Let Singular link to termcap on Cygwin

Imported from <a href="http://trac.sagemath.org/sage_trac/ticket/14033">trac #14033</a>.

Spkg diff, for review only.

Reported by: jpflori

Component: cygwin

CC: kcrisman,, dimpase

Report Upstream: Fixed upstream, but not in a stable release.

Authors: Jean-Pierre Flori

Dependencies: 

Work issues: 

Reviewers: Dmitrii Pasechnik

Merged in: sage-5.8.beta0

Attachments: <ol><li><a href="http://trac.sagemath.org/sage_trac/attachment/ticket/14033/singular-3-1-5.p4.diff">singular-3-1-5.p4.diff: Spkg diff, for review only.</a> by jpflori at 20130213T12:52:08</li></ol>