WNU - Windows is Not Unix ! Re: [ROOT] Official Release of ROOT Version 3.01

From: Valeri Fine (fine@bnl.gov)
Date: Sun Jun 10 2001 - 22:07:15 MEST 

Hello, 
I've downloaded the last ROOT version and found it crashes
by "strange" reasons at start up  time by time. Usually it complains 
it can not access some ROOT include files or DLL's.

I found there are several reasons for that. All of them because
the idea:
 
 " WNU - Windows is Not Unix"   was forgotten  by team.

Here is a list of the problems (see the attachment for the fix)

TApplication::TApplication:
   LoadGraphicsLibs() needs gProgFile pointer. That was not assigned.
   The statement "gSystem->SetProgname(fArgv[0])"
   is called too late, namely after LoadGraphicsLibs is called.
  
   One has to change the order, namely first issue
     if (fArgv) gSystem->SetProgname(fArgv[0]);
   then
     LoadGraphicsLibs()

TROOT::LoadClass
   Did assume "lib" prefix is to be added to the name 
   of the Dynamic library name by the OS .This is not case under 
   Windows. As result the name of the Windows DLL is not completed
   and DLL file can not be found

TSystem::CompileMacro
   Applied wrong ExpandFileName method rather ExpandPathName
   As result the file name is not generated properly if it contains
   the Windows special symbols.

TSystem::ExapandFileName
   did treat "blank" as a "file separator". As result the file 
   name  that with the "blank inside" is not generated properly.


Hope this helps Windows users.
                                             With m y best regards, Valeri

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