moved everything to different stages

stage/chroot/zstd.bash

@@ -0,0 +1,15 @@
+
+fetch $ZSTD_URL
+
+sudo chroot "$SYSROOT" /usr/bin/env -i MAKEFLAGS="$MAKEFLAGS" PATH=/usr/bin:/usr/sbin SOURCES=/sources ZSTD_VERSION=$ZSTD_VERSION /usr/bin/bash <<- "EOF"
+	set -euo pipefail
+
+	cd "$SOURCES" && tar xf zstd-$ZSTD_VERSION.tar.gz && cd zstd-$ZSTD_VERSION
+	
+	make prefix=/usr
+	make prefix=/usr install
+
+	rm /usr/lib/libzstd.a
+
+	cd "$SOURCES" && rm -rf zstd-$ZSTD_VERSION
+EOF