Has sympow been tested on Itanium Linux much?
Anyone that reads sage-solaris will know John Palmieri has got Sage building on
fulvia (Solaris x86), but has some problems with sympow.
I decided to have a look at the sympow source code. It's not the easiest code to
follow, for various reasons.
One thing that struck me as not only odd, but a bug, is something that would
impact only Linux systems with Itanium CPUs.
This is from a patched "Configure" script of William's, but I don't think it
changes the particular issue I see. (I noticed it before even looking at
William's changes).
==================================================
MACH=`"$UNAME" -m`
for x in ix86 i386 i486 i586 i686 x86_64 ia64
do
if [ "$MACH" = "$x" -a `uname` = "Linux" ]; then
echo "You appear to have a $x based Linux system --- using fpu.c"
DEFS="-Dx86"
fi
done
if [ -z "$DEFS" ]; then
echo "You do not appear to have an x86 based system --- not using fpu.c"
fi
============================================
If I'm not mistaken, that script will include x86 based code for the floating
point processor (in the file fpu.c) if the system is linux running Itanium.
Would you agree? (I think ia64 = Itanium).
But Itanium CPUs are not x86 compatible. I don't know if there are any
similarities of the instruction sets
Unless I am mistaken, ia64 should be removed from that list.
I was thinking of adding Solaris x86 in, but that lacks the header file
fpu_control.h, so I don't think its appropriate. I'll change the notice to
indicate one does not have an x86 Linux system.
Dave
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