Gentoo's Bugzilla –
Attachment 563388 Details for
Bug 677014sys-boot/refind-0.10.4-r2 - In file included from ../refind/global.h:54:0, from ../refind/lib.h:56, from screen.c:60: ../refind/../EfiLib/GenericBdsLib.h:964:1: error: conflicting types for ‘CatPrint’