File gcc6-fix-errors.patch of Package crda

Index: crda-3.18/Makefile
===================================================================
--- crda-3.18.orig/Makefile
+++ crda-3.18/Makefile
@@ -26,7 +26,7 @@ PUBKEY_DIR?=pubkeys
 RUNTIME_PUBKEY_DIR?=/etc/wireless-regdb/pubkeys
 
 CFLAGS += -O2 -fpic
-CFLAGS += -std=gnu99 -Wall -Werror -pedantic
+CFLAGS += -std=gnu99 -Wall -Werror -Wno-unused-const-variable -pedantic
 CFLAGS += -Wall -g
 LDLIBREG += -lreg
 LDLIBS += $(LDLIBREG)
@@ -135,23 +135,23 @@ install-libreg:
 
 crda: crda.o
 	$(NQ) '  LD  ' $@
-	$(Q)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LDLIBS) $(NLLIBS)
+	$(Q)$(CC) $(LDFLAGS) -o $@ $^ $(LDLIBS) $(NLLIBS)
 
 regdbdump: regdbdump.o
 	$(NQ) '  LD  ' $@
-	$(Q)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LDLIBS)
+	$(Q)$(CC) $(LDFLAGS) -o $@ $^ $(LDLIBS)
 
 intersect: intersect.o
 	$(NQ) '  LD  ' $@
-	$(Q)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LDLIBS)
+	$(Q)$(CC) $(LDFLAGS) -o $@ $^ $(LDLIBS)
 
 db2rd: db2rd.o
 	$(NQ) '  LD  ' $@
-	$(Q)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LDLIBS)
+	$(Q)$(CC) $(LDFLAGS) -o $@ $^ $(LDLIBS)
 
 optimize: optimize.o
 	$(NQ) '  LD  ' $@
-	$(Q)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LDLIBS)
+	$(Q)$(CC) $(LDFLAGS) -o $@ $^ $(LDLIBS)
 
 verify: $(REG_BIN) regdbdump
 	$(NQ) '  CHK  $(REG_BIN)'