build error

["Mark M. Ito" <marki@jlab.org>]

on Fedora 9, current version of halld code:

g++ -I. -I.. -I../include -I/scratch/gluex8/halld/halld_current/include 
-I/scratch/gluex8/halld/halld_current/include -D_ROOT_ -pthread -m32 
-I/scratch/gluex8/root/prod/include -I/scratch/gluex8/root/prod/include 
-I/scratch/gluex8/jana/prod/include 
-I/scratch/gluex8/xerces-c/prod/include -O2 -Wall -c -o 
.obj/Linux-i686/DTrackingResolutionGEANT.o DTrackingResolutionGEANT.cc
DTrackingResolutionGEANT.cc: In constructor 
‘DTrackingResolutionGEANT::DTrackingResolutionGEANT()’:
DTrackingResolutionGEANT.cc:38: error: ‘exit’ was not declared in this scope
DTrackingResolutionGEANT.cc:49: error: ‘exit’ was not declared in this scope
DTrackingResolutionGEANT.cc:59: error: ‘exit’ was not declared in this scope
DTrackingResolutionGEANT.cc:69: error: ‘exit’ was not declared in this scope
DTrackingResolutionGEANT.cc:79: error: ‘exit’ was not declared in this scope
make[6]: *** [DTrackingResolutionGEANT.o] Error 1