I am building an AppImage for Sage 10.8. I have successfully built Sage
10.8 on my manylinux docker image and I can run it on my Ubuntu 24.04
system. But I have run into issues with libgap, and possibly other parts
of sage.
First, I cannot build the documentation because segfaults occur during the
doc build. Actually there are several, many of which occur during
sphinxplot. But I was able to track down at least one segfault
in gap/element.cpython-313-x86_64-linux-gnu.so. Based on disassembly, it
seems to happen in make_gap_list.
I then tried running some example code from libgap, and I get weird
errors. For example:
libgap(vector((1/3, 0.8, 3)))
produces:
GAPError: Error, Variable: <<unknown>> must have an assigned value
On my 10.7 AppImage, which was built on the same docker image, the result
of that command is, as expected:
[ 0.333333, 0.8, 3. ]
For another example, the command:
libgap.AlternatingGroup(4)
produces
GAPError: Error, no method found! Error, no 1st choice method found for
`AlternatingGroupCons' on 2 arguments
Again, that works fine on the 10.7 Appimage, producing the expected result:
Alt( [ 1 .. 4 ] )
And, to add one more, the command:
sage: libgap.eval('5/3 + 7*E(3)').sage()
produces:
GAPError: Error, CoeffsCyc: function is not yet defined
while the following command seems to work:
libgap.eval('5/3 + 7*E(3)')
16/3*E(3)-5/3*E(3)^2
Does anyone know anything which might give a hint about what is going on
here?
- Marc
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