media-gfx/openexr_viewers: Revision bump to 2.2.0-r1

* Converted ebuild to EAPI 6
* Made patch compatible with PATCHES
* Changed dependencies to depend on new CTL version
* Tidied metadata.xml file

Closes: #5725

media-gfx/openexr_viewers/files/openexr_viewers-2.2.0-Remove-nVidia-automagic.patch

@@ -0,0 +1,28 @@
+From e8d26df2a888f307e61584367f5dc14894d8be82 Mon Sep 17 00:00:00 2001
+From: Jonathan Scruggs <j.scruggs@gmail.com>
+Date: Sat, 23 Sep 2017 13:39:34 +0100
+Subject: [PATCH] OpenEXR_Viewers: Remove nVidia automagic
+
+---
+ OpenEXR_Viewers/configure.ac | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/configure.ac b/configure.ac
+index 94c88cd..1de94f6 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -194,7 +194,10 @@ AM_PATH_FLTK(have_fltk=yes, have_fltk=no)
+ dnl
+ dnl check for Cg
+ dnl
+-if test "${have_fltk}" = yes; then
++AC_ARG_ENABLE(cg, AC_HELP_STRING([--enable-cg],
++  [enable nvidia cg support [[default=check]]]), [want_cg="${enableval}"], [want_cg=yes])
++
++if test "${have_fltk}" = yes -a "${want_cg}" != "no"; then
+   AM_PATH_CG(have_cg=yes, have_cg=no)
+   if test "${have_cg}" = yes; then
+     AC_DEFINE(HAVE_FRAGMENT_SHADERS)
+-- 
+2.14.1
+

media-gfx/openexr_viewers/metadata.xml

@@ -7,4 +7,7 @@
 	<use>
 		<flag name="cg">Add support for nvidia's cg shaders</flag>
 	</use>
+	<upstream>
+		<remote-id type="github">openexr/openexr</remote-id>
+	</upstream>
 </pkgmetadata>

media-gfx/openexr_viewers/openexr_viewers-2.2.0-r1.ebuild

@@ -0,0 +1,58 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+inherit autotools flag-o-matic
+
+DESCRIPTION="OpenEXR Viewers"
+HOMEPAGE="http://openexr.com/"
+SRC_URI="http://download.savannah.gnu.org/releases/openexr/${P}.tar.gz"
+
+LICENSE="BSD"
+SLOT="0"
+KEYWORDS="~amd64 ~hppa ~ia64 ~ppc ~ppc64 ~sparc ~x86 ~x86-fbsd"
+IUSE="cg opengl"
+
+RDEPEND="~media-libs/ilmbase-${PV}:=
+	~media-libs/openexr-${PV}:=
+	>=media-libs/ctl-1.5.2:=
+	x11-libs/fltk:1[opengl]
+	opengl? (
+		virtual/opengl
+		x11-libs/fltk:1[opengl]
+		cg? ( media-gfx/nvidia-cg-toolkit )
+	)"
+
+DEPEND="${RDEPEND}
+	virtual/pkgconfig"
+
+PATCHES=( "${FILESDIR}/${P}-Remove-nVidia-automagic.patch" )
+
+src_prepare() {
+	default
+	sed -i -e 's:AM_CONFIG_HEADER:AC_CONFIG_HEADERS:' configure.ac || die
+	eautoreconf
+}
+
+src_configure() {
+	local myconf
+
+	if use cg; then
+		myconf="--with-cg-prefix=/opt/nvidia-cg-toolkit"
+		append-flags "$(no-as-needed)" # binary-only libCg is not properly linked
+	fi
+
+	econf \
+		$(use_enable cg) \
+		$(use_with opengl fltk-config /usr/bin/fltk-config) \
+		${myconf}
+}
+
+src_install() {
+	emake \
+		DESTDIR="${D}" \
+		docdir=/usr/share/doc/${PF}/pdf \
+		install
+
+	dodoc AUTHORS ChangeLog NEWS README
+}