From f36ba8f8e1fe3818396b4b8833052f264d4fd303 Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Wed, 30 Sep 2015 14:49:42 +0930
Subject: [PATCH] Makefile: only erase protobuf and PDF files with
 maintainer-clean.

Reported-by: Anthony Towns
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 Makefile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Makefile b/Makefile
index 6a99b80d2..2509cb6cc 100644
--- a/Makefile
+++ b/Makefile
@@ -178,6 +178,10 @@ update-ccan:
 distclean: clean
 	$(MAKE) -C secp256k1/ distclean || true
 	$(RM) libsecp256k1.a
+
+maintainter-clean: distclean
+	@echo 'This command is intended for maintainers to use; it'
+	@echo 'deletes files that may need special tools to rebuild.'
 	$(RM) lightning.pb-c.c lightning.pb-c.h ccan/config.h gen_version.h
 	$(RM) doc/deployable-lightning.pdf