--- a/gqview-2.1.5.ebuild	2013-09-02 04:47:25.925000000 +0800
+++ a/gqview-2.1.5.ebuild	2013-09-02 06:38:18.615000000 +0800
@@ -2,8 +2,11 @@ 
 # Distributed under the terms of the GNU General Public License v2
 # $Header: /var/cvsroot/gentoo-x86/media-gfx/gqview/gqview-2.1.5.ebuild,v 1.16 2012/07/26 18:41:29 blueness Exp $
 
-EAPI=2
-inherit eutils
+EAPI=5
+
+AUTOTOOLS_AUTORECONF=1
+AUTOTOOLS_IN_SOURCE_BUILD=1
+inherit eutils autotools-utils
 
 DESCRIPTION="A GTK-based image browser"
 HOMEPAGE="http://gqview.sourceforge.net/"
@@ -23,12 +26,14 @@ 
 
 src_prepare() {
 	epatch "${FILESDIR}/${P}-windows.patch"
+	epatch "${FILESDIR}/${P}-libm.patch"
 	sed -i \
 		-e '/^Encoding/d' \
 		-e '/^Icon/s/\.png//' \
 		-e '/^Categories/s/Application;//' \
 		gqview.desktop \
 		|| die
+	autotools-utils_src_prepare
 }
 
 src_configure() {