Alan,
I think it's likely in the future (if not already) that the Mir server/shell 
will be a separate snap to any app snaps. And certainly it's difficult to make 
anything completely foolproof, because fools are so ingenious. But we can build 
things that are more robust in the face of potential future mistakes. So if 
those future mistakes include bringing your own libmir* then it would be nice 
if that worked more often. Even if we don't like the idea, it's better than 
dealing with high severity bug reports.

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https://bugs.launchpad.net/bugs/1507982

Title:
  [regression] OTA7 broke previously working app

Status in Canonical System Image:
  Confirmed
Status in Mir:
  Won't Fix
Status in Mir 0.16 series:
  Won't Fix
Status in Mir 0.17 series:
  Won't Fix
Status in mir package in Ubuntu:
  Won't Fix

Bug description:
  OTA7 broke previously working app
  after OTA7 update on Meizu MX4, glmark2 stopped working 
https://uappexplorer.com/app/glmark2.sturmflut
  system updates should not break apps

  
  ~/.cache/upstart$ cat application-click-glmark2.sturmflut_glmark2_0.4.1.log
  libust[24877/24879]: Error: Error opening shm /lttng-ust-wait-5-32011 (in 
get_wait_shm() at lttng-ust-comm.c:958)
  libust[24877/24879]: Error: Error opening shm /lttng-ust-wait-5-32011 (in 
get_wait_shm() at lttng-ust-comm.c:958)
  libust[24877/24878]: Error: Error opening shm /lttng-ust-wait-5 (in 
get_wait_shm() at lttng-ust-comm.c:958)
  libust[24877/24878]: Error: Error opening shm /lttng-ust-wait-5 (in 
get_wait_shm() at lttng-ust-comm.c:958)
  Error: Couldn't connect to the Mir display server
  Error: main: Could not initialize canvas
  [1445336019.182277] <ERROR> MirConnectionAPI: Caught exception at client 
library boundary (in release): 
/build/buildd/mir-0.13.3+15.04.20150617/src/client/rpc/stream_socket_transport.cpp(168):
 Throw in function virtual void 
mir::client::rpc::StreamSocketTransport::send_message(const 
std::vector<unsigned char>&, const std::vector<mir::Fd>&)
  Dynamic exception type: 
N5boost16exception_detail10clone_implINS0_19error_info_injectorIN3mir25socket_disconnected_errorEEEEE
  std::exception::what: Failed to send message to server: Broken pipe
  32, "Broken pipe"
  libust[24922/24923]: Error: Error opening shm /lttng-ust-wait-5 (in 
get_wait_shm() at lttng-ust-comm.c:958)
  libust[24922/24923]: Error: Error opening shm /lttng-ust-wait-5 (in 
get_wait_shm() at lttng-ust-comm.c:958)
  libust[24922/24924]: Error: Error opening shm /lttng-ust-wait-5-32011 (in 
get_wait_shm() at lttng-ust-comm.c:958)
  libust[24922/24924]: Error: Error opening shm /lttng-ust-wait-5-32011 (in 
get_wait_shm() at lttng-ust-comm.c:958)
  Error: Couldn't connect to the Mir display server
  Error: main: Could not initialize canvas
  [1445336029.784398] <ERROR> MirConnectionAPI: Caught exception at client 
library boundary (in release): 
/build/buildd/mir-0.13.3+15.04.20150617/src/client/rpc/stream_socket_transport.cpp(168):
 Throw in function virtual void 
mir::client::rpc::StreamSocketTransport::send_message(const 
std::vector<unsigned char>&, const std::vector<mir::Fd>&)
  Dynamic exception type: 
N5boost16exception_detail10clone_implINS0_19error_info_injectorIN3mir25socket_disconnected_errorEEEEE
  std::exception::what: Failed to send message to server: Broken pipe
  32, "Broken pipe"

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