#ifndef UNIX
#define UNIX
#endif
	construct instead of unconditional 
#define UNIX
	- this would allow to avoid having cpp diagnostics like 
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In file included from /cdf/upgrade/root/v0_00/include/Rtypes.h:18,
                 from /cdf/upgrade/root/v0_00/include/TObject.h:23,
                 from /cdf/upgrade/root/v0_00/include/TNamed.h:18,
                 from /cdf/upgrade/tracking/murat/g3/test/include/evd/CotDisplay.hh:4,
                 from display_cot.cc:2:
/cdf/upgrade/root/v0_00/include/RConfig.h:55: warning: `UNIX' redefined
*Initialization*:1: warning: this is the location of the previous definition
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						Regards, Pasha.
--------------------------------------------------------------------------------
Pasha Murat, CDF collaboration, MS 223, PO Box 500, Batavia, IL, 60510
office         : B0 trailers 169G, 
phone          : (630)840-8237
FAX     (CDF)  : (630)840-2968
E-mail         : murat@fnal.gov