The miniupnpd makefile tries to autodetect iptables capabilities.
This will incorrectly detect capabilities such as ipv6 support even though it is disabled for the target build.

As the OpenWRT buildsystem already passes the right compile flags, we can skip the autodetection.


--- a/netfilter/Makefile
+++ b/netfilter/Makefile
@@ -38,8 +38,6 @@ endif
 endif
 endif
 
-LIBS +=  /lib/libip4tc.so /lib/libip6tc.so
-
 all:	iptcrdr.o testiptcrdr iptpinhole.o \
         testiptcrdr_peer testiptcrdr_dscp test_nfct_get
 #        testiptpinhole
--- a/Makefile.linux
+++ b/Makefile.linux
@@ -73,7 +73,6 @@ CPPFLAGS += -DIPTABLES_143
 endif
 
 CFLAGS  += $(shell $(PKG_CONFIG) --cflags libiptc)
-LDLIBS  += $(shell $(PKG_CONFIG) --static --libs-only-l libiptc)
 LDFLAGS += $(shell $(PKG_CONFIG) --libs-only-L libiptc)
 LDFLAGS += $(shell $(PKG_CONFIG) --libs-only-other libiptc)
 else