[Dclug] Still Lost in the Linux Labyrinth of Distros
alan at his.com
Sun Jul 15 08:12:36 EDT 2012
On Sun, Jul 15, 2012 at 02:17:39AM -0400, Don E. Groves, Jr. wrote:
> > > > Generic whine: I have never understood libraries. I pick, quite at
. . . .
> > I'm still whining.
> >: dpkg-query -l libc6
> Which will return a description something like the following:
> Contains the standard libraries that are used by nearly all programs on the
> system. This package includes shared versions of the standard C library and
> the standard math library, as well as many others.
Here's what my dpkg-query -l libc6 yields:
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Description
ii libc6 2.11.2-10 Embedded GNU C Library: Shared libraries
So we run here into two different behaviors of the
> easiest way to find out how many is to BOOT with a rescue disk and
> rename 'libmemusage.so'
> to 'libmemusage.so-hold' and then boot the system and see which programs
> NOT that I'm even remotely recommending trying such a thing.
<ROTFL> What a feat of derring-do!
But that's not the point. Suppose I wished to write a substantial
program, in C, and didn't want to reinvent the wheel; so I'd wish to
use as much fundamental code as I could. I consider "libraries" a
synonym for "fundamental code". How would I know what is available?
I remember when I was employed at GSFC and was a member of a team
which tried to write "libraries" -- I forget now for what. We weren't
expert and we had a terrible time. Would I/we do better today? not
without some Real Good documentation, with examples.
So I thank you for your message and shall remember that you know
about dpkg, which is way deeper into apt-arcana than I have ever
ventured. Maybe you should write a treatise on libraries? or
maybe there is some other expert here?
Please note Alan McConnell's new E-address: alan at his.com .
"The great safeguard of society and domestic life was, that opinions
were not acted upon. Sane people did what their neighbors did."
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