zeroconf: fix QA warning for GNU_HASH

Add LDFLAGS variable to Makefile so that extra linker flags can be sent
via this variable.

Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Joe MacDonald <joe_macdonald@mentor.com>

meta-networking/recipes-protocols/zeroconf/zeroconf/makefile-add-ldflags.patch

@@ -0,0 +1,19 @@
+Add LDFLAGS variable to Makefile, make sure the extra linker flags can be passed.
+
+Upstream-Status: Pending
+
+Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
+
+diff --git a/Makefile b/Makefile
+index 77f3364..c98083f 100644
+--- a/Makefile
++++ b/Makefile
+@@ -18,7 +18,7 @@ clean:
+ 
+ zeroconf: zeroconf.o delay.o
+ 	$(Q)echo "Creating $@"
+-	$(Q)$(CC) $(CFLAGS) -o $@ $^ $(LIBS)
++	$(Q)$(CC) $(CFLAGS) ${LDFLAGS} -o $@ $^ $(LIBS)
+ 
+ 
+ # Automatic dependency generation

meta-networking/recipes-protocols/zeroconf/zeroconf_0.9.bb

@@ -18,6 +18,7 @@ PR = "r1"
 
 SRC_URI = "http://www.progsoc.org/~wildfire/zeroconf/download/${BPN}-${PV}.tar.gz \
            file://compilefix.patch \
+           file://makefile-add-ldflags.patch \
            file://zeroconf-default \
            file://debian-zeroconf"