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 a0aa7f6..d6ce2c7 100644
--- a/Makefile
+++ b/Makefile
@@ -14,7 +14,7 @@ MAN_DIR ?= /usr/share/man/man$(MANS)
 all : $(BIN) $(MAN)
 
 $(BIN) : $(BIN).c
-	$(CC) $(CFLAGS) -o $(BIN) $(BIN).c
+	$(CC) $(CFLAGS) ${LDFLAGS} -o $(BIN) $(BIN).c
 
 $(MAN) : $(PACKAGE).sgml
 	docbook2man $(PACKAGE).sgml