[Fedora-legal-list] licensing of private build tools

[Michal Hlavinka]

Hi,

I'm looking into ksh package. This package is licensed as CPL. For building 
ksh's own tools are required. Upstream have two source tarballs:

1) ast-ksh
2) INIT

First tarball contains only CPL licensed files and is the only source for ksh 
itself.

Second tarball is CPL licensed too except one file licensed with ZLIB. This is 
used only for build tool, nowhere else.

Is it required to have ZLIB in spec file or not?

Cheers,
Michal