[PATCH 2/2] build: use -MMD for generated dependencies

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For the autogenerated dependencies, we're not interested
in the system header files, only the project's ones.

So use the option '-MMD' instead of '-MD'.

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx>
---
 Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index a36a3d9a3..8b3940e37 100644
--- a/Makefile
+++ b/Makefile
@@ -99,10 +99,10 @@ EXTRA_OBJS += compile-i386.o
 
 # Can we use GCC's generated dependencies?
 HAVE_GCC_DEP:=$(shell touch .gcc-test.c && 				\
-		$(CC) -c -Wp,-MP,-MD,.gcc-test.d .gcc-test.c 2>/dev/null && \
+		$(CC) -c -Wp,-MP,-MMD,.gcc-test.d .gcc-test.c 2>/dev/null && \
 		echo 'yes'; rm -f .gcc-test.d .gcc-test.o .gcc-test.c)
 ifeq ($(HAVE_GCC_DEP),yes)
-cflags += -Wp,-MP,-MD,$(@D)/.$(@F).d
+cflags += -Wp,-MP,-MMD,$(@D)/.$(@F).d
 endif
 
 # Can we use libxml (needed for c2xml)?
-- 
2.16.0

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