#0  0xb7ee6f99 in pkgDepCache::CheckDep ()
   from /usr/lib/libapt-pkg-libc6.7-6.so.4.6
#1  0xb7ee7c91 in pkgDepCache::DependencyState ()
   from /usr/lib/libapt-pkg-libc6.7-6.so.4.6
#2  0xb7eebc59 in pkgDepCache::Update ()
   from /usr/lib/libapt-pkg-libc6.7-6.so.4.6
#3  0xb7eec1ac in pkgDepCache::Init ()
   from /usr/lib/libapt-pkg-libc6.7-6.so.4.6
#4  0x081a42f9 in ?? ()
#5  0x081a5f3f in ?? ()
#6  0x081a6183 in ?? ()
#7  0x081aae3f in ?? ()
#8  0x080619ea in ?? ()
#9  0xb7b0d450 in __libc_start_main () from /lib/i686/cmov/libc.so.6
#10 0x0805fe71 in ?? ()
(gdb)