Re: hworld.cxx won't link on Linux

From: Rene Brun (Rene.Brun@cern.ch)
Date: Wed Dec 01 1999 - 19:24:23 MET


Hi Paul,
My guess is that you have includes from old Root versions left somewhere
in your directories. Several Root classes (including TPaveLabel) had
their signature changed from char* to const char*

Rene Brun

On Wed, 1 Dec 1999, Paul Nord wrote:

> Good Day,
> 
> I ran into a problem linking my code on Linux.  The linker doesn't seem to
> know what to do with the TPaveLabel.  I discovered that hworld.cxx has the same
> problem.
> 
> Paul Nord
> 
> 
> $ make hworld
> g++ -O -Wall -fPIC -I/home/pnord/root/include -c hworld.cxx
> g++ -g hworld.o -L/home/pnord/root/lib -lNew -lCore -lCint -lHist -lGraf
> -lGraf3d -lGpad -lTree -lRint -lPostscript -lMatrix -lPhysics -lm -ldl
> -rdynamic -o hworld
> hworld.o: In function `main':
> hworld.o(.text+0xa2): undefined reference to `TPaveLabel::TPaveLabel(float,
> float, float, float, char const *, char const *)'
> collect2: ld returned 1 exit status
> make: *** [hworld] Error 1
> 
> 
> 
> This is the version of ROOT I have currently.  I'm downloading the newer one.
>   *******************************************
>   *                                         *
>   *        W E L C O M E  to  R O O T       *
>   *                                         *
>   *   Version   2.23/08   2 November 1999   *
>   *                                         *
>   *  You are welcome to visit our Web site  *
>   *          http://root.cern.ch            *
>   *                                         *
>   *******************************************
> CINT/ROOT C/C++ Interpreter version 5.14.21, Oct 22 1999
> Type ? for help. Commands must be C++ statements.
> Enclose multiple statements between { }.
> 



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