gRandom access in SVN HEAD

Second try sending this ... hope it makes it through without duplication]

With the new handling of MathCore something seems to have gotten lost in the way it handles gRandom. Now I see:

• *
• W E L C O M E to R O O T *
• *
• Version 5.19/01 17 January 2008 *
• *
• You are welcome to visit our Web site *
• http://root.cern.ch *
• *

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  ROOT 5.19/01 (trunk_at_22548, Mar 10 2008, 00:33:04 on linux) CINT/ROOT C/C++ Interpreter version 5.16.29, Jan 08, 2008

root [0] gRandom->Rndm()
Error: Symbol gRandom is not defined in current scope (tmpfile):1: Error: Failed to evaluate gRandom->Rndm() *** Interpreter error recovered ***
root [1] gSystem->Load("libMathCore");
root [2] gRandom->Rndm()
(Double_t)9.99741748906672001e-01

whereas in prior versions (e.g. v5.18/00a) the initial statement worked. Previously libCore.so had a reference to gRandom but it no longer does and so it fails to automatically load the libMathCore library (because it's not trying to resolve a TRandom class name and it knows nothing about "gRandom"). This is true for both Linux (SLF 3 & 4) and Mac OS X (Tiger).

Are users going to have to add gSystem->Load("libMathCore") to their scripts or is there some means to get the previous behaviour restored? I don't fully understand the .rootmap mechanism, but would it be possible to use that to get the library automatically loaded for these sort of globals?

-robert

Robert W. Hatcher | rhatcher_at_fnal.gov 630-840-3102 FNAL CD/EXP (MINOS) | MS 220, PO Box 500, Batavia IL 60510 Received on Mon Mar 10 2008 - 20:35:04 CET