Ldd rootcint: libCint.so => not found

ROOT
1

Hi all,
I’m using root 5.04/00 under Linux (SL4).
Trying to build an application that includes some root libraries, I discovered a cuople of problems:

  1. [bomben@g5-lab-10 Bailey]$ ldd bailey
    libCore.so => not found
    libCint.so => not found
    libRIO.so => not found
    libNet.so => not found
    libHist.so => not found
    libGraf.so => not found
    libGraf3d.so => not found
    libGpad.so => not found
    libTree.so => not found
    libRint.so => not found

but I’m pretty sure that the Makefile is ok:

INCPATH = -I$(ROOTSYS)/include

LIBS = root-config --cflags --libs

  1. trying to understand what’s wrong, I discovered this:
    [bomben@g5-lab-10 Bailey]$ ldd $ROOTSYS/bin/rootcint
    libCint.so => not found

but:

[bomben@g5-lab-10 Bailey]$ lt $ROOTSYS/lib/
total 86628
-rwxr-xr-x 1 bomben bomben 2087049 May 30 15:01 libCint.so
-rwxr-xr-x 1 bomben bomben 7324813 May 30 15:04 libCore.so
-rwxr-xr-x 1 bomben bomben 1347316 May 30 15:05 libRIO.so
-rwxr-xr-x 1 bomben bomben 1167641 May 30 15:06 libNet.so
-rwxr-xr-x 1 bomben bomben 2544638 May 30 15:07 libMatrix.so
[…]

What’s wrong? Any idea is really welcome… thanks in advance!

Regards,
Marco

2

Hi Marco,

Please make sure $ROOTSYS/lib is in your LD_LIBRARY_PATH

Cheers,
Bertrand.

3

… you were right, LD_LIBRARY_PATH was not properly set… thanks!

Marco

4

Hi
contrarely to the case before, in our installation libCint.so is really missing in lhe root lib directory ( contrarly to libRint.so)

  • Why is it the case?
  • in this installation optionnal?
  • has a flag has to be activated in the config file?

Thank in advance for help
Thibaut

Pb%20execution%20code%20C%20%20%20compil%C3%A9%20utilsant%20root
Pb execution code C compilé utilsant root.jpg2142×1310 453 KB

5

CINT is provided/used by/in ROOT 5.
ROOT 6 provides/uses CLING (you do NOT need CINT with ROOT 6).

6

Thanks for your help
replacing -lCint by -lCling in the makefile and compiling seems to solve the problem
I get a normal user message concerning the number of arguments for call
I have to proceed further in my test with the good input file
Can you explain me:

  • the role of Cint and Cling?
  • can there be potential numerical impact on my computation?
    Regards
    Thibaut
7

I don’t know why you manually list ROOT libraries.
In your makefile, you should define and use something like this:

ROOTCFLAGS := $(shell root-config --cflags)
# use "--libs" or "--glibs" or "--evelibs"
ROOTLIBS := $(shell root-config --ldflags --libs)