subdirmk/usual.mk.in: Fix `VPATH' setting

This file isn't processed through `generate', so `&' doesn't mean
anything special.

Use `$(top_srcdir)' here because we can rely on that being established
by `main.mk'.

Signed-off-by: Mark Wooding <mdw@distorted.org.uk>

diff --git a/subdirmk/usual.mk.in b/subdirmk/usual.mk.in
index 00c48fe1ef2d0a81905dce6b0e5f11fd82f13f8a..97f99e71bd676abb016dc1c3f78b015729f5240d 100644 (file)
--- a/subdirmk/usual.mk.in
+++ b/subdirmk/usual.mk.in
@@ -3,7 +3,7 @@
 #  Copyright 2019 Ian Jackson
 # SPDX-License-Identifier: LGPL-2.0-or-later
 
-VPATH          = &^
+VPATH          = $(top_srcdir)
 
 prefix         = @prefix@
 exec_prefix    = @exec_prefix@