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Article #5355

Re: Problems with Gnuchess on AIX ...anyone?

#5355
From: Tom McConnell
Date: Mon, 04 Oct 1993 14:06
43 lines
2940 bytes
In article <28ijal$nnj@nuscc.nus.sg>, nsrccks@leonis.nus.sg (Chua Kong Sian) writes:
> colm@watson.ibm.com wrote:
> :                                                                                                        
> : I have just recently FTP'd gnuchess4.0p62.tar.gz from prep.ai.mit.edu.                                 
> : I also got the xboard X-windows interface.                                                             
> : Now at first I thought xboard was at fault as it reported an illegal move                              
> : a perfectly valid move 

> Well, I do have gnuchess on AIX v 3.2 (?) working fine.  Using the resident
> cc compiler, I have the flags as
> 
> CFLAGS = -O3 -D_POSIX_SOURCE

  Here is a list of the flags/compilers I have tried on RS/6000's:

        CFLAGS= -O2 -funroll-loops  # Breaks with gcc-2.3.3, AIX-3.2.2
        CFLAGS= -O -qchars=signed # Seems to work for cc on RS/6000 AIX-3.2.2
        CFLAGS= -O2 # Fails with gcc-2.3.3 on AIX-3.2.2
        CFLAGS=  # Seems to work with gcc-2.3.3 on AIX-3.2.2, and cc.
        CFLAGS= -O # seems to work with gcc-2.3.3 on AIX-3.2.2, and cc.
        CFLAGS = -funroll-loops # Seems to work with gcc-2.3.3 on AIX-3.2.2
        CFLAGS = -O -funroll-loops # fails with gcc-2.3.3 on AIX-3.2.2

  I personally use the "CFLAGS = -O" option, which seems to work fine. To
test it, I compiled gnuchess, then let it play "two machines" until a
conclusion. If the "error" appeared, it was usually in the first five or ten
moves.

  As far as xboard, I have compiled every version using X11R5, and it has
always worked fine. The problems I have had are always with gnuchess, and
the only real problem is with which flags to use for the compiler. Well, I 
did have a problem with how time ("-DOLDTIME") was used, but that was user
error :-)

    Cheers,

    Tom McConnell
-- 
 Tom McConnell          |     Internet: tmcconne@sedona.intel.com
 Intel, Corp. C11-91    | Phone: (602) 554-8229 [Temp: (508) 392-3922]
 6505 W. Chandler Blvd. | The opinions expressed are my own. No one in 
 Chandler, AZ 85226     | their right mind would claim them.
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From: tmcconne@sedona.intel.com (Tom McConnell)
Newsgroups: gnu.chess
Subject: Re: Problems with Gnuchess on AIX ...anyone?
Date: 4 Oct 1993 14:06:49 GMT
Organization: Intel Corporation
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