x11-misc/rss-glx: Fix C++11 narrowing issues

This fixes building with clang. Thanks to Malcolm Lashley
for the patch.

Closes: https://bugs.gentoo.org/742755
Signed-off-by: Alexander Miller <alex.miller@gmx.de>
Package-Manager: Portage-3.0.13, Repoman-3.0.2
Signed-off-by: David Seifert <soap@gentoo.org>

2 files changed, 151 insertions, 0 deletions

diff --git a/x11-misc/rss-glx/files/rss-glx-0.9.1-c++11-narrowing.patch b/x11-misc/rss-glx/files/rss-glx-0.9.1-c++11-narrowing.patch
new file mode 100644
index 000000000000..c92f1162dd37
--- /dev/null
+++ b/x11-misc/rss-glx/files/rss-glx-0.9.1-c++11-narrowing.patch
@@ -0,0 +1,22 @@
+--- rss-glx_0.9.1/src/hyperspace.cpp	2009-05-16 23:41:52.000000000 +0100
++++ rss-glx_0.9.1/src/hyperspace.cpp	2021-01-22 22:54:20.297572792 +0000
+@@ -376,7 +376,7 @@
+ 	double flarepos[3] = {0.0f, 2.0f, 0.0f};
+ 	glBindTexture(GL_TEXTURE_2D, flaretex[0]);
+ 	sunStar->draw(camPos);
+-	float diff[3] = {flarepos[0] - camPos[0], flarepos[1] - camPos[1], flarepos[2] - camPos[2]};
++	float diff[3] = {(float)flarepos[0] - camPos[0], (float)flarepos[1] - camPos[1], (float)flarepos[2] - camPos[2]};
+ 	float alpha = 0.5f - 0.005f * sqrtf(diff[0] * diff[0] + diff[1] * diff[1] + diff[2] * diff[2]);
+ 	if(alpha > 0.0f)
+ 		flare(flarepos, 1.0f, 1.0f, 1.0f, alpha);
+--- rss-glx_0.9.1/src/flare.cpp	2009-04-21 17:54:42.000000000 +0100
++++ rss-glx_0.9.1/src/flare.cpp	2021-01-22 22:54:57.808305771 +0000
+@@ -193,7 +193,7 @@
+ 		&winx, &winy, &winz);
+ 	x = (float(winx) / float(xsize)) * aspectRatio;
+ 	y = float(winy) / float(ysize);
+-	float diff[3] = {pos[0] - camPos[0], pos[1] - camPos[1], pos[2] - camPos[2]};
++	float diff[3] = {(float)pos[0] - camPos[0], (float)pos[1] - camPos[1], (float)pos[2] - camPos[2]};
+ 	if(diff[0] * billboardMat[8] + diff[1] * billboardMat[9] + diff[2] * billboardMat[10] > 0.0f)
+ 		return;
+ 
diff --git a/x11-misc/rss-glx/rss-glx-0.9.1-r2.ebuild b/x11-misc/rss-glx/rss-glx-0.9.1-r2.ebuild
new file mode 100644
index 000000000000..46625edcea17
--- /dev/null
+++ b/x11-misc/rss-glx/rss-glx-0.9.1-r2.ebuild
@@ -0,0 +1,129 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+inherit autotools eutils multilib
+
+MY_P=${PN}_${PV}
+
+DESCRIPTION="Really Slick OpenGL Screensavers for XScreenSaver"
+HOMEPAGE="http://rss-glx.sourceforge.net"
+SRC_URI="mirror://sourceforge/${PN}/${MY_P}.tar.bz2"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~ppc ~ppc64 ~sparc ~x86"
+IUSE="+bzip2 openal quesoglc"
+
+RDEPEND="
+	x11-libs/libX11
+	x11-libs/libXext
+	>=media-libs/glew-1.5.1:=
+	media-libs/mesa[X(+)]
+	>=media-gfx/imagemagick-6.4:=
+	>=x11-misc/xscreensaver-5.08-r2
+	bzip2? ( app-arch/bzip2 )
+	openal? ( >=media-libs/freealut-1.1.0-r1 )
+	quesoglc? ( media-libs/quesoglc )
+"
+DEPEND="
+	${RDEPEND}
+	x11-base/xorg-proto
+	virtual/pkgconfig
+	sys-apps/sed
+"
+
+DOCS="ChangeLog README*"
+S=${WORKDIR}/${MY_P}
+PATCHES=(
+	"${FILESDIR}"/${P}-quesoglc.patch
+	"${FILESDIR}"/${P}-asneeded.patch
+	"${FILESDIR}"/${P}-imagemagick-7.patch
+	"${FILESDIR}"/${P}-c++11-narrowing.patch
+)
+
+src_prepare() {
+	default
+
+	sed -i \
+		-e '/CFLAGS=/s:-O2:${CFLAGS}:' \
+		-e '/CXXFLAGS=/s:-O2:${CXXFLAGS}:' \
+		-e 's|AM_CONFIG_HEADER|AC_CONFIG_HEADERS|g' \
+		configure.in || die
+
+	eautoreconf
+}
+
+src_configure() {
+	econf \
+		$(use_enable bzip2) \
+		$(use_enable openal sound) \
+		$(use_with quesoglc) \
+		--bindir=/usr/$(get_libdir)/misc/xscreensaver \
+		--enable-shared \
+		--with-configdir=/usr/share/xscreensaver/config
+}
+
+pkg_postinst() {
+	local xssconf="${ROOT}usr/share/X11/app-defaults/XScreenSaver"
+
+	if [ -f ${xssconf} ]; then
+		sed -e '/*programs:/a\
+		GL:       \"Cyclone\"  cyclone --root     \\n\\\
+		GL:      \"Euphoria\"  euphoria --root    \\n\\\
+		GL:    \"Fieldlines\"  fieldlines --root  \\n\\\
+		GL:        \"Flocks\"  flocks --root      \\n\\\
+		GL:          \"Flux\"  flux --root        \\n\\\
+		GL:        \"Helios\"  helios --root      \\n\\\
+		GL:    \"Hyperspace\"  hyperspace --root  \\n\\\
+		GL:       \"Lattice\"  lattice --root     \\n\\\
+		GL:        \"Plasma\"  plasma --root      \\n\\\
+		GL:     \"Pixelcity\"  pixelcity --root   \\n\\\
+		GL:     \"Skyrocket\"  skyrocket --root   \\n\\\
+		GL:    \"Solarwinds\"  solarwinds --root  \\n\\\
+		GL:     \"Colorfire\"  colorfire --root   \\n\\\
+		GL:   \"Hufos Smoke\"  hufo_smoke --root  \\n\\\
+		GL:  \"Hufos Tunnel\"  hufo_tunnel --root \\n\\\
+		GL:    \"Sundancer2\"  sundancer2 --root  \\n\\\
+		GL:          \"BioF\"  biof --root        \\n\\\
+		GL:   \"BusySpheres\"  busyspheres --root \\n\\\
+		GL:   \"SpirographX\"  spirographx --root \\n\\\
+		GL:    \"MatrixView\"  matrixview --root  \\n\\\
+		GL:        \"Lorenz\"  lorenz --root      \\n\\\
+		GL:      \"Drempels\"  drempels --root    \\n\\\
+		GL:      \"Feedback\"  feedback --root    \\n\\' \
+			-i ${xssconf} || die
+	fi
+}
+
+pkg_postrm() {
+	local xssconf="${ROOT}usr/share/X11/app-defaults/XScreenSaver"
+
+	if [ -f ${xssconf} ]; then
+		sed \
+			-e '/\"Cyclone\"  cyclone/d' \
+			-e '/\"Euphoria\"  euphoria/d' \
+			-e '/\"Fieldlines\"  fieldlines/d' \
+			-e '/\"Flocks\"  flocks/d' \
+			-e '/\"Flux\"  flux/d' \
+			-e '/\"Helios\"  helios/d' \
+			-e '/\"Hyperspace\"  hyperspace/d' \
+			-e '/\"Lattice\"  lattice/d' \
+			-e '/\"Plasma\"  plasma/d' \
+			-e '/\"Pixelcity\"  pixelcity/d' \
+			-e '/\"Skyrocket\"  skyrocket/d' \
+			-e '/\"Solarwinds\"  solarwinds/d' \
+			-e '/\"Colorfire\"  colorfire/d' \
+			-e '/\"Hufos Smoke\"  hufo_smoke/d' \
+			-e '/\"Hufos Tunnel\"  hufo_tunnel/d' \
+			-e '/\"Sundancer2\"  sundancer2/d' \
+			-e '/\"BioF\"  biof/d' \
+			-e '/\"BusySpheres\"  busyspheres/d' \
+			-e '/\"SpirographX\"  spirographx/d' \
+			-e '/\"MatrixView\"  matrixview/d' \
+			-e '/\"Lorenz\"  lorenz/d' \
+			-e '/\"Drempels\"  drempels/d' \
+			-e '/\"Feedback\"  feedback/d' \
+			-i ${xssconf} || die
+	fi
+}