--- mysql-autotools.orig.eclass	2013-01-20 15:41:16.000000000 -0500
+++ mysql-autotools.eclass	2013-01-20 15:42:53.000000000 -0500
@@ -17,7 +17,7 @@
 # the src_unpack, src_prepare, src_configure, src_compile, scr_install,
 # pkg_preinst, pkg_postinst, pkg_config and pkg_postrm phase hooks.
 
-inherit autotools flag-o-matic multilib
+inherit autotools flag-o-matic multilib prefix
 
 #
 # HELPER FUNCTIONS:
@@ -599,6 +599,7 @@
 			-e "/character-set/s|utf8|latin1|g" \
 			"${TMPDIR}/my.cnf.ok"
 	fi
+	eprefixify "${TMPDIR}/my.cnf.ok"
 	newins "${TMPDIR}/my.cnf.ok" my.cnf
 
 	# Minimal builds don't have the MySQL server