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[Alexandros Frantzis <alexandros.frantzis@xxxxxxxxxxxxx>]

I have started experimenting with an alternative solution which is much
simpler than what I originally proposed. The solution is to ensure
libprotobuf exposes only the symbols it has to (i.e. google protobuf
related), to avoid binding to libstdc++, and thus working around the
problem.

I have pushed package protobuf-2.6.1-1alf2 with the experimental fix at:

https://launchpad.net/~afrantzis/+archive/ubuntu/staging/+packages

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Touch seeded packages, which is subscribed to mir in Ubuntu.
https://bugs.launchpad.net/bugs/1391976

Title:
  Loading libmircommon.so twice leads to a segfault in libprotobuf.so

Status in Mir:
  Confirmed
Status in mir package in Ubuntu:
  Confirmed

Bug description:
  Can be reproduced with: load_twice libmircommon.so.1 (or .2)
  For recent versions of mir use: load_twice libmirclient.so.X (currently .8)

  load_twice.c:

  #include <stdio.h>
  #include <dlfcn.h>

  int main(int argc, char** argv)
  {
      void *dl;
      int i;

      for (i = 0; i < 2; i++)
      {
         dl = dlopen (argv[1], RTLD_LAZY);
         printf ("%d open dl: %p\n", i,  dl);
         if (dl)
             dlclose (dl);
      }
  }

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