Baslinux mailing list

[sindi keesan <keesan AT sdf.lonestar.org>]

On Thu, 5 Jan 2006, David Moberg wrote:

> sindi keesan wrote:
> > I was able to compile netpbm but all the programs segfault.
> >
> > > The programs that I compiled all produced only Segmentation fault, and ldd
> > > reveals that they need ld-linux 2, libm 6, libc 6 and also libc 5.
> >
> > David's libc5 version does not require ld-linux,
>
> Really?? IIRC the libc5 ldd does not display ld-linux even if the target
> program depends on ld-linux.

I used BL2 ldd to check both your netpbm programs and mine.
For mine, ldd lists ld-linux, for yours, it does not.

> > and his programs are about three times the size of mine.  Did David
> > compile statically for ld-linux?
>
> No, I don't think that is even possible without doing a fully static
> compile. What probably happened was that I built statically against
> libnetpbm and possibly libpng, libz, etc.

I built shared against libpng, libz, and libnetpbm. 
ldd - libm 6 libc 6 libc 6 libnetpbm ldlinux 2

You seem to have built shared against libnetpbm because ldd lists it.
ldd - libm5 libc5 libnetpbm

> > I tried renaming libc.so.5 to libc.so.5.bak and ldd said the programs
> > still required it, but could not find it.  I removed the 'bak' again.
>
> Your compiling system is somewhat broken. Did you install libc5
> development libraries? Try renaming anything that is named .so.5
> also.

I probably installed the whole libc5 package from SW71, libc5.tgz
which installed /usr/i386-slackware-linux-gnulibc1/lib/
with two symlinks to /lib/ld-linux.so.1 and libdl.so.1
and one directory.  Should I delete these?


I will look at what is in the .tgz.  To run your netpbm do I need
anything other than libc.so.5 and libnetpbm and libtiff (for libc5)?

I have libm.so.5 but ldd does not indicate that it is a dependency, just 
libc.so.5.

> If this fails, you may need to start with a fresh BL2, and carefully
> add the glibc2 development packages without libc5.

I can delete all the libc5 stuff if I can find it, since I hope to replace
netpbm with libc6 version and won't need it. (And I can add it again if I 
do need it).  Is there some script I could run to find all the files that 
have a libc.so.5 dependency?


> netpbm does not depend on libc5, the problem is that gcc does
> not work well when there are multiple libcs to get in the way.
> It seems to have a hard time deciding which libc to use.

The maintainer of netpbm tried to explain this.  make CC=gcc5 uses libc5. 
Is there a way to use just libc6?

> David
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keesan AT sdf.lonestar.org
SDF Public Access UNIX System - http://sdf.lonestar.org