--- autopano-sift-C-2.5.1.ebuild.orig	2013-04-19 18:15:46.000000000 +0200
+++ autopano-sift-C-2.5.1.ebuild	2013-04-19 18:49:53.000000000 +0200
@@ -2,6 +2,8 @@
 # Distributed under the terms of the GNU General Public License v2
 # $Header: /var/cvsroot/gentoo-x86/media-gfx/autopano-sift-C/autopano-sift-C-2.5.1.ebuild,v 1.5 2010/11/08 21:56:41 maekke Exp $
 
+EAPI="2"
+
 inherit cmake-utils versionator
 
 DESCRIPTION="SIFT algorithm for automatic panorama creation in C"
@@ -23,3 +25,10 @@
 	sys-libs/zlib
 	virtual/jpeg"
 RDEPEND="${DEPEND}"
+
+src_prepare() {
+	cmake-utils_src_prepare
+
+	sed -e '/set.*all_libs.*libsift/ s/libsift/\0 m/' \
+		-i CMakeLists.txt
+}