dev-scheme/chez: bump to 9.5.6

Package-Manager: Portage-3.0.28, Repoman-3.0.3
Signed-off-by: Maciej Barć <xgqt@riseup.net>

dev-scheme/chez/Manifest

@@ -1 +1,2 @@
 DIST chez-9.5.4.tar.gz 32313134 BLAKE2B ef8ec4e40389cfdc5bd1f631b02b5439f5353e73f95c48ecf1ec813cd6dc651b305cf019bb3e3083907f402b6578c31a10b2490bce32de6fa621f55d850ae168 SHA512 bc377fc5a7355703193849a21fbcd633f35b56f1f898c747fbddedc63ac979c124d966bdd9ed32366bb466881abdf44e03085af16e9795b10975a72c0d0b6123
+DIST chez-9.5.6.tar.gz 34565487 BLAKE2B 5d74cd3365b3039e6be1b774213da75da1080beffb1c9b5044466a8feff0171ce75d9999e69774754a5969d68825c571a88cb27d57af2718e98668e4fe936e3c SHA512 4affd73a5b2ea5cdec01fb200a32499387fc3769b7677ffe7d854f6a5567d50ba114f9f12951f99d8e0fd757c799e82e32c83079fae83e5fc138ee6e1a5f56c0

dev-scheme/chez/chez-9.5.6.ebuild

@@ -0,0 +1,63 @@
+# Copyright 2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+CSV="csv${PV}"
+
+inherit multilib
+
+DESCRIPTION="A programming language based on R6RS"
+HOMEPAGE="https://cisco.github.io/ChezScheme/ https://github.com/cisco/ChezScheme"
+SRC_URI="https://github.com/cisco/ChezScheme/releases/download/v${PV}/${CSV}.tar.gz -> ${P}.tar.gz"
+
+# Chez Scheme itself is Apache 2.0, but it vendors LZ4 (BSD-2),
+# Nanopass (MIT), stex (MIT), and zlib (ZLIB).
+LICENSE="Apache-2.0 BSD-2 MIT ZLIB"
+SLOT="0"
+KEYWORDS="~amd64"
+IUSE="X examples ncurses threads"
+
+DEPEND="
+	X? ( x11-libs/libX11 )
+	ncurses? ( sys-libs/ncurses )
+"
+RDEPEND="
+	${DEPEND}
+"
+
+S="${WORKDIR}/${CSV}"
+
+src_prepare() {
+	default
+
+	if use ncurses; then
+		eapply "${FILESDIR}/tinfo.patch"
+	fi
+}
+
+src_configure() {
+	local myconfargs=(
+		$(usex threads '--threads' '')
+		$(usex ncurses '' '--disable-curses')
+		$(usex X '' '--disable-x11')
+		--installprefix="/usr"
+		--installbin="/usr/bin"
+		--installlib="/usr/$(get_libdir)"
+		--installman="/usr/share/man"
+		--temproot="${D}"
+		--installschemename=chezscheme
+		--installpetitename=chezscheme-petite
+		--installscriptname=chezscheme-script
+		--nogzip-man-pages
+	)
+	./configure "${myconfargs[@]}" || die
+}
+
+src_install() {
+	default
+
+	if ! use examples; then
+		rm -r "${D}/usr/$(get_libdir)/${CSV}/examples" || die
+	fi
+}