#9872: PolyBoRi incorrectly reports a GNU linker is used with gcc and produces
libraries with text relocations.
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Reporter: drkirkby | Owner: tbd
Type: defect | Status: new
Priority: major | Milestone: sage-4.6
Component: packages | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by drkirkby):
Replying to [comment:6 AlexanderDreyer]:
> Does PolyBoRi really cause problems here? In Sage 4.5.3 the most recent
patch #9768, which reintroduce PolyBori's dynamic libraries, is not
included yet. it is a bug, that hte libraries lib*0.6.4.so are not removed
after building, but Sage should link to the static libraries libpolybori.a
etc.
To be fair I am not aware of a problem caused by !PolyBoRi.
But I know the other two packages which have the text relocations issues
(Cliquer and R) have both caused serious problems. Since the problems are
serious enough to stop Sage building fully, I can't say what will happen
with !PolyBoRi.
If the shared libraries can be deleted, then that would solve the problem.
But one would need to delete {{{libgroebner* libpboriCudd*}}} and
{{{libpolybori*}}} Is that an acceptable solution?
BTW, I found a better test for the linker - see below. I will try to get a
script added to the $SAGE_LOCAL/bin to test the linker that gcc uses.
{{{
#!/bin/sh
# Assume the -v option when passed directly to the linker
# will output "GNU" or "Binutils" if using the GNU linker.
# Even if some other linker accepts -v (which is quite a common option
# for software to support), we would not expect a non-GNU linker to
# output the text "GNU" or "Binutils"
# If that does not work, assume a native linker.
if [ "x`gcc -Wl,-v 2>&1 | egrep \"Binutils|GNU\"`" != x ] ; then
# It must be a GNU linker, as it has output the word "GNU" or
"Binutils"
echo "GNU"
elif [ "x`uname`" = xSunOS ] ; then
# It must be Sun's linker, as it's not GNU and there are no other
linkers
# used on Solaris.
echo "Sun"
elif [ "x`uname`" = xHP-UX ] ; then
# It must be HP's linker, as it's not GNU and there are no other linkers
# used on HP-UX
echo "HP"
elif [ "x`uname`" = xAIX ]; then
# It must be IBM's linker as it's not GNU and there are no other linkers
# used on AIX
echo "IBM"
else
# A rare linker like Sun's on Linux, or Intel's on Linux might
# get here.
echo "Unknown"
fi
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9872#comment:7>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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