Index: util_loclib.h
===================================================================
--- util_loclib.h	(revision 3836)
+++ util_loclib.h	(revision 3837)
@@ -29,6 +29,7 @@
 /* Utility functions for maintaining a local (per sheet) library */
 
 #include <libcschem/concrete.h>
+#include <libcschem/plug_library.h>
 
 /* Return the group whose purpose matches purpose from under sheet's
    indirect group. If alloc is 1, and the group does not exist, it is
@@ -35,3 +36,8 @@
    created using src and *alloced is set to 1. */
 csch_cgrp_t *csch_loclib_get_root(csch_sheet_t *sheet, const char *purpose, csch_source_arg_t *src, int alloc, int *alloced);
 
+
+/* Resolve library root dir and indirect root group for a local lib master.
+   If alloc==1, create it using src when missing. Returns 0 on success. On
+   failure there's no root dir in indirect. */
+int csch_loclib_get_roots(csch_lib_t **root_dir_out, const csch_cgrp_t **root_grp_out, csch_lib_master_t *master, csch_sheet_t *sheet, const csch_source_arg_t *src, int alloc, int *alloced);