Mutex is deprecated since 2.32
Submitted by Daniel Espinosa Ortiz
Compiling libgee from sources on Debian 8, fails due to GLib.Mutex is deprecated since 2.32.
In order to compile you need to add --target-glib=2.32 to Makefile.am _VALAFLAGS, but may this is not correct.
May libgee needs to upgrade to GLib.Task or some thing else.
Version: git master