Gentoo's Bugzilla –
Attachment 550490 Details for
Bug 668252media-libs/libomxil-bellagio-0.9.3 : /.../string_fortified.h:34:10: error: _builtin_memcpy forming offset [25, 72] is out of the bounds [0, 24] of object uuid with type OMX_U32[3] {aka long unsigned int[3] } [-Werror=array-bounds]