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August 1994
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1994.08.25 16:30 "Re: CRAY installation problem", by Sam Leffler
To: tiff@sgi.sgi.com
Subject: CRAY installation problem
Date: Thu, 25 Aug 1994 13:39:19 +0200
From: Dietrich Bartel <ZDV043@ZAM001.ZAM.KFA-JUELICH.DE>
Hi,
I try to install v3.3beta015 on CRAY YMP (UNICOS 8.0). The compilation
works well with "make RANLIB=touch -f Makefile.sun". Unfortunately
the CRAY has no IEEE floating point format, so I have to add the support
by using conversion routines provided by CRAY (FORTRAN). According to
the README file this support has to be done in tif_machdep.c but I can't
find this file. Any hints or has anybody already done such support on
CRAY or another machine?
Sorry, the distribution is still called "beta" 'cuz the documentation
is out of date (that's one reason at least). There is no tif_machdep.c
file; that was purged long ago. To support a non-IEEE floating point
you need to define two functions:
TIFFCvtIEEEFloatToNative
and
TIFFCvtNativeToIEEEFloat
that are used in tif_dirread.c and tif_dirwrite.c (look at the code for
particulars). Other than that I think you should be ok. I recall at
least one person saying they'd ported an older version of the tiff library
to the Cray; perhaps they'll contact you. Otherwise if you get stuff
running, please send me your mods so that I can include them in future
distributions.
Sam