Compiling from C++

ROOT
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1

Hi!
I’ve tried to install the last version of ROOT on Ubuntu 16.04 LTS. I’ve programs that works on ROOT, because in another computer they compile computer does not. When I try to compile a program it appears this:

/usr/bin/ld: impossibile trovare -lGraf3d
/usr/bin/ld: impossibile trovare -lPostscript
/usr/bin/ld: impossibile trovare -lPhysics
collect2: error: ld returned 1 exit status

I don’t know what it means in first place. In second place I don’t know how to solve the problem. Can you help me?

2

What do you get when you try:
root-config --libs

3

-L/usr/lib/x86_64-linux-gnu -lCore -lCint -lRIO -lNet -lHist -lGraf -lGraf3d -lGpad -lTree -lRint -lPostscript -lMatrix -lPhysics -lMathCore -lThread -pthread -lm -ldl -rdynamic

I get this

4

It seems to me that you try to use Ubuntu’s provided ROOT 5… If that’s the case, you probably miss some of its packages (i.e. you need to install them).
However, I think you’d better uninstall Ubuntu’s ROOT 5 and take the latest ROOT 6 (the ROOT Team provides a “ready to use” binary distribution for Ubuntu 16.04).

5

How can I uninstall it from the terminal?

6

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