--- /usr/portage/media-gfx/viewnior/viewnior-1.1.ebuild	2012-04-23 14:01:17.000000000 -0400
+++ /usr/local/portage/media-gfx/viewnior/viewnior-1.1.ebuild	2014-01-11 21:10:01.000000000 -0500
@@ -19,6 +19,10 @@
 	x11-misc/shared-mime-info"
 RDEPEND="${DEPEND}"
 
+src_prepare() {
+	sed -i -e 's/LIBS = @LIBS@/LIBS = @LIBS@ -lm/' "${S}/src/Makefile.in" || die 'sed failed'
+}
+
 src_install() {
 	emake DESTDIR="${D}" install || die "emake install failed"
 	dodoc AUTHORS ChangeLog* TODO README NEWS || die "dodoc failed"