nfs-kernel-server: disable IPv6 for host

Some issue with static libtirpc

Signed-off-by: Rosen Penev <rosenp@gmail.com>

net/nfs-kernel-server/Makefile

@@ -8,7 +8,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=nfs-kernel-server
 PKG_VERSION:=2.5.4
-PKG_RELEASE:=4
+PKG_RELEASE:=5
 PKG_HASH:=546ce4b51eeebc66e354b6cc6ca0ce509437efbdef0caaf99389534eef0e598b
 
 PKG_SOURCE_URL:=@SF/nfs
@@ -150,6 +150,7 @@ HOST_CONFIGURE_VARS += \
 	ac_cv_header_blkid_blkid_h=yes \
 	ac_cv_lib_resolv___res_querydomain=yes \
 	ac_cv_func_prctl=yes \
+	enable_ipv6=no \
 	GSSGLUE_CFLAGS=" " \
 	GSSGLUE_LIBS=" " \
 	RPCSECGSS_CFLAGS=" " \