Reproducable: always Around 8 days ago wpa_supplicant-0.6.4 has been released
Created attachment 163202 [details, diff] Diff betwen 0.6.3's ebuild and 0.6.4's Diff betwen 0.6.3's ebuild and 0.6.4's
=net-wireless/wpa_supplicant-0.6.4 is in the tree, thanks for the bug report.