fix makefile for --Wl,--as-needed (addresses #872188)

Makefile

@@ -13,7 +13,7 @@ check: hddemux
 	./testsuite
 
 hddemux: hddemux.c
-	gcc $(CFLAGS) $(LDFLAGS) -std=c11 -pedantic -Wall -Werror -o $@ $<
+	gcc $(CFLAGS) $< $(LDFLAGS) -std=c11 -pedantic -Wall -Werror -o $@
 
 hddemux.1: hddemux.1.md
 	pandoc -s -f markdown -t man -o $@ $<