Description of problem:
create a zipfile greater than 2gb on a windows OS, ftp in binary to linux,
and unzip: 

Version-Release number of selected component (if applicable):
UnZip 5.51 

How reproducible:
always

Steps to Reproduce:
1.try to unzip a file larger than 2 GB
2.
3.
  
Actual results:
can't find file

Expected results:
should open it

Additional info:
it suffices to add -D_LARGEFILE_SOURCE to CF (compile flags) in the
Makefile.
oracle bug number 5631207