Some compile fixes found by Larry Doolittle
diff --git a/Config.h b/Config.h
index d95942a..1aa28a5 100644
--- a/Config.h
+++ b/Config.h
@@ -327,11 +327,11 @@
 #endif
 #endif
 //
+#ifdef BB_TAR
 #ifdef BB_FEATURE_TAR_GZIP
 #ifndef BB_GUNZIP
 #define BB_GUNZIP
 #endif
-#endif
 //
 #if defined BB_MOUNT && defined BB_FEATURE_NFSMOUNT
 #define BB_NFSMOUNT