Baslinux mailing list

["David Moberg" <davidjmoberg AT lycos.com>]

----- Original Message -----
From: "sindi keesan" <keesan AT sdf.lonestar.org>
 
> I have libz.a and can get libpng.a from some SW package (where I 
> got libpng.so for links2).  What is lib*_p.a?

I believe it's a profiled version. Only useful if you're trying to
figure out what part of a program gets used the most (which usually
means it's slowing everything down).

> I have far too much added to BL2 to want to reinstall it.  I 
> utterly botched it once already trying to use glibc-so.2.2.5 with 
> the main glibc 2.1.3 for compiling with. All sorts of things 
> stopped working, including ar and the compiler.  I had to start 
> over.  I wanted to use opera with 2.2.5 but keep compiling with 
> 2.1.3 so others could use the results.  I tried to downgrade back 
> to 2.1.3 and could not manage that properly either.

You can always run a ramdisk version.

> I will put the png and tiff programs in a separate package for BL3 
> and warn people that they may have problems in BL2 if they already 
> have (or later add) a libpng or libtiff of the same version number 
> or earlier. I might suggest sticking the libc5 libraries in 
> /usr/local/lib and pointing programs at them in /etc/profile.

Pointing programs at them in /etc/profile??

> >>> LD_LIBRARY_PATH="/usr/local/lib/" tifftopnm
> >>>
> >>> ^ looks in /usr/local/lib/ for libraries. You can export it, but then
> >>> you're back to square one.
> >>
> >> Do I repeat this line for pnmtotiff or list both on one line?
> >
> > This runs tifftopnm with libraries from /usr/local/lib. You obviously
> > need to change it to choose options or run a different programs.
> >
> >> In /etc/profile?
> >
> > That will try to run every single program with libraries from 
> > /usr/local/lib,
> > which is just like copying everything from there to /usr/lib. Back to 
> > square
> > one, as I said.
> 
> I thought it would run just tifftopnm with /usr/local/lib 
> libraries.

ld.so looks for libraries in whichever directory is selected by
LD_LIBRARY_PATH. Exporting this is probably not what you want to
do, as then every program will look there.

> So for tifftopnm, pnmtotiff, pngtopnm and pnmtopng I 
> would put four such lines (each with a different program at the 
> end) WHERE if not /etc/profile?

You enter it in at the command line when you want to run the program
in question. Don't put it in a configuration file.

> I don't know what EXPORT does 
> other than choose non-default devices, and that is the only thing I 
> know how to change in /etc/profile.
> 
> export GS_DEVICE=vgalib
> export CDDA_DEVICE=/dev/hdc.

export sets environment variables. It's just like the set command from
DOS.

David
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