Index: files/patch-glib_gthread-posix.c
===================================================================
--- files/patch-glib_gthread-posix.c	(revision 323030)
+++ files/patch-glib_gthread-posix.c	(working copy)
@@ -1,5 +1,5 @@
---- glib/gthread-posix.c.orig	2012-11-10 03:24:06.000000000 +0000
-+++ glib/gthread-posix.c	2012-11-12 18:06:36.000000000 +0000
+--- glib/gthread-posix.c.orig	2012-11-26 17:52:48.000000000 +0100
++++ glib/gthread-posix.c	2013-07-15 21:44:24.000000000 +0200
 @@ -89,7 +89,7 @@
    if G_UNLIKELY (mutex == NULL)
      g_thread_abort (errno, "malloc");
@@ -18,3 +18,21 @@
    pthread_mutexattr_destroy (&attr);
  #endif
  
+@@ -226,8 +226,15 @@
+ {
+   gint status;
+ 
+-  if G_UNLIKELY ((status = pthread_mutex_unlock (g_mutex_get_impl (mutex))) != 0)
+-    g_thread_abort (status, "pthread_mutex_unlock");
++  // EINVAL = mutex invalid
++  // EPERM = current thread does not hold a lock on mutex
++  status = pthread_mutex_unlock (g_mutex_get_impl (mutex));
++
++  if G_UNLIKELY (status != 0)
++  {
++    if (status != EPERM)
++      g_thread_abort (status, "pthread_mutex_unlock");
++  }
+ }
+ 
+ /**