#6750: [with spkg, needs review] New version of optional Group Cohomology spkg
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Reporter: SimonKing | Owner: SimonKing
Type: enhancement | Status: assigned
Priority: major | Milestone:
Component: optional packages | Keywords: cohomology ring p-group
Reviewer: | Author: Simon King
Merged: |
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Comment(by jhpalmieri):
Replying to [comment:27 SimonKing]:
> How can I test whether "make -j2" is used? And what should be done
''if'' "make -j2 is used? Exit with an error? Sorry, I am really not an
expert for writing shell scripts.
Me neither, sorry.
For the 64-bit issue, at one point I browsed through some spkgs to see
what they did in 64-bit mode (in an attempt to solve the problem at
#6681). Givaro does this:
{{{
if [ `uname` = "Darwin" -a "$SAGE64" = "yes" ]; then
echo "64 bit MacIntel"
CFLAGS="-O2 -g -m64 "; export CFLAGS
CPPFLAGS="-O2 -g -m64 "; export CPPFLAGS
LDFLAGS="-m64"; export LDFLAGS
fi
}}}
I am not an expert at this by any stretch of the imagination, but this
kind of thing seems more or less standard for 64-bit builds in Sage spkgs;
the -m64 flag tells the compiler to build for 64-bit architecture.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6750#comment:28>
Sage <http://sagemath.org/>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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