cleaner way, such as keeping the expression gSystem -> … saved in a logon file, which is loaded on startup?

root -e “gSystem->Load(“libTP”)”

5

You can use the rootlogon.C macro (just search the forum for it…)

6

Thank you. Yes, this whole workflow works fine.