uuid flag is obsolete and shouldn't be present (see http://git.qemu.org/?p=qemu.git;a=commit;h=315d3184525c90865bf5e1ec4db5e633f1d8c7e8) opengl doesn't require mesa to be built with gles2 enabled (probably this http://git.qemu.org/?p=qemu.git;a=commit;h=fb719563676f8958141a5c984e876a9a1b18f48b) Also tested it with opengl but without gles2 - all works perfect. For more details see: https://bugs.funtoo.org/browse/FL-3490
uuid has been handled via bug 606506 i've dropped the gles2 requirement here: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=cf82853b70bad6ef4277f23f1e356e9f1e51d933
*** Bug 606566 has been marked as a duplicate of this bug. ***