Re: Dpkg-shlibdeps and libc5/6
On 24 Sep 1997 01:22:36 CDT Guy Maor (maor@ece.utexas.edu) wrote:
> Philippe Troin <phil@fifi.org> writes:
>
> > Uhoh, looks like dpkg-shlibdeps is a real mess with -dev and -altdev
> > packages.
> > Many libc6 library packages provide two shlibs files (one with the
> > libc6 package, the other with the libc5 compatbility package).
> > The result is a mess when using dpkg-shlibdeps.
>
> Either you or the library maintainer must have done something wrong.
> It works correctly:
>
> femto[~]$ ldd a5.out a6.out
> a5.out:
> libreadline.so.2 => /lib/libc5-compat/libreadline.so.2 (0x4000a000)
> libc.so.5 => /lib/libc.so.5 (0x4002c000)
> libncurses.so.3.0 => /lib/libncurses.so.3.0 (0x400e8000)
> a6.out:
> libreadline.so.2 => /lib/libreadline.so.2 (0x4000e000)
> libc.so.6 => /lib/libc.so.6 (0x40030000)
> /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)
> libncurses.so.3.4 => /lib/libncurses.so.3.4 (0x400ce000)
> femto[~]$ dpkg-shlibdeps -O a5.out
> shlibs:Depends=libc5 (>= 5.4.0-0), libreadline2 (>= 2.1), ncurses3.0
> femto[~]$ dpkg-shlibdeps -O a6.out
> shlibs:Depends=libc6, libreadlineg2 (>= 2.1-4), ncurses3.4
Argh, ok, dug more... (being happy someone solved the problem)
It's fakeroot which breaks the thing.
Transcript:
phil@ceramic:...libpng0/0.96-3/libpng0-0.96[2]% fakeroot
sh-2.01# dpkg-shlibdeps -O debian/libpng.so.0.96
dpkg-shlibdeps: warning: unknown output from ldd on `debian/libpng.so.0.96': ` ./debian/libpng.so.0.96 => ./debian/libpng.so.0.96 (0x40011000)'
shlibs:Depends=libc5 (>= 5.4.0-0), libc6, zlib1 (>= 1.00)
sh-2.01# ldd debian/libpng.so.0.96
/usr/lib/libfakeroot.so.0 => /usr/lib/libfakeroot.so.0 (0x4000b000)
./debian/libpng.so.0.96 => ./debian/libpng.so.0.96 (0x40011000)
libc.so.5 => /lib/libc.so.5 (0x40029000)
libc.so.6 => /lib/libc.so.6 (0x400e5000)
ld-linux.so.2 => /lib/ld-linux.so.2 (0x40183000)
libz.so.1 => /usr/lib/libc5-compat/libz.so.1 (0x4018f000)
libm.so.5 => /lib/libm.so.5 (0x4019d000)
sh-2.01# echo $LD_PRELOAD
/usr/lib/libfakeroot.so.0
sh-2.01# unset LD_PRELOAD
sh-2.01# ldd debian/libpng.so.0.96
./debian/libpng.so.0.96 => ./debian/libpng.so.0.96 (0x4000b000)
libc.so.5 => /lib/libc.so.5 (0x40023000)
libz.so.1 => /usr/lib/libc5-compat/libz.so.1 (0x400df000)
libm.so.5 => /lib/libm.so.5 (0x400ed000)
sh-2.01# dpkg-shlibdeps -O debian/libpng.so.0.96
dpkg-shlibdeps: warning: unknown output from ldd on `debian/libpng.so.0.96': ` ./debian/libpng.so.0.96 => ./debian/libpng.so.0.96 (0x4000b000)'
shlibs:Depends=libc5 (>= 5.4.0-0), zlib1 (>= 1.00)
sh-2.01# exit
phil@ceramic:...libpng0/0.96-3/libpng0-0.96[2]%
Gasp. I either have to encode unset LD_PRELOAD in debian/rules or revert to the ol'su method ! (*or* as an exotic method, I could chmod u+sx my library, making it discard the LD_ environment variables... ??? nah...)
Sooo, now, is it ldd's fault or fakeroot's fault ?
Phil.
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