VERSION="1.1.20"
SRCDIR="musl-$VERSION"
TARBALL="$SRCDIR.tar.gz"
URL="https://www.musl-libc.org/releases"
SHA256SUM="44be8771d0e6c6b5f82dd15662eb2957c9a3173a19a8b49966ac0542bbd40d61"
DEPENDS="tc-gcc1 linux_headers fortify-headers"

prepare() {
	return
}

build() {
	local cflags=""
	local ldflags=""

	if [ "x$TC_HARDENING" = "xyes" ]; then
		cflags="-fPIE -fPIC -fstack-protector-all"
		ldflags="-z noexecstack -z relro -z now"

		${TARGET}-gcc -c "$SCRIPTDIR/pkg/$PKGNAME/__stack_chk_fail_local.c" -o __stack_chk_fail_local.o
		${TARGET}-ar r libssp_nonshared.a __stack_chk_fail_local.o
	fi

	CFLAGS="$cflags" LDFLAGS="$ldflags" \
	CROSS_COMPILE="${TARGET}-" $1/configure --prefix=/ --target="$TARGET"
	CROSS_COMPILE="${TARGET}-" make -j $NUMJOBS
}

deploy() {
	local INPUT="$1"
	local DEPLOY="$2"
	local MUSL_CPU=""

	case "$TARGET" in
	i*86-*)
		MUSL_CPU="i386"
		;;
	x86_64-*)
		MUSL_CPU="x86_64"
		;;
	arm-*)
		MUSL_CPU="arm"
		;;
	*)
		echo "don't know how to map $TARGET to Musl arch"
		exit 1
		;;
	esac

	DESTDIR="$DEPLOY" make install-headers
	DESTDIR="$DEPLOY" make install-libs

	mkdir -p "$DEPLOY/etc"

	cat_file_merge "LDPATH" > "$DEPLOY/etc/ld-musl-${MUSL_CPU}.path"

	find ${DEPLOY}/lib/*.so* -exec stat {} --printf="%n m %a 0 0\\n" \; | \
		sed "s#^$DEPLOY/##g" | sed "s/644/444/g" | \
		sed "s/755/555/g" > "$DEPLOY/rootfs_files.txt"

	find "$DEPLOY/etc" -exec stat {} --printf="%n m %a 0 0\\n" \; | \
		sed "s#^$DEPLOY/##g" | tail -n +2 >> "$DEPLOY/rootfs_files.txt"

	if [ "x$TC_HARDENING" = "xyes" ]; then
		cp libssp_nonshared.a "$DEPLOY/lib"
	fi
}

check_update() {
	curl --silent -L "$URL" | grep -o ">musl-[0-9.]*tar.gz<" | \
	    sed 's/>musl-//g' | sed 's/.tar.gz<//g' | \
	    verson_find_greatest "$VERSION"
}