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diff --git a/media-sound/chuck/chuck-1.3.5.2.ebuild b/media-sound/chuck/chuck-1.3.5.2.ebuild
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+# Copyright 1999-2016 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=6
+inherit toolchain-funcs flag-o-matic
+
+DESCRIPTION="Strongly-timed, concurrent, and on-the-fly audio programming language"
+HOMEPAGE="http://chuck.cs.princeton.edu/"
+SRC_URI="http://chuck.cs.princeton.edu/release/files/${P}.tgz"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+IUSE="+alsa jack examples"
+REQUIRED_USE="|| ( alsa jack )"
+
+RDEPEND="app-eselect/eselect-chuck
+	media-libs/libsndfile
+	alsa? ( media-libs/alsa-lib )
+	jack? ( media-sound/jack-audio-connection-kit )"
+DEPEND="${RDEPEND}
+	sys-devel/bison
+	sys-devel/flex"
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-1.2.1.1-hid-smc.patch
+	"${FILESDIR}"/${PN}-1.3.5.1-makefile.patch
+)
+
+compile_backend() {
+	backend=$1
+	pushd "${S}/src" &>/dev/null || die
+	einfo "Compiling against ${backend}"
+	emake CC=$(tc-getCC) CXX=$(tc-getCXX) linux-${backend}
+	mv chuck{,-${backend}} || die
+	emake clean
+	popd &>/dev/null || die
+}
+
+src_compile() {
+	# when compile with athlon or athlon-xp flags
+	# chuck crashes on removing a shred with a double free or corruption
+	# it happens in Chuck_VM_Stack::shutdown() on the line
+	#   SAFE_DELETE_ARRAY( stack );
+	replace-cpu-flags athlon athlon-xp i686
+
+	use jack && compile_backend jack
+	use alsa && compile_backend alsa
+}
+
+src_install() {
+	use jack && dobin src/chuck-jack
+	use alsa && dobin src/chuck-alsa
+
+	dodoc AUTHORS DEVELOPER PROGRAMMER QUICKSTART README THANKS TODO VERSIONS
+	docinto doc
+	dodoc doc/*
+	if use examples; then
+		insinto /usr/share/doc/${PF}/
+		doins -r examples
+		docompress -x /usr/share/doc/${PF}/examples
+	fi
+}
+
+pkg_postinst() {
+	if [[ -z ${REPLACING_VERSIONS} ]]; then
+		elog "Chuck now can use multiple audio engines, so you can specify"
+		elog "the preferred audio engine with chuck-{jack,alsa}"
+		elog "Or you can use 'eselect chuck' to set the audio engine"
+	fi
+	eselect chuck update --if-unset
+}