From 13afdb218b4c62a228272a9150659ee368cdaedc Mon Sep 17 00:00:00 2001
From: Jason Zaman <perfinion@gentoo.org>
Date: Tue, 9 May 2017 13:46:53 +0800
Subject: [PATCH] xfce-base/xfwm4: enable xpresent extension

Package-Manager: Portage-2.3.5, Repoman-2.3.1
---
 xfce-base/xfwm4/metadata.xml        | 11 +++++++----
 xfce-base/xfwm4/xfwm4-4.13.0.ebuild |  6 +++---
 2 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/xfce-base/xfwm4/metadata.xml b/xfce-base/xfwm4/metadata.xml
index 359901b31db4..60c89e524c57 100644
--- a/xfce-base/xfwm4/metadata.xml
+++ b/xfce-base/xfwm4/metadata.xml
@@ -1,8 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
-  <maintainer type="project">
-    <email>xfce@gentoo.org</email>
-    <name>XFCE Team</name>
-  </maintainer>
+	<maintainer type="project">
+		<email>xfce@gentoo.org</email>
+		<name>XFCE Team</name>
+	</maintainer>
+	<use>
+		<flag name="xpresent">Enable the XPresent extension for sync to vblank</flag>
+	</use>
 </pkgmetadata>
diff --git a/xfce-base/xfwm4/xfwm4-4.13.0.ebuild b/xfce-base/xfwm4/xfwm4-4.13.0.ebuild
index 89fdca3524a2..ec35259bf1d1 100644
--- a/xfce-base/xfwm4/xfwm4-4.13.0.ebuild
+++ b/xfce-base/xfwm4/xfwm4-4.13.0.ebuild
@@ -10,7 +10,7 @@ SRC_URI="mirror://xfce/src/xfce/${PN}/${PV%.*}/${P}.tar.bz2"
 LICENSE="GPL-2"
 SLOT="0"
 KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~sparc ~x86 ~amd64-fbsd ~x86-fbsd ~amd64-linux ~x86-linux ~x86-solaris"
-IUSE="opengl startup-notification +xcomposite"
+IUSE="opengl startup-notification +xcomposite xpresent"
 
 RDEPEND="dev-libs/dbus-glib:=
 	>=dev-libs/glib-2.20:=
@@ -26,6 +26,7 @@ RDEPEND="dev-libs/dbus-glib:=
 	>=xfce-base/xfconf-4.10:=
 	opengl? ( media-libs/libepoxy:=[X(+)] )
 	startup-notification? ( x11-libs/startup-notification:= )
+	xpresent? ( x11-libs/libXpresent )
 	xcomposite? (
 		x11-libs/libXcomposite:=
 		x11-libs/libXdamage:=
@@ -50,8 +51,7 @@ src_configure() {
 		--enable-xsync
 		--enable-render
 		--enable-randr
-		# not packaged atm, bug #549040
-		--disable-xpresent
+		$(use_enable xpresent)
 		$(use_enable xcomposite compositor)
 	)
 
-- 
2.26.2