ROOT macro does not compile in OSx

[Ahmed_Mustahid]

I am beginner with ROOT macros.
When I try to compile the following code,

|#include "TCanvas.h"
#include "TROOT.h"
#include "TGraphErrors.h"
#include "TF1.h"
#include "TLegend.h"
#include "TArrow.h"
#include "TLatex.h"
#include "TH1.h"
void macro5(){


  auto cnt_r_h= new TH1F("count_rate","Count Rate;N_{Counts};#occurences",100,-0.5,15.5);

  auto mean_count=3.6f;
  TRandom3 rndgen;

  for(int imeas=0;imeas<400;imeas++){cnt_r_h->Fill(rndgen.Poisson(mean_count));}

  auto c= new TCanvas();
  cnt_r_h->Draw();

   auto c_norm= new TCanvas();
   cnt_r_h->DrawNormalized();

  cout << "Moments of distribution: \n "
       << "Mean         "<< cnt_r_h->GetMean();

}

the following error appears

You are probably missing the definition of std::__1::basic_ostream<char, std::__1::char_traits<char> >& std::__1::operator<<<std::__1::char_traits<char> >(std::__1::basic_ostream<char, std::__1::char_traits<char> >&, char const*)
Maybe you need to load the corresponding shared library?

But it happens only in the MacOs pc I am using.
Expected output is displayed when I execute the same code in my school’s official server.
Would anyone please help me to find out the exact reason behind the problem?
Thank you.

[Danilo]

Hi Ahmed,

I tried to run your macro on linux and osx (10.13), ROOT 6.12/06, with root -b -q and it works for me: if by “compile” you mean use aclic, I am not sure how necessary it is, but if you want to you need to complete the set of headers you include.

Cheers,
D