+AC_ARG_ENABLE([zstd],
+ AS_HELP_STRING([--disable-zstd], [build without zstd support]),
+ [], [enable_zstd=yes]
+)
+
+if test "x$enable_zstd" = xyes; then
+ PKG_CHECK_MODULES(ZSTD, [libzstd >= 1.0.0])
+ PKG_STATIC(ZSTD_LIBS_STATIC, [libzstd])
+fi
+
+AS_IF([test "x$enable_zstd" = xyes], [BTRFSRESTORE_ZSTD=1], [BTRFSRESTORE_ZSTD=0])
+AC_SUBST(BTRFSRESTORE_ZSTD)
+