Re: [Ekiga-devel-list] Unnecessary linked libraries

[Eugen Dedu <Eugen Dedu pu-pm univ-fcomte fr>]

Hm...  Here is the line for building ekiga, where -lz, -ldbus-1, 
-lpthread for ex. are present:

g++ -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include 
-I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pango-1.0 
-I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include 
-I/usr/include/freetype2 -I/usr/include/libpng12 -I/usr/include/pixman-1 
-pthread -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -DORBIT2=1 
-pthread -I/usr/include/libgnome-2.0 -I/usr/include/orbit-2.0 
-I/usr/include/gconf/2 -I/usr/include/gnome-vfs-2.0 
-I/usr/lib/gnome-vfs-2.0/include -I/usr/include/glib-2.0 
-I/usr/lib/glib-2.0/include -I/usr/include/libbonobo-2.0 
-I/usr/include/bonobo-activation-2.0 -I/usr/include/libgnomeui-2.0 
-I/usr/include/libart-2.0 -I/usr/include/gnome-keyring-1 
-I/usr/include/libbonoboui-2.0 -I/usr/include/libgnomecanvas-2.0 
-I/usr/include/gtk-2.0 -I/usr/include/libxml2 -I/usr/include/pango-1.0 
-I/usr/include/gail-1.0 -I/usr/include/freetype2 -I/usr/include/atk-1.0 
-I/usr/lib/gtk-2.0/include -I/usr/include/cairo -I/usr/include/libpng12 
-I/usr/include/pixman-1 -I/usr/include/dbus-1.0 
-I/usr/lib/dbus-1.0/include -I/usr/include/glib-2.0 
-I/usr/lib/glib-2.0/include -I/usr/include/opal -DPTRACING -DNDEBUG -Os 
-g -fno-exceptions -felide-constructors -I/usr/include/sigc++-2.0 
-I/usr/lib/sigc++-2.0/include -I/usr/include/libxml2 -g -O2 -Wall 
-Wextra -Winit-self -Wswitch-default -Wswitch-enum -Wstrict-aliasing=2 
-Wfloat-equal -Wshadow -o ekiga accounts.o callbacks.o conf.o dialpad.o 
assistant.o main.o misc.o preferences.o tools.o statusicon.o 
statusmenu.o videoinput.o videooutput.o audiodev.o ekiga.o manager.o 
h323.o pcss.o sip-presentity.o sip-chat-simple.o sip-dialect.o sip.o 
opal-account.o opal-bank.o opal-call.o opal-codec-description.o 
opal-gmconf-bridge.o opal-main.o dbus.o -Wl,--export-dynamic -pthread 
-pthread  ../lib/.libs/libekiga.a ../lib/engine/.libs/libekiga_engine.a 
/usr/lib/libfreetype.so -lz -lfontconfig -lpng12 -lxcb-render-util 
-lxcb-render -lxcb -lXrender -lX11 -lpixman-1 -lXv 
/usr/lib/libavahi-common.so /usr/lib/libavahi-client.so 
/usr/lib/libavahi-glib.so -lebook-1.2 -ledataserver-1.2 -llber -lldap 
/usr/lib/libgnomeui-2.so -lSM -lICE /usr/lib/libbonoboui-2.so 
/usr/lib/libgnomevfs-2.so /usr/lib/libgnomecanvas-2.so 
/usr/lib/libgnome-2.so /usr/lib/libpopt.so /usr/lib/libbonobo-2.so 
/usr/lib/libbonobo-activation.so /usr/lib/libORBit-2.so 
/usr/lib/libart_lgpl_2.so /usr/lib/libgtk-x11-2.0.so 
/usr/lib/libgdk-x11-2.0.so /usr/lib/libatk-1.0.so 
/usr/lib/libgdk_pixbuf-2.0.so -lm /usr/lib/libpangocairo-1.0.so 
/usr/lib/libpango-1.0.so /usr/lib/libcairo.so /usr/lib/libgconf-2.so 
/usr/lib/libgthread-2.0.so -lrt /usr/lib/libgmodule-2.0.so -ldbus-glib-1 
-ldbus-1 /usr/lib/libgobject-2.0.so /usr/lib/libglib-2.0.so -ldl 
-lpthread -lopal -lpt /usr/lib/libsigc-2.0.so /usr/lib/libxml2.so -lresolv

Damien Sandras wrote:
> Hi,
>
> I think they are dependancies of our dependancies.
>
> Le mardi 22 juillet 2008 à 11:13 +0200, Eugen Dedu a écrit :
> > Hi,
> >
> > During building debian packages of ekiga, ptlib and opal, I receive many 
> > warnings about libraries linked uselessly.  Can these libraries be 
> > removed from the list of linked libraries?  I imagine however that they 
> > are needed for certain parameteres to configure, so if it is to 
> > complicated, let's stay with the actual code.  I think (so not sure) 
> > that this might have negative influences to entering in debian testing 
> > of these packages: imagine that libz does not enter testing, this then 
> > prevents ekiga to enter testing, because its executable erroneously 
> > depends on it...
> >
> > Here are the warnings:
> >
> >
> >
> > for ekiga:
> > dpkg-shlibdeps: warning: dependency on libz.so.1 could be avoided if 
> > "debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly linked against 
> > it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libdbus-1.so.3 could be avoided 
> > if "debian/ekiga-snapshot/usr/bin/ekiga-helper 
> > debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly linked against 
> > it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libbonobo-activation.so.4 could 
> > be avoided if "debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly 
> > linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libXrender.so.1 could be avoided 
> > if "debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly linked 
> > against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libfontconfig.so.1 could be 
> > avoided if "debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly 
> > linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libresolv.so.2 could be avoided 
> > if "debian/ekiga-snapshot/usr/bin/ekiga-helper 
> > debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly linked against 
> > it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libbonoboui-2.so.0 could be 
> > avoided if "debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly 
> > linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libpopt.so.0 could be avoided if 
> > "debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly linked against 
> > it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libdl.so.2 could be avoided if 
> > "debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly linked against 
> > it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libgnomecanvas-2.so.0 could be 
> > avoided if "debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly 
> > linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libgnomevfs-2.so.0 could be 
> > avoided if "debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly 
> > linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libpixman-1.so.0 could be avoided 
> > if "debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly linked 
> > against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libpangocairo-1.0.so.0 could be 
> > avoided if "debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly 
> > linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libfreetype.so.6 could be avoided 
> > if "debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly linked 
> > against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libICE.so.6 could be avoided if 
> > "debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly linked against 
> > it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libORBit-2.so.0 could be avoided 
> > if "debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly linked 
> > against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on librt.so.1 could be avoided if 
> > "debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly linked against 
> > it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libxcb-render-util.so.0 could be 
> > avoided if "debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly 
> > linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libxcb-render.so.0 could be 
> > avoided if "debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly 
> > linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libgmodule-2.0.so.0 could be 
> > avoided if "debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly 
> > linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libcairo.so.2 could be avoided if 
> > "debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly linked against 
> > it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libbonobo-2.so.0 could be avoided 
> > if "debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly linked 
> > against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libSM.so.6 could be avoided if 
> > "debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly linked against 
> > it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libpng12.so.0 could be avoided if 
> > "debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly linked against 
> > it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libxcb.so.1 could be avoided if 
> > "debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly linked against 
> > it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libart_lgpl_2.so.2 could be 
> > avoided if "debian/ekiga-snapshot/usr/bin/ekiga" were not uselessly 
> > linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libz.so.1 could be avoided if 
> > "debian/ekiga-snapshot-gtkonly/usr/bin/ekiga" were not uselessly linked 
> > against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libdbus-1.so.3 could be avoided 
> > if "debian/ekiga-snapshot-gtkonly/usr/bin/ekiga-helper 
> > debian/ekiga-snapshot-gtkonly/usr/bin/ekiga" were not uselessly linked 
> > against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libbonobo-activation.so.4 could 
> > be avoided if "debian/ekiga-snapshot-gtkonly/usr/bin/ekiga" were not 
> > uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libXrender.so.1 could be avoided 
> > if "debian/ekiga-snapshot-gtkonly/usr/bin/ekiga" were not uselessly 
> > linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libfontconfig.so.1 could be 
> > avoided if "debian/ekiga-snapshot-gtkonly/usr/bin/ekiga" were not 
> > uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libresolv.so.2 could be avoided 
> > if "debian/ekiga-snapshot-gtkonly/usr/bin/ekiga-helper 
> > debian/ekiga-snapshot-gtkonly/usr/bin/ekiga" were not uselessly linked 
> > against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libpopt.so.0 could be avoided if 
> > "debian/ekiga-snapshot-gtkonly/usr/bin/ekiga" were not uselessly linked 
> > against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libdl.so.2 could be avoided if 
> > "debian/ekiga-snapshot-gtkonly/usr/bin/ekiga" were not uselessly linked 
> > against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libpixman-1.so.0 could be avoided 
> > if "debian/ekiga-snapshot-gtkonly/usr/bin/ekiga" were not uselessly 
> > linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libgnome-2.so.0 could be avoided 
> > if "debian/ekiga-snapshot-gtkonly/usr/bin/ekiga" were not uselessly 
> > linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libpangocairo-1.0.so.0 could be 
> > avoided if "debian/ekiga-snapshot-gtkonly/usr/bin/ekiga" were not 
> > uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libfreetype.so.6 could be avoided 
> > if "debian/ekiga-snapshot-gtkonly/usr/bin/ekiga" were not uselessly 
> > linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libORBit-2.so.0 could be avoided 
> > if "debian/ekiga-snapshot-gtkonly/usr/bin/ekiga" were not uselessly 
> > linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on librt.so.1 could be avoided if 
> > "debian/ekiga-snapshot-gtkonly/usr/bin/ekiga" were not uselessly linked 
> > against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libxcb-render-util.so.0 could be 
> > avoided if "debian/ekiga-snapshot-gtkonly/usr/bin/ekiga" were not 
> > uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libxcb-render.so.0 could be 
> > avoided if "debian/ekiga-snapshot-gtkonly/usr/bin/ekiga" were not 
> > uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libgmodule-2.0.so.0 could be 
> > avoided if "debian/ekiga-snapshot-gtkonly/usr/bin/ekiga" were not 
> > uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libcairo.so.2 could be avoided if 
> > "debian/ekiga-snapshot-gtkonly/usr/bin/ekiga" were not uselessly linked 
> > against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libbonobo-2.so.0 could be avoided 
> > if "debian/ekiga-snapshot-gtkonly/usr/bin/ekiga" were not uselessly 
> > linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libpng12.so.0 could be avoided if 
> > "debian/ekiga-snapshot-gtkonly/usr/bin/ekiga" were not uselessly linked 
> > against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libxcb.so.1 could be avoided if 
> > "debian/ekiga-snapshot-gtkonly/usr/bin/ekiga" were not uselessly linked 
> > against it (they use none of its symbols).
> >
> >
> >
> > for ptlib:
> > dpkg-shlibdeps: warning: dependency on libgcc_s.so.1 could be avoided if 
> > "debian/libpt-snapshot/usr/lib/libpt.so.2.3-beta0" were not uselessly 
> > linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libgcc_s.so.1 could be avoided if 
> > "debian/libpt-snapshot-ptrace/usr/lib/ptlib-snapshot/2.3-beta0/device/videoinput/v4l2_pwplugin.so 
> > debian/libpt-snapshot-ptrace/u
> > sr/lib/ptlib-snapshot/2.3-beta0/device/sound/alsa_pwplugin.so 
> > debian/libpt-snapshot-ptrace/usr/lib/libpt.so.2.3-beta0 
> > debian/libpt-snapshot-ptrace/usr/lib/ptlib-snapshot/2.3-beta0/device/videoinput/avc
> > _pwplugin.so 
> > debian/libpt-snapshot-ptrace/usr/lib/ptlib-snapshot/2.3-beta0/device/videoinput/v4l_pwplugin.so 
> > debian/libpt-snapshot-ptrace/usr/lib/ptlib-snapshot/2.3-beta0/device/sound/oss_pwplugin.so 
> > d
> > ebian/libpt-snapshot-ptrace/usr/lib/ptlib-snapshot/2.3-beta0/device/videoinput/dc_pwplugin.so" 
> > were not uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libgcc_s.so.1 could be avoided if 
> > "debian/libpt-snapshot-develop/usr/lib/libpt.so.2.3-beta0 
> > debian/libpt-snapshot-develop/usr/lib/ptlib-snapshot/2.3-beta0/device/
> > videoinput/avc_pwplugin.so 
> > debian/libpt-snapshot-develop/usr/lib/ptlib-snapshot/2.3-beta0/device/sound/alsa_pwplugin.so 
> > debian/libpt-snapshot-develop/usr/lib/ptlib-snapshot/2.3-beta0/device/sound/oss_p
> > wplugin.so 
> > debian/libpt-snapshot-develop/usr/lib/ptlib-snapshot/2.3-beta0/device/videoinput/v4l_pwplugin.so 
> > debian/libpt-snapshot-develop/usr/lib/ptlib-snapshot/2.3-beta0/device/videoinput/v4l2_pwplugi
> > n.so 
> > debian/libpt-snapshot-develop/usr/lib/ptlib-snapshot/2.3-beta0/device/videoinput/dc_pwplugin.so" 
> > were not uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libgcc_s.so.1 could be avoided if 
> > "debian/libpt-snapshot-plugins-alsa/usr/lib/ptlib-snapshot/2.3-beta0/device/sound/alsa_pwplugin.so" 
> > were not uselessly linked ag
> > ainst it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libgcc_s.so.1 could be avoided if 
> > "debian/libpt-snapshot-plugins-oss/usr/lib/ptlib-snapshot/2.3-beta0/device/sound/oss_pwplugin.so" 
> > were not uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libgcc_s.so.1 could be avoided if 
> > "debian/libpt-snapshot-plugins-v4l2/usr/lib/ptlib-snapshot/2.3-beta0/device/videoinput/v4l2_pwplugin.so" 
> > were not uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libgcc_s.so.1 could be avoided if 
> > "debian/libpt-snapshot-plugins-v4l/usr/lib/ptlib-snapshot/2.3-beta0/device/videoinput/v4l_pwplugin.so" 
> > were not uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libgcc_s.so.1 could be avoided if 
> > "debian/libpt-snapshot-plugins-dc/usr/lib/ptlib-snapshot/2.3-beta0/device/videoinput/dc_pwplugin.so" 
> > were not uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libdv.so.4 could be avoided if 
> > "debian/libpt-snapshot-plugins-dc/usr/lib/ptlib-snapshot/2.3-beta0/device/videoinput/dc_pwplugin.so" 
> > were not uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libgcc_s.so.1 could be avoided if 
> > "debian/libpt-snapshot-plugins-avc/usr/lib/ptlib-snapshot/2.3-beta0/device/videoinput/avc_pwplugin.so" 
> > were not uselessly linked against it (they use none of its symbols).
> >
> >
> >
> > for opal:
> > dpkg-shlibdeps: warning: dependency on libssl.so.0.9.8 could be avoided 
> > if "debian/libopal-snapshot/usr/lib/libopal.so.3.3-beta0" were not 
> > uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libldap_r-2.4.so.2 could be 
> > avoided if "debian/libopal-snapshot/usr/lib/libopal.so.3.3-beta0" were 
> > not uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on liblber-2.4.so.2 could be avoided 
> > if "debian/libopal-snapshot/usr/lib/libopal.so.3.3-beta0" were not 
> > uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libresolv.so.2 could be avoided 
> > if "debian/libopal-snapshot/usr/lib/libopal.so.3.3-beta0" were not 
> > uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libexpat.so.1 could be avoided if 
> > "debian/libopal-snapshot/usr/lib/libopal.so.3.3-beta0" were not 
> > uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libpthread.so.0 could be avoided 
> > if "debian/libopal-snapshot/usr/lib/libopal.so.3.3-beta0" were not 
> > uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libdl.so.2 could be avoided if 
> > "debian/libopal-snapshot/usr/lib/libopal.so.3.3-beta0" were not 
> > uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libSDL-1.2.so.0 could be avoided 
> > if "debian/libopal-snapshot/usr/lib/libopal.so.3.3-beta0" were not 
> > uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libogg.so.0 could be avoided if 
> > "debian/libopal-snapshot/usr/lib/ptlib-snapshot/opal-3.3.0/codecs/video/theora_video_pwplugin.so" 
> > were not uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libsasl2.so.2 could be avoided if 
> > "debian/libopal-snapshot/usr/lib/libopal.so.3.3-beta0" were not 
> > uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libx264.so.59 could be avoided if 
> > "debian/libopal-snapshot-plugins-h264/usr/lib/ptlib-snapshot/opal-3.3.0/codecs/video/h264_video_pwplugin_helper" 
> > were not uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libpthread.so.0 could be avoided 
> > if 
> > "debian/libopal-snapshot-plugins-h264/usr/lib/ptlib-snapshot/opal-3.3.0/codecs/video/h264_video_pwplugin_helper" 
> > were not uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libssl.so.0.9.8 could be avoided 
> > if "debian/libopal-snapshot-ptrace/usr/lib/libopal.so.3.3-beta0" were 
> > not uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libldap_r-2.4.so.2 could be 
> > avoided if "debian/libopal-snapshot-ptrace/usr/lib/libopal.so.3.3-beta0" 
> > were not uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on liblber-2.4.so.2 could be avoided 
> > if "debian/libopal-snapshot-ptrace/usr/lib/libopal.so.3.3-beta0" were 
> > not uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libresolv.so.2 could be avoided 
> > if "debian/libopal-snapshot-ptrace/usr/lib/libopal.so.3.3-beta0" were 
> > not uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libexpat.so.1 could be avoided if 
> > "debian/libopal-snapshot-ptrace/usr/lib/libopal.so.3.3-beta0" were not 
> > uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libpthread.so.0 could be avoided 
> > if "debian/libopal-snapshot-ptrace/usr/lib/libopal.so.3.3-beta0" were 
> > not uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libdl.so.2 could be avoided if 
> > "debian/libopal-snapshot-ptrace/usr/lib/libopal.so.3.3-beta0" were not 
> > uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libSDL-1.2.so.0 could be avoided 
> > if "debian/libopal-snapshot-ptrace/usr/lib/libopal.so.3.3-beta0" were 
> > not uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libogg.so.0 could be avoided if 
> > "debian/libopal-snapshot-ptrace/usr/lib/ptlib-snapshot/opal-3.3.0/codecs/video/theora_video_pwplugin.so" 
> > were not uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libsasl2.so.2 could be avoided if 
> > "debian/libopal-snapshot-ptrace/usr/lib/libopal.so.3.3-beta0" were not 
> > uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libssl.so.0.9.8 could be avoided 
> > if "debian/libopal-snapshot-develop/usr/lib/libopal.so.3.3-beta0" were 
> > not uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libldap_r-2.4.so.2 could be 
> > avoided if 
> > "debian/libopal-snapshot-develop/usr/lib/libopal.so.3.3-beta0" were not 
> > uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on liblber-2.4.so.2 could be avoided 
> > if "debian/libopal-snapshot-develop/usr/lib/libopal.so.3.3-beta0" were 
> > not uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libresolv.so.2 could be avoided 
> > if "debian/libopal-snapshot-develop/usr/lib/libopal.so.3.3-beta0" were 
> > not uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libexpat.so.1 could be avoided if 
> > "debian/libopal-snapshot-develop/usr/lib/libopal.so.3.3-beta0" were not 
> > uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libpthread.so.0 could be avoided 
> > if "debian/libopal-snapshot-develop/usr/lib/libopal.so.3.3-beta0" were 
> > not uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libdl.so.2 could be avoided if 
> > "debian/libopal-snapshot-develop/usr/lib/libopal.so.3.3-beta0" were not 
> > uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libSDL-1.2.so.0 could be avoided 
> > if "debian/libopal-snapshot-develop/usr/lib/libopal.so.3.3-beta0" were 
> > not uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libogg.so.0 could be avoided if 
> > "debian/libopal-snapshot-develop/usr/lib/ptlib-snapshot/opal-3.3.0/codecs/video/theora_video_pwplugin.so" 
> > were not uselessly linked against it (they use none of its symbols).
> > dpkg-shlibdeps: warning: dependency on libsasl2.so.2 could be avoided if 
> > "debian/libopal-snapshot-develop/usr/lib/libopal.so.3.3-beta0" were not 
> > uselessly linked against it (they use none of its symbols).