Thank you, Matthias and Dima, for those pointers.
Reading over that, it seems like it should just find the files on its own.
"src/module_list.py" was not replaced with anything other than improved
logic to find Cython files.
How does it know which shared libraries to load? It seems like that's
where it's failing - not when it compiles the Cython, but when it tries to
run it and call a function in the shared library.
agape
brent
On Thursday, March 16, 2023 at 6:23:44 AM UTC-4 Dima Pasechnik wrote:
> On Thu, Mar 16, 2023 at 8:07 AM Matthias Koeppe
> <[email protected]> wrote:
> >
> > Looking at the branch I see a change to "src/module_list.py". This file
> is not a thing any more in Sage. See
> https://wiki.sagemath.org/ReleaseTours/sage-9.2#For_developers:_Changes_to_the_build_system_of_sagelib
>
> This is somewhat outdated, it seems. I've edited the links there to
> point to sources on github, but there is nothing about sage-tdlib in
> setup.py any more.
> There is sagemath-tdlib in src/sage/misc/package_dir.py, etc...
>
> probably it's best to be edited further not by me, but by someone who
> knows details.
>
>
> >
> >
> > On Wednesday, March 15, 2023 at 6:56:32 PM UTC-7 Brent W. Baccala wrote:
> >>
> >> Hi -
> >>
> >> I'm trying to get the DifferentialAlgebra package in issue 13268
> running (it has a github branch that was imported from trac).
> >>
> >> Last time I had it running was 9.0 (I think), and now I'm trying to
> build it on 9.8.
> >>
> >> It seems to build fine, but can't access functions in the shared
> library that was built from upstream's C code.
> >>
> >> It does this:
> >>
> >> baccala@samsung:~/src/sage-rg$ ./sage
> >> ┌────────────────────────────────────────────────────────────────────┐
> >> │ SageMath version 9.8, Release Date: 2023-02-11 │
> >> │ Using Python 3.11.1. Type "help()" for help. │
> >> └────────────────────────────────────────────────────────────────────┘
> >> sage: import sage.calculus.DifferentialAlgebra
> >>
> ---------------------------------------------------------------------------
> >> ImportError Traceback (most recent call last)
> >> Cell In [1], line 1
> >> ----> 1 import sage.calculus.DifferentialAlgebra
> >>
> >> ImportError: /home/baccala/src/sage-rg/src/sage/calculus/
> DifferentialAlgebra.cpython-311-x86_64-linux-gnu.so: undefined symbol:
> bmi_sage_is_constant
> >> sage:
> >>
> >> The function is cimported in DifferentialAlgebra.pyx:
> >>
> >> cimport sage.libs.bmi_c as bmi_c
> >>
> >> bmi_c.pxd is in src/sage/libs and contains lines like this:
> >>
> >> cdef extern from "bmi.h":
> >> ...
> >> ctypedef bmi_balsa_object_string* ALGEB_string
> >> ALGEB_string bmi_sage_is_constant (
> >> char*, char*, ALGEB, char*, char*, ba0_int_p, ba0_int_p)
> >>
> >> The symbol exists in a shared library in local/lib:
> >>
> >> baccala@samsung:~/src/sage-rg$ ls -l local/lib/libbmi.so.0.0.0
> >> -rwxr-xr-x 1 baccala baccala 973584 Mar 15 16:17
> local/lib/libbmi.so.0.0.0
> >> baccala@samsung:~/src/sage-rg$ nm local/lib/libbmi.so.0.0.0 | grep
> bmi_sage_is_constant
> >> 000000000000c140 T bmi_sage_is_constant
> >>
> >>
> >> Any idea what needs to be done to access this shared library from Sage?
> >>
> >> It may be related to something that changed since Sage 9.0.
> >>
> >> Thanks for any help you can provide!
> >>
> >> agape
> >> brent
> >>
> > --
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