oops.  make this actually work as intended....
diff --git a/libpwdgrp/shadow.c b/libpwdgrp/shadow.c
index ed0ef01..9e218f9 100644
--- a/libpwdgrp/shadow.c
+++ b/libpwdgrp/shadow.c
@@ -54,7 +54,7 @@
 	if (shadow) {
 		rewind(shadow);
 	} else {
-		shadow = bb_xfopen(SHADOW_FILE, "r");
+		shadow = bb_xfopen(bb_path_shadow_file, "r");
 	}
 }