From eb61c85e5f4c5a79dd8e01a36bddae9271612da2 Mon Sep 17 00:00:00 2001
From: Karl Wette <karl.wette@ligo.org>
Date: Thu, 29 May 2014 14:26:02 +0200
Subject: [PATCH] check-maintainer-clean: print skipping message for
 in-source-tree builds

---
 Makefile.in | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/Makefile.in b/Makefile.in
index 05c506559..bb0845f37 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -456,11 +456,13 @@ maintainer-clean:
 	@$(MAKE) $(FLAGS) distclean-helper
 
 check-maintainer-clean: maintainer-clean
-	@if test "x$(srcdir)" != "x."; then \
-		for file in `find . -type f`; do \
-			echo "file missed by maintainer-clean: $$file"; \
-		done; \
+	@if test "x$(srcdir)" = "x."; then \
+		echo "skipping maintainer-clean check (in-source-tree build)"; \
+		exit 0; \
 	fi; \
+	for file in `find . -type f`; do \
+		echo "file missed by maintainer-clean: $$file"; \
+	done; \
 	test "x$$file" = x && echo "all files cleaned by maintainer-clean"
 
 #####################################################################