From b5ac34c5cc3c345e51ff12eca0fafd2ca1add3a0 Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Fri, 28 Aug 2015 09:05:43 -0700
Subject: don't include system headers in dependency files

System library headers are not strictly part of our build. If they are
changing beneath our feet, then we probably have bigger problems.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Suggested-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 common.mk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common.mk b/common.mk
index 7c09ab0..6bfe8de 100644
--- a/common.mk
+++ b/common.mk
@@ -80,7 +80,7 @@ ifneq ($(BUILDDIR),$(CURDIR))
 	$(Q)mkdir -p $(dir $@)
 endif
 	$(call BECHO,CC)
-	$(Q)$(CC) $(CPPFLAGS) $(CFLAGS) -c -o $@ $< -g -MD -MF $(BUILDDIR)/.$(<F).dep
+	$(Q)$(CC) $(CPPFLAGS) $(CFLAGS) -c -o $@ $< -g -MMD -MF $(BUILDDIR)/.$(<F).dep
 
 .SUFFIXES:
 
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