Gentoo's Bugzilla –
Attachment 395510 Details for
Bug 538788dev-util/oprofile-1.0.0 - In function ‘open’, inlined from ‘copy_dumpfile’ at opjitconv.c:219:6: /usr/include/bits/fcntl2.h:50:24: error: call to ‘__open_missing_mode’ declared with attribute error: open with O_CREAT in second argument needs 3 arg