GMP 5.1.1 make check fail on Solaris 11

[Torbjorn Granlund]

Marc Glisse <marc.glisse at inria.fr> writes:

  This is failing the 3 tests that try to catch exceptions. It is common
  with compilers whose exception handling is completely broken. You are
  the second person this week I hear report that their solaris g++ is
  broken in this way, although the other one was using a package from
  opencsw.
  
  Please check on trivial examples that exceptions indeed are broken.

Since this is common,
perhaps we should add an initial test t-does-exception-work-at-all.cc?

-- 
Torbjörn