diff --git a/lib/relocatable.h b/lib/relocatable.h
index 162f9d82a4..0c10ebe2a1 100644
--- a/lib/relocatable.h
+++ b/lib/relocatable.h
@@ -109,6 +109,8 @@ extern char * compute_curr_prefix (const char *orig_installprefix,
 #else
 
 /* By default, we use the hardwired pathnames.  */
+#define set_relocation_prefix(orig_prefix, curr_prefix) \
+  ((void) (orig_prefix), (void) (curr_prefix))
 #define relocate(pathname) (pathname)
 #define relocate2(pathname,allocatedp) (*(allocatedp) = NULL, (pathname))