Index: trunk/Mars/Makefile.conf.general
===================================================================
--- trunk/Mars/Makefile.conf.general	(revision 9627)
+++ trunk/Mars/Makefile.conf.general	(revision 11561)
@@ -19,5 +19,5 @@
 OSTYPE   = $(shell uname -s | tr '[:upper:]' '[:lower:]')
 
-DEFINES	 := -DMARSVER=\"\<cvs\>\" -D__MARS__ $(MARSDEFINES)
+DEFINES	 := -DMARSVER=\"\<cvs\>\" -D__MARS__ $(MARSDEFINES) -DHAVE_ZLIB
 
 CXXFLAGS = $(ROOTCFLAGS) $(INCLUDES) $(OPTIM) $(DEBUG) $(ARCHDEF) $(DEFINES)