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.


diff -up miniupnpd-1.8.20140906/netfilter/Makefile.orig miniupnpd-1.8.20140906/netfilter/Makefile
--- miniupnpd-1.8.20140906/netfilter/Makefile.orig	2014-09-28 16:39:56.652296642 +0200
+++ miniupnpd-1.8.20140906/netfilter/Makefile	2013-12-13 14:12:11.000000000 +0100
@@ -38,6 +38,4 @@ endif
 endif
 endif
 
-LIBS +=  /lib/libip4tc.so /lib/libip6tc.so
-
 all:	iptcrdr.o testiptcrdr iptpinhole.o \
         testiptcrdr_peer testiptcrdr_dscp test_nfct_get
 #        testiptpinhole
diff -up miniupnpd-1.8.20140906/Makefile.linux.orig miniupnpd-1.8.20140906/Makefile.linux
--- miniupnpd-1.8.20140906/Makefile.linux.orig	2014-09-28 16:46:06.781835136 +0200
+++ miniupnpd-1.8.20140906/Makefile.linux	2014-09-28 16:46:14.388907413 +0200
@@ -70,7 +70,6 @@ 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