--- weechat-9999-old.ebuild     2015-01-30 05:54:47.313242000 +0100
+++ weechat-9999.ebuild 2015-01-30 05:51:09.035242000 +0100
@@ -122,6 +122,7 @@
                $(cmake-utils_use_enable trigger)
                $(cmake-utils_use_enable xfer)
        )
+       [[ "${PYTHON_SINGLE_TARGET}" = python3_* ]] && mycmakeargs="${mycmakeargs} $(cmake-utils_use_enable python PYTHON3)"
 
        cmake-utils_src_configure
 }