Re: Linking Event.cxx problem

Mathieu de Naurois (denauroi@polhp1.in2p3.fr)
Fri, 27 Mar 1998 14:45:39 +0100 (MET)

> Hello Rooters,
> I'm trying to link program from $ROOT/test on linux 2.0.30. I tried
> to used ROOT 2.0 (root_v2.00.Linux.2.0.33.tar.gz). It failed.
> What could be a reason of it?
> Best wishes,
> Tadeusz
>
> pytlos@fizwe7:/home/pytlos/test > make
> g++ -Wl,-soname,libEvent.so -shared -g Event.o EventCint.o -o libEvent.so
> g++ -g MainEvent.o Event.o EventCint.o -L/opt/root/lib -lNew -lBase -lCint
> -lClib -lCont -lFunc -lGraf -lGraf3d -lHist -lHtml -lMatrix -lMeta
> -lMinuit -lNet -lPostscript -lProof -lTree -lUnix -lZip -lg++ -lm -ldl
> -rdynamic -o Event
> Event done
> g++ -g hworld.o -L/opt/root/lib -lNew -lBase -lCint -lClib -lCont -lFunc
> -lGraf -lGraf3d -lHist -lHtml -lMatrix -lMeta -lMinuit -lNet -lPostscript
> -lProof -lTree -lUnix -lZip -lGpad -lGui -lGX11 -lX3d -L/usr/X11R6/lib
> -lXpm -lX11 -lg++ -lm -ldl -rdynamic -o hworld
> /opt/root/lib/libGX11.so: undefined reference to `XpmFree'
> make: *** [hworld] Error 1
>

Hello, I've encountered the same problem and solve it by adding a
function XpmFree to my code:

extern "C" {
void XpmFree(void *p)
{
free(p);
}
}

and everything worked fine.

best wishes,

Mathieu de Naurois

-----------------------------------------

Mathieu de Naurois
LPNHE/X Ecole Polytechnique
denauroi@polhp1.in2p3.fr