--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/zsh/zsh-post.sh	Wed Mar 13 20:10:00 2019 +0100
@@ -0,0 +1,24 @@
+#!/bin/sh
+#
+# Copyright (c) 2019 David Demelier <markand@malikania.fr>
+#
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+#
+
+if [ "$1" = "install" ]; then
+	if ! grep -q "/usr/bin/zsh" /etc/shells >/dev/null 2>&1; then
+		echo "/usr/bin/zsh" >> /etc/shells
+	fi
+elif [ "$1" = "uninstall" ]; then
+	sed -i -e '/\/usr\/bin\/zsh/d' /etc/shells
+fi

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/zsh/zsh.sh	Wed Mar 13 20:10:00 2019 +0100
@@ -0,0 +1,85 @@
+#!/bin/sh
+#
+# Copyright (c) 2019 David Demelier <markand@malikania.fr>
+#
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+#
+
+PKGNAME=zsh
+PKGVERSION=5.7.1
+PKGREVISION=1
+PKGLICENSE="BSD"
+PKGSUMMARY="advanced command interpreter"
+PKGDOWNLOAD="https://www.zsh.org/pub/$PKGNAME-$PKGVERSION.tar.xz"
+PKGDEPENDS="lib/ncurses"
+PKGOPTIONS="CAP GDBM PCRE"
+
+: ${CHOST:=$(uname -m)-linux-musl}
+: ${CBUILD:=$(uname -m)-linux-musl}
+: ${CC:=gcc}
+: ${CFLAGS:=-O2}
+: ${CXX:=g++}
+: ${CXXFLAGS:=-O2}
+: ${LDFLAGS:=}
+: ${LIBS:=}
+: ${CAP:=no}
+: ${GDBM:=yes}
+: ${PCRE:=no}
+
+if [ "$CAP" = "yes" ]; then
+	PKGDEPENDS="core/libcap $PKGDEPENDS"
+	with_cap="--enable-cap"
+else
+	with_cap="--disable-cap"
+fi
+
+if [ "$GDBM" = "yes" ]; then
+	PKGDEPENDS="db/gdbm $PKGDEPENDS"
+	with_gdbm="--enable-gdbm"
+else
+	with_gdbm="--disable-gdbm"
+fi
+
+if [ "$PCRE" = "yes" ]; then
+	PKGDEPENDS="lib/pcre $PKGDEPENDS"
+	with_pcre="--enable-pcre"
+else
+	with_pcre="--disable-pcre"
+fi
+
+build()
+{
+	rm -rf $PKGNAME-$PKGVERSION
+	tar xvaf $PKGNAME-$PKGVERSION.tar.xz
+	pushd $PKGNAME-$PKGVERSION
+
+	CC="$CC" \
+	CFLAGS="$CFLAGS" \
+	CXX="$CXX" \
+	CXXFLAGS="$CXXFLAGS" \
+	LDFLAGS="$LDFLAGS" \
+	LIBS="$LIBS" \
+	./configure \
+		--build=$CBUILD \
+		--host=$CHOST \
+		--prefix=/usr \
+		--enable-multibyte \
+		$with_cap \
+		$with_gdbm \
+		$with_pcre
+	make
+	make install DESTDIR=$DESTDIR
+
+	popd
+	rm -rf $PKGNAME-$PKGVERSION
+}