Index: trunk/Mars/macros/rootlogon.C
===================================================================
--- trunk/Mars/macros/rootlogon.C	(revision 14933)
+++ trunk/Mars/macros/rootlogon.C	(revision 14934)
@@ -181,14 +181,18 @@
 
     TString opt(gSystem->GetFlagsOpt());
+    TString dbg(gSystem->GetFlagsDebug());
     TString lib(gSystem->GetLinkedLibs());
 
-    opt += " -D__MARS__";
-//    opt += " -DHAVE_ZLIB";
-    opt += " -std=c++0x";
-
-//    lib += " -lz";
+    opt += " -D__MARS__ ";
+    opt += " -std=c++0x ";
+
+    dbg += " -D__MARS__ ";
+    dbg += " -std=c++0x ";
+
+    // lib += " -lz ";
 
     gSystem->SetLinkedLibs(lib);
     gSystem->SetFlagsOpt(opt);
+    gSystem->SetFlagsDebug(dbg);