glib-2.76 drops slice and switches to the system's malloc instead. This causes some bugs in glib consumers to be exposed. ASAN or Valgrind can help debug these issues.
mcabber-1.1.2-r1 with glib-2.76.0 When running mcabber, it crashes giving the following message malloc(): unsorted double linked list corrupted Aborted At the time of compiling mcabber-1.1.2-r1 with glib-2.76.0 everything was normal, unfortunately I have not saved the build logs. Only solution was UD to glib-2.74.6.