p_Procs_FieldZp.so: undefined symbol: omFreeToPageFault

[jdemeyer]

I cannot get the library interface to work (within Sage at least).

Singular version is

                     SINGULAR                                 /
 A Computer Algebra System for Polynomial Computations       /   version 4.1.0
                                                           0<
 by: W. Decker, G.-M. Greuel, G. Pfister, H. Schoenemann     \   Nov 2016
FB Mathematik der Universitaet, D-67653 Kaiserslautern        \

Trying to run a basic Singular command, I get this:

In [1]: from PySingular import RunSingularCommand, InitializeSingular

In [2]: InitializeSingular("usr/local/src/sage-config/local/lib")
Out[2]: True

In [3]: RunSingularCommand( "ring r;" )
// ** Could not find dynamic library: p_Procs_FieldZp.so (path /usr/local/src/sage-config/local/bin/../libexec/singular/MOD:/usr/local/src/sage-config/local/libexec/singular/MOD)
// ** Error message from system: /usr/local/src/sage-config/local/bin/../libexec/singular/MOD/p_Procs_FieldZp.so: undefined symbol: omFreeToPageFault
// ** Singular will work properly, but much slower.
// ** See the INSTALL section in the Singular manual for details.

To be clear: the library /usr/local/src/sage-config/local/libexec/singular/MOD/p_Procs_FieldZp.so does exist, but it contains the unresolved symbol omFreeToPageFault, which is what the error message complains about.

I don't know what the argument to InitializeSingular should be, so I'm just guessing that.

[sebasguts]

The argument is correct, and I already knew about this problem. Unfortunately, I have not worked out a solution yet. Singular works okay without that library, but it should be fixed on the long run. But the interface works without it, just, as indicated, slower when working in finite fields.