Mir EGL platform is gone

** Changed in: mesa (Ubuntu)
       Status: Confirmed => Invalid

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https://bugs.launchpad.net/bugs/1153122

Title:
  Segfault in libX11.so.6 when running a Mir client without the Mir-
  Mesa-extensions installed.

Status in Mir:
  Invalid
Status in mesa package in Ubuntu:
  Invalid

Bug description:
  step 1 
  ./mir ; kill $!

  step 2 
  gdb ./mir_demo_client_accelerated
  GNU gdb (GDB) 7.5-ubuntu
  Copyright (C) 2012 Free Software Foundation, Inc.
  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
  This is free software: you are free to change and redistribute it.
  There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
  and "show warranty" for details.
  This GDB was configured as "i686-linux-gnu".
  For bug reporting instructions, please see:
  <http://www.gnu.org/software/gdb/bugs/>...
  Reading symbols from 
/data/Projects/mir/build/bin/mir_demo_client_accelerated...done.
  (gdb) r
  Starting program: /data/Projects/mir/build/bin/mir_demo_client_accelerated 
  [Thread debugging using libthread_db enabled]
  Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
  Starting
  [New Thread 0xb7948b40 (LWP 2301)]
  Connected
  Surface created

  Program received signal SIGSEGV, Segmentation fault.
  0x42494c47 in ?? ()
  (gdb) bt
  #0  0x42494c47 in ?? ()
  #1  0xb79da9c5 in XQueryExtension () from /usr/lib/i386-linux-gnu/libX11.so.6
  #2  0xb79ce95a in XInitExtension () from /usr/lib/i386-linux-gnu/libX11.so.6
  #3  0xb712eb14 in XextAddDisplay () from /usr/lib/i386-linux-gnu/libXext.so.6
  #4  0xb6cccc0e in ?? () from /usr/lib/i386-linux-gnu/egl/egl_gallium.so
  #5  0xb6cccecc in ?? () from /usr/lib/i386-linux-gnu/egl/egl_gallium.so
  #6  0xb6ccc23a in ?? () from /usr/lib/i386-linux-gnu/egl/egl_gallium.so
  #7  0xb6cd13c7 in ?? () from /usr/lib/i386-linux-gnu/egl/egl_gallium.so
  #8  0xb6cc8155 in ?? () from /usr/lib/i386-linux-gnu/egl/egl_gallium.so
  #9  0xb7f695fa in ?? () from /usr/lib/i386-linux-gnu/mesa-egl/libEGL.so.1
  #10 0xb7f699f0 in _eglMatchDriver () from 
/usr/lib/i386-linux-gnu/mesa-egl/libEGL.so.1
  #11 0xb7f64400 in eglInitialize () from 
/usr/lib/i386-linux-gnu/mesa-egl/libEGL.so.1
  #12 0x0804953f in main (argc=1, argv=0xbffff704) at 
/data/Projects/mir/examples/demo_client_accelerated.cpp:124

  line 124 of the demo_client_accelerated.cpp is 
  rc = eglInitialize(disp, &major, &minor);

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