eina: remove warning when building without siginfo_t.
eina: remove warning when building without siginfo_t.


git-svn-id: a6113611d365f0fc061992be0d1d0b451b434026@65437 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33

jordemort/eina,jordemort/eina,jordemort/eina