GAP's spkg-install fails on recent Cygwin

Imported from <a href="http://trac.sagemath.org/sage_trac/ticket/13341">trac #13341</a>.

spkg diff, for review only

Reported by: jpflori

Component: cygwin

CC: dimpase

Report Upstream: N/A

Authors: Jean-Pierre Flori, Leif Leonhardy

Dependencies: 

Work issues: 

Reviewers: Dmitrii Pasechnik

Merged in: sage-5.3.rc1

Attachments: <ol><li><a href="http://trac.sagemath.org/sage_trac/attachment/ticket/13341/spkg.diff">spkg.diff: Spkg diff, for review only.</a> by jpflori at 20120805T10:02:35</li><li><a href="http://trac.sagemath.org/sage_trac/attachment/ticket/13341/spkg.2.diff">spkg.2.diff: spkg diff, for review only</a> by jpflori at 20120805T19:39:08</li></ol>