[Libguestfs] [nbdkit PATCH] eval: Rebuild hard link if git breaks it

[Eric Blake]

Commit 39b40750dd works if you use 'make clean', but not if you rely
on incremental builds.  Git likes to update files by creating new
inodes, which strands hard links.  We could either use symlinks, or as
done here, add a dependency to force the hard links to be rebuilt as
needed.

Fixes: 45b4877fde
Signed-off-by: Eric Blake <eblake at redhat.com>
---
 plugins/eval/Makefile.am | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/plugins/eval/Makefile.am b/plugins/eval/Makefile.am
index abbe17a0..19de6c0d 100644
--- a/plugins/eval/Makefile.am
+++ b/plugins/eval/Makefile.am
@@ -1,5 +1,5 @@
 # nbdkit
-# Copyright (C) 2017-2019 Red Hat Inc.
+# Copyright (C) 2017-2020 Red Hat Inc.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
@@ -43,7 +43,7 @@ BUILT_SOURCES = \
 	call.c \
 	methods.c \
 	$(NULL)
-$(BUILT_SOURCES):
+$(BUILT_SOURCES): ../sh/call.c ../sh/methods.c
 	ln -f ../sh/$@
 CLEANFILES += $(BUILT_SOURCES)

-- 
2.25.1