Debian, Fedora and Conda package it, so we can use it at least on some
boxes.

The present branch runs a test known to crash an unpatched Symmetrica version, so this allows to ignore an old Symmetrica version installed on old Fedora versions (e.g. on Fedora 26).

configure tarball:
http://users.ox.ac.uk/~coml0531/sage/configure-4416fd47f080f6f849eef2ba969b69a66d651df7.tar.gz

Depends on #27827

CC: @embray @kiwifb @isuruf

Component: build: configure

Author: Dima Pasechnik

Branch: 47f09f1

Reviewer: François Bissey, Isuru Fernando

Issue created by migration from https://trac.sagemath.org/ticket/28208