#0  0x00007f651cc51445 in __GI_raise (sig=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
  [Error: ../nptl/sysdeps/unix/sysv/linux/raise.c was not found in source tree]
#1  0x00007f651cc54bab in __GI_abort () at abort.c:91
  [Error: abort.c was not found in source tree]
#2  0x00007f651cc8ee2e in __libc_message (do_abort=1, fmt=0x7f651cd9519d "%s") at ../sysdeps/unix/sysv/linux/libc_fatal.c:201
  [Error: ../sysdeps/unix/sysv/linux/libc_fatal.c was not found in source tree]
#3  0x00007f651cc8eefe in __GI___libc_fatal (message=0x7f651cfe9de8 "libgcc_s.so.1 must be installed for pthread_cancel to work\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:212
  [Error: ../sysdeps/unix/sysv/linux/libc_fatal.c was not found in source tree]
#4  0x00007f651cfe8491 in pthread_cancel_init () at ../nptl/sysdeps/pthread/unwind-forcedunwind.c:65
  [Error: ../nptl/sysdeps/pthread/unwind-forcedunwind.c was not found in source tree]
#5  0x00007f651cfe857c in _Unwind_ForcedUnwind (exc=<optimized out>, stop=<optimized out>, stop_argument=<optimized out>) at ../nptl/sysdeps/pthread/unwind-forcedunwind.c:130
  [Error: ../nptl/sysdeps/pthread/unwind-forcedunwind.c was not found in source tree]
#6  0x00007f651cfe66a0 in __GI___pthread_unwind (buf=<optimized out>) at unwind.c:130
  [Error: unwind.c was not found in source tree]
#7  0x00007f651cfe0ff5 in __do_cancel () at pthreadP.h:265
  [Error: pthreadP.h was not found in source tree]
#8  __pthread_exit (value=<optimized out>, value@entry=0x0) at pthread_exit.c:30
  [Error: pthread_exit.c was not found in source tree]
#9  0x00000000004d0a85 in thumbnail_thread_start (data=<optimized out>) at nautilus-thumbnails.c:560
  555: #ifdef DEBUG_THUMBNAILS
  556: 			g_message ("(Thumbnail Thread) Exiting\n");
  557: #endif
  558: 			thumbnail_thread_is_running = FALSE;
  559: 			pthread_mutex_unlock (&thumbnails_mutex);
  560: 			pthread_exit (NULL);
  561: 		}
  562: 
  563: 		/* Get the next one to make. We leave it on the list until it
  564: 		   is created so the main thread doesn't add it again while we
  565: 		   are creating it. */
#10 0x00007f651cfdfe9a in start_thread (arg=0x7f651268c700) at pthread_create.c:308
  [Error: pthread_create.c was not found in source tree]
#11 0x00007f651cd0d4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
  [Error: ../sysdeps/unix/sysv/linux/x86_64/clone.S was not found in source tree]
#12 0x0000000000000000 in ?? ()