The singular package is broken; it looks for shared libraries and singular
"libs" in the wrong place:

Information for package singular:
---------------------------------
Repository: Science-42.1
Name: singular
Version: 3.1.91-9.5
Arch: x86_64
Vendor: obs://build.opensuse.org/science
Installed: Yes
Status: up-to-date
Installed Size: 7.8 MiB
Summary: Singular CAS

user@host $ Singular
   ? cannot open `standard.lib`
                     SINGULAR                                 /  Development
 A Computer Algebra System for Polynomial Computations       /   version
spielwiese
                                                           0<
 by: W. Decker, G.-M. Greuel, G. Pfister, H. Schoenemann     \   
FB Mathematik der Universitaet, D-67653 Kaiserslautern        \
> ring r = 0,x,dp;
// ** Could not find dynamic library: p_Procs_FieldIndep.so
// ** Error message from system:
/usr/bin/../lib/singular/p_Procs_FieldIndep.so: cannot open shared object file:
No such file or directory
// ** Singular will work properly, but much slower.
// ** See the INSTALL section in the Singular manual for details.

> LIB "primdec.lib";
   ? cannot open `primdec.lib`
   ? error occurred in or before STDIN line 1: `LIB "primdec.lib";`


The shared library it's looking for actually exists, but it's in the
/usr/lib64/singular/MOD/ directory. The singular "libs" are also installed (in
/usr/share/singular/LIB/), but as can be seen above, singular doesn't seem to
find them there.

(By the way, the hoops one has to go through to report bugs here are really
over the top; why on earth aren't bugs readable without being logged in and why
does account creation for a friggin' bug tracker ask for things like one's job
title and postal address? Thanks goodness that the provided data isn't actually
verified...)