Change in coreboot[master]: util/futility/Makefile: Update clean target

[Martin Roth (Code Review)]

Martin Roth has submitted this change and it was merged. ( https://review.coreboot.org/18998 )

Change subject: util/futility/Makefile: Update clean target
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util/futility/Makefile: Update clean target

- Fix clean target to pass if output doesn't exist
- Make sure $(RM) is actually defined

Change-Id: Ibcdb0e329084f58b27c3f53213a237d02c922a51
Signed-off-by: Martin Roth 
Reviewed-on: https://review.coreboot.org/18998
Reviewed-by: Aaron Durbin 
Reviewed-by: Paul Kocialkowski 
Tested-by: build bot (Jenkins)
Reviewed-by: Philippe Mathieu-Daudé 
Reviewed-by: Paul Menzel 
---
M util/futility/Makefile
1 file changed, 3 insertions(+), 2 deletions(-)

Approvals:
  Aaron Durbin: Looks good to me, approved
  Philippe Mathieu-Daudé: Looks good to me, but someone else must approve
  Paul Kocialkowski: Looks good to me, but someone else must approve
  Paul Menzel: Looks good to me, but someone else must approve
  build bot (Jenkins): Verified

diff --git a/util/futility/Makefile b/util/futility/Makefile
index 36f2b31..cce5da6 100644
--- a/util/futility/Makefile
+++ b/util/futility/Makefile
@@ -1,5 +1,6 @@
 top ?= $(abspath ../..)
 objutil ?= $(top)/util
+RM ?= rm

HOSTCC ?= $(CC)
 VBOOT_SOURCE ?= $(top)/3rdparty/vboot
@@ -9,8 +10,8 @@

.PHONY: clean
 clean:
-	$(RM) $(objutil)/futility/futility
-	$(RM) -r $(objutil)/futility/build
+	$(RM) -f $(objutil)/futility/futility
+	$(RM) -rf $(objutil)/futility/build

distclean: clean