--- a/btrace-1.0.0.ebuild	2009-09-23 20:36:54.000000000 +0000
+++ b/btrace-1.0.0.ebuild	2010-09-03 03:43:48.948028541 +0000
@@ -2,6 +2,8 @@
 # Distributed under the terms of the GNU General Public License v2
 # $Header: /var/cvsroot/gentoo-x86/sys-block/btrace/btrace-1.0.0.ebuild,v 1.2 2009/09/23 20:29:31 patrick Exp $
 
+EAPI="2"
+
 inherit eutils toolchain-funcs flag-o-matic linux-info
 
 DESCRIPTION="btrace can show detailed info about what is happening on a block device io queue."
@@ -24,9 +26,11 @@
 CONFIG_CHECK="~BLK_DEV_IO_TRACE"
 WARNING_BLK_DEV_IO_TRACE="you need to enable BLK_DEV_IO_TRACE kernel option if you want to gather traces from this machine"
 
-src_unpack() {
-	unpack ${A}
+src_prepare() {
 	epatch "${FILESDIR}"/${PN}-1.0.0-parallel-make.patch
+	sed -i \
+		-e '/filter /s/-o/$(LDFLAGS) -o/' \
+		Makefile btt/Makefile btreplay/Makefile
 }
 
 src_compile() {