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Re: Patch for transparent decompression


From: Reuben Thomas
Subject: Re: Patch for transparent decompression
Date: Wed, 30 Apr 2008 00:29:17 +0100 (BST)
User-agent: Alpine 1.00 (DEB 882 2007-12-20)

On Sun, 27 Apr 2008, Tony Abou-Assaleh wrote:

* The patch statically links with libz at compile time. If grep is installed before libz, then it would need to be recompiled. Ideally, the user should have an option of forcing static linking, use dynamic linking, or totally disabling the option. How complicated is it to get that working?

I will fix that. I've prepared a first draft of the patch, but I need to know how to support dynamic linking: I can either use dlopen/dlsym directly (lowest code impact, but not so portable), or I can use libtool's libltdl (more portable, but needs libtool, which grep seems not to use currently).

* In addition to documentation, I'd like to see some test cases. And the more the better :O)

Thanks for your hints on this.

* My understanding is that zlib support .gz files. Any plans to integrate libbzip2 as well?

Can that be left until later? We have already discussed it, but I'd rather keep it separate from libz support.

And a question to the community: is --uncompress a good option name? Any objections? Zlib uses the term 'decompress'.

I have changed to "decompress".

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