RE: New Linux/libc5 CVSup client

From: John Polstra <jdp(at)polstra(dot)com>
To: "Thomas G(dot) Lockhart" <lockhart(at)alumni(dot)caltech(dot)edu>
Cc: Postgres Hackers List <hackers(at)postgresql(dot)org>
Subject: RE: New Linux/libc5 CVSup client
Date: 1998-12-02 17:03:10
Message-ID: XFMail.981202090310.jdp@polstra.com
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Hi,

I'm the author of CVSup. I'm really glad you cc'd me on your mail.

On 02-Dec-98 Thomas G. Lockhart wrote:
> I've posted a new statically-linked CVSup client for linux-libc5 boxes
> in:
>
> ftp://postgresql.org/pub/CVSup/cvsup-15.4.2-client-linux-libc5.tar.gz

Great! I've been meaning to try to get some newer binaries for
platforms I don't have.

> I've noticed many checksum errors when using my older cvsup-15.2
> installation, but have not yet had a real update to test this newer
> package to see if it helps.

It should fix that problem. The checksum errors were caused by
some whitespace changes in RCS files that were introduced in recent
versions of CVS. I made the checksumming algorithm for RCS files
ignore inconsequential whitespace differences, so this problem
shouldn't recur no matter what they do to CVS in the future.

There's still one potential source of checksum errors. The very
newest versions of CVS support some new features such as preserving
file modes and handling links. These are implemented using RCS file
extensions (see rcsfile(5) for details) which are not yet supported by
CVSup. Luckily, it seems that few people use those extensions. I am
going to implement a general scheme for handling them, hopefully for
the next release of CVSup. Even if some files use the new extensions,
the current version will update them OK. You'll see checksum errors,
but the "fixups" at the end will correct them (slower, of course).

> I used my existing from-sources Modula-3 installation to build it. That
> form of Modula-3 installation may not be for everyone, since it took
> over 200MB of disk space during the installation and ~50MB after. But...
>
> I found an rpm-packaged version of Modula-3 which was trivial to install
> on my glibc2 box, but have not yet been successful at building cvsup for
> that machine. It looks like a configuration problem of some sort, since
> it fails on the very first m3makefile statement.

This is the so-called "PM3" release of Modula-3, right? I've made
the necessary changes to build CVSup under that version of Modula-3.
I've been holding off on releasing it because I'd like to get some
other new features into the program first. But it's well tested on
a couple of FreeBSD mirror sites. I put the sources up for FTP at:

ftp://ftp.polstra.com/private/lockhart/cvsup-15.5.tar.gz

The MD5 checksum is 1f2466e83d06beb1ab2a2400515f9817.

You should be able to build it with "make M3TARGET=LINUXLIBC6". I'd
love to find out whether it works OK under Linux, and fix it if it
doesn't.

I'm going to be on vacation next week, so I may be a bit unresponsive
to mail during that time.

John
---
John Polstra jdp(at)polstra(dot)com
John D. Polstra & Co., Inc. Seattle, Washington USA
"Nobody ever went broke underestimating the taste of the American public."
-- H. L. Mencken

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