--- openldap-2.4.30.ebuild	2012-03-17 20:01:23.000000000 +0200
+++ openldap-2.4.30.ebuild	2012-03-19 23:12:08.000000000 +0200
@@ -298,6 +298,9 @@
 	#Fix for glibc-2.8 and ucred. Bug 228457.
 	append-flags -D_GNU_SOURCE
 
+	# Bug 408001
+	use elibc_FreeBSD && append-flags -DMDB_DSYNC=O_SYNC -DMDB_FDATASYNC=fsync
+
 	use debug && myconf="${myconf} $(use_enable debug)"
 
 	# ICU usage is not configurable