media-libs/clutter-gst: make udev support optional

It was forced on because upstream had it automagic. Patch submitted and
accepted upstream. Also add X USE flag and make it synchronized with
clutter since there is conditional code being built depending on whether
clutter has X11 support or not ending up in clutter-gst linking to
libX11.

media-libs/clutter-gst/clutter-gst-3.0.14-r1.ebuild

@@ -0,0 +1,71 @@
+# Copyright 1999-2015 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI="5"
+GCONF_DEBUG="yes"
+GNOME2_LA_PUNT="yes"
+PYTHON_COMPAT=( python2_7 )
+
+inherit autotools eutils gnome2 python-any-r1
+
+HOMEPAGE="https://blogs.gnome.org/clutter/"
+DESCRIPTION="GStreamer integration library for Clutter"
+
+LICENSE="LGPL-2.1+"
+SLOT="3.0"
+KEYWORDS="~alpha ~amd64 ~arm ~ia64 ~ppc ~ppc64 ~sparc ~x86"
+IUSE="X examples +introspection udev"
+
+# >=cogl-1.18 provides cogl-2.0-experimental
+COMMON_DEPEND="
+	>=dev-libs/glib-2.20:2
+	>=media-libs/clutter-1.20:1.0=[X=,introspection?]
+	>=media-libs/cogl-1.18:1.0=[introspection?]
+	>=media-libs/gstreamer-1.4:1.0[introspection?]
+	>=media-libs/gst-plugins-bad-1.4:1.0
+	>=media-libs/gst-plugins-base-1.4:1.0[introspection?]
+	introspection? ( >=dev-libs/gobject-introspection-0.6.8:= )
+	udev? ( virtual/libgudev )
+"
+# uses goom from gst-plugins-good
+RDEPEND="${COMMON_DEPEND}
+	>=media-libs/gst-plugins-good-1.4:1.0
+	!udev? ( media-plugins/gst-plugins-v4l2 )
+"
+DEPEND="${COMMON_DEPEND}
+	${PYTHON_DEPS}
+	>=dev-util/gtk-doc-am-1.11
+	virtual/pkgconfig
+"
+
+src_prepare() {
+	# Make udev support controllable
+	epatch "${FILESDIR}"/${PN}-3.0.14-automagic-udev.patch
+
+	eautoreconf
+}
+
+src_configure() {
+	# --enable-gl-texture-upload is experimental
+	gnome2_src_configure \
+		--disable-maintainer-flags \
+		$(use_enable introspection) \
+		$(use_with udev)
+}
+
+src_compile() {
+	# Clutter tries to access dri without userpriv, upstream bug #661873
+	# Massive failure of a hack, see bug 360219, bug 360073, bug 363917
+	unset DISPLAY
+	gnome2_src_compile
+}
+
+src_install() {
+	gnome2_src_install
+
+	if use examples; then
+		insinto /usr/share/doc/"${PF}"/examples
+		doins examples/{*.c,*.png,README}
+	fi
+}

media-libs/clutter-gst/files/clutter-gst-3.0.14-automagic-udev.patch

@@ -0,0 +1,50 @@
+From ce92707eba5153c7ba0ee107f887480f2db494f2 Mon Sep 17 00:00:00 2001
+From: Gilles Dartiguelongue <[email protected]>
+Date: Tue, 24 Nov 2015 11:32:37 +0100
+Subject: [PATCH] Make libgudev dependency controllable by configure switch
+
+---
+ configure.ac | 27 ++++++++++++++++++++-------
+ 1 file changed, 20 insertions(+), 7 deletions(-)
+
+diff --git a/configure.ac b/configure.ac
+index 67dede9..e8f4887 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -209,13 +209,26 @@ AS_IF([test "x$have_cogl_osx" = xyes],
+         AC_SUBST([GL_LDFLAGS])
+       ])
+
+-PKG_CHECK_MODULES(GUDEV,
+-                 [gudev-1.0],
+-                 [
+-                   have_gudev=yes
+-                   AC_DEFINE([HAVE_GUDEV], [1],
+-                             ["Defined if gudev is available"])
+-                 ],[ have_gudev=no ])
++AC_ARG_WITH([udev],
++            [AS_HELP_STRING([--with-udev],
++                            [Enable camera listing through libgudev]),
++                            [], [with_udev=auto])
++            ])
++
++AS_IF([test "$with_udev" != "no"],
++      [
++        PKG_CHECK_MODULES(GUDEV,
++                          [gudev-1.0],
++                          [
++                            have_gudev=yes
++                            AC_DEFINE([HAVE_GUDEV], [1],
++                                      ["Defined if gudev is available"])
++                          ],[
++                            AS_IF([test "$with_udev" = "yes"],
++                                  [AC_MSG_ERROR([Could not find libgudev])],
++                                  [have_gudev=no])
++                          ])
++      ])
+
+ dnl ========================================================================
+ dnl Experimental support for hardware accelerated decoders.
+-- 
+2.6.3
+