Re: libc/5011

[James Richard Tyrer]

Roland McGrath wrote:
> > Is there a Fine Manual somewhere that explains this?
>
>
> Not like you're looking for.  This is part of the ELF spec, and you need to
> understand a lot of things and how they fit together.
I'll have to look at that when I have time.
> > I now understand how libc.so.5 works since its ld-linux is version '1',
> > but I don't understand how the RedHat compat GLibc libraries work (if
> > they actually do).
>
>
> The packages you are talking about are for linking against, not for
> running.  

No, there are packages that are dependent on them [the compat-glibc 
2.0 & 2.1 packages].  That is why I originally installed them.

> You do not use old libc binaries to get compatibility, you use
> compatible libc binaries.  If new libraries are not compatible, the soname
> is changed.
I know that that is the way it is supposed to be.  Perhaps Corel-WINE 
is a specific case since it is a 'hack', but it won't run on GLibc-2.3.2.
> > But, I do note that there *is* a problem here with backward
> > compatibility.

As I understand it, there is some backward compatibility, but not 
total.  I see this as a problem.  It isn't a bug, it is more of a 
feature request.

In any case, I got this working.  The attached script starts 
WordPerfect with Corel-WINE. :-)

But, in doing this, I get back to my original suggestion that there is 
a problem here.  The GLibc-2.2.5 library did not have: "libSM.so.6", 
so I added: "/usr/i386-glibc21-linux/lib" (which is from: 
"compat-glibc-6.2-2.1.3.2.i386.rpm" mentioned above) to the 
LD_LIBRARY_PATH.  This appears to work (as I said, there is some 
backward compatibly).

>
> No, you just don't understand how it works.
>

True, but I think that there are things which you don't completely 
understand as well.  I remain puzzled about it.

Again, thanks for your help.

--
JRT

#!/bin/bash

LD_LIBRARY_PATH=/usr/i586-glibc225-linux/lib
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/i386-glibc21-linux/lib
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/X11R6/lib

WINEPREFIX=.wpo2000
export WINEPREFIX

export LC_ALL=en

export LD_LIBRARY_PATH=/usr/lib/corel/wine/lib:$LD_LIBRARY_PATH

/usr/i586-glibc225-linux/lib/ld-linux.so.2 /usr/lib/corel/wine/bin/wineserver
/usr/i586-glibc225-linux/lib/ld-linux.so.2 /usr/lib/corel/wine/bin/wine 
/usr/lib/corel/wpo/programs/wpwin9.exe  -winver nt40 -managed