Re: [PATCH] Checking integrity of installed packages in cygcheck

[Igor Pechtchanski <pechtcha at cs dot nyu dot edu>]

On Sat, 9 Aug 2003, Charles Wilson wrote:

> Christopher Faylor wrote:
>
> > I'll check this in but it would be nice if (WBNI) this used a mingw gzip
> > library rather than calling gzip directly.  That's a fair amount of
> > work but I could resurrect the zlib library in winsup if necessary.

Yes, I found the bzip2 library, but there was no zlib in the mingw
subtree, and I wasn't in the mood to experiment with the makefile magic to
make it work.

> > I wonder why setup is using gzip rather than bzip2 for the package files...
>
> the setup tree contains its own copies of the zlib and bzlib trees;
> thue, they are compiled under the same runtime that setup is.  If setup
> is a 'mingw' app, then so are the internal, statically linked libz and
> bz2lib.
>
> I imagine that the reason Igor used popen and zcat is simply that it was
> easier than directly interfacing to the library.  Perhaps that issue
> could be addressed in a later patch (along the lines of the compress_gz
> class, which also provides uncompression capabilities?)
>
> Chuck

That's exactly my plan.  If there were a mingw zlib example somewhere in
the code, I'd've used that, but I didn't want to venture into unknown
territory without a guide.
	Igor
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