--- /dev/null
+#!/bin/sh
+
+. "$COMMON/platform.sh"
+
+zstd_supports_format()
+{
+ zstd -h | grep > $INTOVOID -- "--format=$1"
+}
+
+format_extension()
+{
+ if [ "$1" = "zstd" ]; then
+ printf "zst"
+ elif [ "$1" = "gzip" ]; then
+ printf "gz"
+ else
+ printf "$1"
+ fi
+}