schwepes on 25 Jan 2006 21:37:05 -0000

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Re: [PLUG] /usr/local vs. /opt re pdp 11

Gawd you make me feel old here.  I remember when the PDP 11 was actually
sexy.  In college, everybody shared a DEC 10 which had a bad habit of
failing in Norfolk when a thunderstorm threatened Richmond and the
machines on the job were CP-30l's built by Unisys with the engineers
doing the real work on Trash 80's and Osbourn portables.
The writing was done in Fortran with those truly ugly format statements
and basic with those problems with the natural log, e.
To gain ideal use of the machine, one actually learned all of the number
codes in its chip's assembly language.
Does anybody remember all of the commands for WordStar?
We actually thought that the limit of speed on a microchip was soon to be
reached.  Hope was provided by such strange things as the Josephson
Junction which only worked real near to absolute zero in temperture.
I remember a friend's pride in getting his Heath Kit computer to work.
I remember the Sinclair that Bill Cosby advertised and I bought my
daughter for Christmas.  I bought the extension so she could have 64K of
RAM.  I was too cheap to buy the box that would permit a floppy disk
input and output.  Living on G.I. Bill meant that I had to economize.

On Tue, 24 Jan 2006, Paul L. Snyder wrote:

> Quoting "Michael C. Toren" <>:
> > On Tue, Jan 24, 2006 at 08:42:55AM -0500, Art Alexion wrote:
> > > What is the difference between these two and when should one use
> > which?
> >
> > On big-endian machines, one should use /usr/local.
> >
> > On little-endian machines, one should use /opt.
> >
> > On equal-endian machines, one should use /mlk.
> That's...novel.  I'll keep that in mind the next time I install Linux
> on my PDP-11.
> On Gentoo, at least, portage installs packages that are big blobs of
> vendor binaries (VMware, Acrobat, pre-compiled Firefox) into /opt, and
> will never install anything into /usr/local.  Anything that goes into
> /opt on Gentoo will typically be completely confined within its own
> directory.
> Sean's comment on manually-compiled packages that use GNU autotools
> (./configure; make; make install) is apt...these default to installing
> into /usr/local by default; if your package manager leaves this subtree
> alone, installing something by hand won't muck up your managed files.
> (But remember to watch your PATH and LD_LIBRARY_PATH).
> pls
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