From db42d52be455757dcdf9f650c02102d5a947e5fd Mon Sep 17 00:00:00 2001
From: Tim Hockin <thockin@google.com>
Date: Tue, 24 May 2016 09:18:22 -0700
Subject: [PATCH] Add a clean_generated make rule

Easier to clean up the mess when needed.
---
 Makefile | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index d673409448..fde1a6621f 100644
--- a/Makefile
+++ b/Makefile
@@ -142,13 +142,20 @@ test-cmd:
 #
 # Example:
 #   make clean
-clean:
+clean: clean_generated
 	build/make-clean.sh
 	rm -rf $(OUT_DIR)
-	find . -type f -name $(GENERATED_FILE_PREFIX)\* | xargs rm -f
 	rm -rf Godeps/_workspace # Just until we are sure it is gone
 .PHONY: clean
 
+# Remove all auto-generated artifacts.
+#
+# Example:
+#   make clean_generated
+clean_generated:
+	find . -type f -name $(GENERATED_FILE_PREFIX)\* | xargs rm -f
+.PHONY: clean_generated
+
 # Run 'go vet'.
 #
 # Args: