formatting 0.6 and -0.6 using the printf format "%.0f"; most often,
they produce "0" and "-0".)
+=head2 SCO
+
+The socketpair tests are known to be unhappy in SCO 3.2v5.0.4:
+
+ ext/Socket/socketpair.t...............FAILED tests 15-45
+
=head2 Solaris 2.5
In case you are still using Solaris 2.5 (aka SunOS 5.5), you may